dsPIC30F Data Sheet Motor Control and Power Conversion Family High Performance Digital Signal Controllers 2004 Microchip Technology Inc. Preliminary DS70082G Note the following details of the code protection feature on Microchip devices: * Microchip products meet the specification contained in their particular Microchip Data Sheet. * Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. * There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. * Microchip is willing to work with the customer who is concerned about the integrity of their code. * Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2004, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro(R) 8-bit MCUs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001:2000 certified. DS70082G-page ii Preliminary 2004 Microchip Technology Inc. dsPIC30F dsPIC30F Enhanced Flash 16-bit Digital Signal Controllers Motor Control and Power Conversion Family Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). High Performance Modified RISC CPU: * * * * * * * * * * * * * * * * * * * * Modified Harvard architecture C compiler optimized instruction set architecture 84 base instructions 24-bit wide instructions, 16-bit wide data path Linear program memory addressing up to 4M Instruction Words Linear data memory addressing up to 64 Kbytes Up to 144 Kbytes on-chip Flash program space Up to 48K Instruction Words Up to 8 Kbytes of on-chip data RAM Up to 4 Kbytes of non-volatile data EEPROM 16 x 16-bit working register array Three Address Generation Units that enable: - Dual data fetch - Accumulator write back for DSP operations Flexible Addressing modes supporting: - Indirect, Modulo and Bit-Reversed modes Two, 40-bit wide accumulators with optional saturation logic 17-bit x 17-bit single cycle hardware fractional/ integer multiplier Single cycle Multiply-Accumulate (MAC) operation 40-stage Barrel Shifter Up to 30 MIPs operation: - DC to 40 MHz external clock input - 4 MHz-10 MHz oscillator input with PLL active (4x, 8x, 16x) Up to 42 interrupt sources - 8 user selectable priority levels Vector table with up to 62 vectors - 54 interrupt vectors - 8 processor exceptions and software traps 2004 Microchip Technology Inc. Peripheral Features: * High current sink/source I/O pins: 25 mA/25 mA * Up to 5 external interrupt sources * Timer module with programmable prescaler: - Up to five 16-bit timers/counters; optionally pair up 16-bit timers into 32-bit timer modules * 16-bit Capture input functions * 16-bit Compare/PWM output functions - Dual Compare mode available * 3-wire SPITM modules (supports 4 Frame modes) * I2CTM module supports Multi-Master/Slave mode and 7-bit/10-bit addressing * Addressable UART modules supporting: - Interrupt on address bit - Wake-up on Start bit - 4 characters deep TX and RX FIFO buffers * CAN bus modules Motor Control PWM Module Features: * Up to 8 PWM output channels - Complementary or Independent Output modes - Edge and Center Aligned modes * Up to 4 duty cycle generators * Dedicated time base with 4 modes * Programmable output polarity * Dead-time control for Complementary mode * Manual output control * Trigger for A/D conversions Quadrature Encoder Interface Module Features: * * * * * * * Phase A, Phase B and Index Pulse input 16-bit up/down position counter Count direction status Position Measurement (x2 and x4) mode Programmable digital noise filters on inputs Alternate 16-bit Timer/Counter mode Interrupt on position counter rollover/underflow Preliminary DS70082G-page 1 dsPIC30F Input Capture Module Features: Special Microcontroller Features: * Captures 16-bit timer value - Capture every 1st, 4th or 16th rising edge - Capture every falling edge - Capture every rising and falling edge * Resolution of 33 ns at 30 MIPs * Timer2 or Timer3 time base selection * Input Capture during Idle * Interrupt on input capture event * Enhanced Flash program memory: - 10,000 erase/write cycle (min.) for industrial temperature range, 100K (typical) * Data EEPROM memory: - 100,000 erase/write cycle (min.) for industrial temperature range, 1M (typical) * Self-reprogrammable under software control * Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) * Flexible Watchdog Timer (WDT) with on-chip low power RC oscillator for reliable operation * Fail-Safe clock monitor operation * Detects clock failure and switches to on-chip low power RC oscillator * Programmable code protection * In-Circuit Serial ProgrammingTM (ICSPTM) via 3 pins and power/ground * Selectable Power Management modes - Sleep, Idle and Alternate Clock modes Analog Features: * 10-bit Analog-to-Digital Converter (A/D) with: - 500 Ksps (for 10-bit A/D) conversion rate - Up to 16 input channels - Conversion available during Sleep and Idle * Programmable Low Voltage Detection (PLVD) * Programmable Brown-out Detection and Reset generation CMOS Technology: * * * * Low power, high speed Flash technology Wide operating voltage range (2.5V to 5.5V) Industrial and Extended temperature ranges Low power consumption dsPIC30F Motor Control and Power Conversion Family Pins UART SPITM I2CTM CAN Program Output Motor SRAM EEPROM Timer Input A/D 10-bit Quad Mem. Bytes/ Comp/Std Control Bytes Bytes 16-bit Cap 500 Ksps Enc Instructions PWM PWM Device dsPIC30F2010 28 12K/4K 512 1024 3 4 2 6 ch 6 ch Yes 1 1 1 - dsPIC30F3010 28 24K/8K 1024 1024 5 4 2 6 ch 6 ch Yes 1 1 1 - dsPIC30F4012 28 48K/16K 2048 1024 5 4 2 6 ch 6 ch Yes 1 1 1 1 dsPIC30F3011 40/44 24K/8K 1024 1024 5 4 4 6 ch 9 ch Yes 2 1 1 - dsPIC30F4011 40/44 48K/16K 2048 1024 5 4 4 6 ch 9 ch Yes 2 1 1 1 dsPIC30F5015 64 66K/22K 2048 1024 5 4 4 8 ch 16 ch Yes 1 2 1 1 dsPIC30F6010 80 144K/48K 8192 4096 5 8 8 8 ch 16 ch Yes 2 2 1 2 DS70082G-page 2 Preliminary 2004 Microchip Technology Inc. dsPIC30F Pin Diagrams 28 27 26 25 24 23 22 EMUC3/AN1/VREF- /CN3/RB1 EMUD3/AN0/VREF+/CN2/RB0 MCLR AVDD AVSS PWM1L/RE0 PWM1H/RE1 28-Pin QFN dsPIC30F2010 8 9 10 11 12 13 14 1 2 3 4 5 6 7 21 20 19 18 17 16 15 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 VDD VSS PGC/EMUC/U1RX/SDI1/SDA/RF2 EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 VDD EMUD2/OC1/IC1/INT1/RD0 EMUC2/OC0/IC1/INT0/RD0 FLTA/INT0/SCK1/OCFA/RE8 PGD/EMUD/U1TX/SDO1/SCL/RF3 AN2/SS1/CN4/RB2 AN3/INDX/CN5 RB3 AN4/QEA/IC7/CN6/RB4 AN5/QEB/IC8/CN7/RB5 VSS OSC1/CLKIN OSC2/CLKO/RC15 Note: Pinout subject to change. See specific device data sheet for the most current design information. 2004 Microchip Technology Inc. Preliminary DS70082G-page 3 dsPIC30F Pin Diagrams 28-Pin SDIP and SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 dsPIC30F2010 dsPIC30F3010 MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 AN4/QEA/IC7/CN6/RB4 AN5/QEB/IC8/CN7/RB5 VSS OSC1/CLKI OSC2/CLKO/RC15 EMUD1/SOSCI/T2CK/U1ATX/CN1//RC13 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 VDD EMUD2/OC2/IC2/INT2/RD1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AVDD AVSS PWM1L/RE0 PWM1H/RE1 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 VDD VSS PGC/EMUC/U1RX/SDI1/SDA/RF2 PGD/EMUD/U1TX/SDO1/SCL/RF3 FLTA/INT0/SCK1/OCFA/RE8 EMUC2/OC1/IC1/INT1/RD0 Note: Pinout subject to change. See specific device data sheet for the most current design information. 28-Pin SDIP and SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 dsPIC30F4012 MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 AN4/QEA/IC7/CN6/RB4 AN5/QEB/IC8/CN7/RB5 VSS OSC1/CLKI OSC2/CLKO/RC15 EMUD1/SOSCI/T2CK/U1ATX/CN1//RC13 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 VDD EMUD2/OC2/IC2/INT2/RD1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AVDD AVSS PWM1L/RE0 PWM1H/RE1 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 VDD VSS PGC/EMUC/U1RX/SDI1/SDA/C1RX/RF2 PGD/EMUD/U1TX/SDO1/SCL/C1TX/RF3 FLTA/INT0/SCK1/OCFA/RE8 EMUC2/OC1/IC1/INT1/RD0 Note: Pinout subject to change. See specific device data sheet for the most current design information. DS70082G-page 4 Preliminary 2004 Microchip Technology Inc. dsPIC30F Pin Diagrams (Continued) 40-Pin PDIP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 dsPIC30F3011 MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/LVDIN/CN4/RB2 AN3/INDX/CN5/RB3 AN4/QEA/IC7/CN6/RB4 AN5/QEB/IC8/CN7/RB5 AN6/OCFA/RB6 AN7/RB7 AN8/RB8 VDD VSS OSC1/CLKI OSC2/CLKO/RC15 EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 FLTA/INT0/RE8 EMUD2/OC2/IC2/INT2/RD1 OC4/RD3 VSS 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 AVDD AVSS PWM1L/RE0 PWM1H/RE1 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 VDD VSS RF0 RF1 U2RX/RF4 U2TX/RF5 PGC/EMUC/U1RX/SDI1/SDA/RF2 PGD/EMUD/U1TX/SDO1/SCK/RF3 SCK1/RF6 EMUC2/OC1/IC1/INT1/RD0 OC3/RD2 VDD Note: Pinout subject to change. See specific device data sheet for the most current design information. 40-Pin PDIP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 dsPIC30F4011 MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/LVDIN/CN4/RB2 AN3/INDX/CN5/RB3 AN4/QEA/IC7/CN6/RB4 AN5/QEB/IC8/CN7/RB5 AN6/OCFA/RB6 AN7/RB7 AN8/RB8 VDD VSS OSC1/CLKI OSC2/CLKO/RC15 EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 FLTA/INT0/RE8 EMUD2/OC2/IC2/INT2/RD1 OC4/RD3 VSS 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 AVDD AVSS PWM1L/RE0 PWM1H/RE1 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 VDD VSS C1RX/RF0 C1TX/RF1 U2RX/RF4 U2TX/RF5 PGC/EMUC/U1RX/SDI1/SDA/RF2 PGD/EMUD/U1TX/SDO1/SCK/RF3 SCK1/RF6 EMUC2/OC1/IC1/INT1/RD0 OC3/RD2 VDD Note: Pinout subject to change. See specific device data sheet for the most current design information. 2004 Microchip Technology Inc. Preliminary DS70082G-page 5 dsPIC30F Pin Diagrams (Continued) 44 43 42 41 40 39 38 37 36 35 34 PGD/EMUD/U1TX/SDO1/SCL/RF3 SCK1/RF6 IC1/INT1/RD8 OC3/RD2 VDD VSS OC4/RD3 EMUD/OC2/IC2/INT2/RD1 FLTA/INT0/RE8 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 NC 44-Pin TQFP dsPIC30F3011 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 1 2 3 4 5 6 7 8 9 10 11 NC EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 OSC2/CLKO/RC15 OSC1/CLKI VSS VDD AN8/RB8 AN7/RB7 AN6/OCFA/RB6 AN5/QEB/IC8/CN7/RB5 AN4/QEA/IC7/CN6/RB4 NC NC PWM1H/RE1 PWM1L/RE0 AVSS AVDD MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 PGC/EMUC/U1RX/SDI1/SDA/RF2 U2TX/CN18/RF5 U2RX/CN17/RF4 RF1 RF0 VSS VDD PWM3H/RE5 PWM3L/RE4 PWM2H/RE3 PWM2L/RE2 Note: Pinout subject to change. See specific device data sheet for the most current design information. DS70082G-page 6 Preliminary 2004 Microchip Technology Inc. dsPIC30F Pin Diagrams (Continued) 44 43 42 41 40 39 38 37 36 35 34 PGD/EMUD/U1TX/SDO1/SCL/RF3 SCK1/RF6 EMUC2/OC1/IC1/INT1/RD0 OC3/RD2 VDD VSS OC4/RD3 EMUD2/OC2/IC2/INT2/RD1 FLTA/INT0/RE8 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 44-Pin QFN 1 2 3 4 5 6 7 8 9 10 11 dsPIC30F3011 33 32 31 30 29 28 27 26 25 24 23 OSC2/CLKO/RC15 OSC1/CLKI VSS VSS VDD VDD AN8/RB8 AN7/RB7 AN6/OCFA/RB6 AN5/QEB/IC8/CN7/RB5 AN4/QEA/IC7/CN6/RB4 PWM2L/RE2 NC PWM1H/RE1 PWM1L/RE0 AVSS AVDD MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 12 13 14 15 16 17 18 19 20 21 22 PGC/EMUC/U1RX/SDI1/SDA/RF2 U2TX/CN18/RF5 U2RX/CN17/RF4 RF1 RF0 VSS VDD VDD PWM3H/RE5 PWM3L/RE4 PWM2H/RE3 Note: Pinout subject to change. See specific device data sheet for the most current design information. 2004 Microchip Technology Inc. Preliminary DS70082G-page 7 dsPIC30F Pin Diagrams (Continued) 44 43 42 41 40 39 38 37 36 35 34 PGD/EMUD/U1TX/SDO1/SCL/RF3 SCK1/RF6 EMUC2/OC1/IC1/INT1/RD0 OC3/RD2 VDD VSS OC4/RD3 EMUD2/OC2/IC2/INT2/RD1 FLTA/INT0/RE8 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 NC 44-Pin TQFP dsPIC30F4011 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 1 2 3 4 5 6 7 8 9 10 11 NC EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 OSC2/CLKO/RC15 OSC1/CLKIN VSS VDD AN8/RB8 AN7/RB7 AN6/OCFA/RB6 AN5/QEB/IC8/CN7/RB5 AN4/QEA/IC7/CN6/RB4 NC NC PWM1H/RE1 PWM1L/RE0 AVSS AVDD MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 PGC/EMUC/U1RX/SDI1/SDA/RF2 U2TX/CN18/RF5 U2RX/CN17/RF4 CTX1/RF1 CRX1/RF0 VSS VDD PWM3H/RE5 PWM3L/RE4 PWM2H/RE3 PWM2L/RE2 Note: Pinout subject to change. See specific device data sheet for the most current design information. DS70082G-page 8 Preliminary 2004 Microchip Technology Inc. dsPIC30F Pin Diagrams (Continued) 44 43 42 41 40 39 38 37 36 35 34 PGD/EMUD/U1TX/SDO1/SCL/RF3 SCK1/RF6 EMUC2/OC1/IC1/INT1/RD0 OC3/RD2 VDD VSS OC4/RD3 EMUD2/OC2/IC2/INT2/RD1 FLTA/INT0/RE8 EMUC1/SOSCO/T1CK/U1ARX/CN0/RC14 EMUD1/SOSCI/T2CK/U1ATX/CN1/RC13 44-Pin QFN 1 2 3 4 5 6 7 8 9 10 11 dsPIC30F4011 33 32 31 30 29 28 27 26 25 24 23 OSC2/CLKO/RC15 OSC1/CLKIN VSS VSS VDD VDD AN8/RB8 AN7/RB7 AN6/OCFA/RB6 AN5/QEB/IC8/CN7/RB5 AN4/QEA/IC7/CN6/RB4 PWM2L/RE2 NC PWM1H/RE1 PWM1L/RE0 AVSS AVDD MCLR EMUD3/AN0/VREF+/CN2/RB0 EMUC3/AN1/VREF-/CN3/RB1 AN2/SS1/CN4/RB2 AN3/INDX/CN5/RB3 12 13 14 15 16 17 18 19 20 21 22 PGC/EMUC/U1RX/SDI1/SDA/RF2 U2TX/CN18/RF5 U2RX/CN17/RF4 CTX1/RF1 CRX1/RF0 VSS VDD VDD PWM3H/RE5 PWM3L/RE4 PWM2H/RE3 Note: Pinout subject to change. See specific device data sheet for the most current design information. 2004 Microchip Technology Inc. Preliminary DS70082G-page 9 dsPIC30F Pin Diagrams (Continued) 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 PWM3L/RE4 PWM2H/RE3 PWM2L/RE2 PWM1H/RE1 PWM1L/RE0 CTX1/RF1 CRX1/RF0 VDD VSS CN16/UPDN/RD7 CN15/RD6 CN14/RD5 CN13/RD4 OC4/RD3 OC3/RD2 EMUD2/OC2/RD1 64-Pin TQFP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 dsPIC30F5015 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 EMUC1/SOSCO/T1CK/CN0/RC14 EMUD1/SOSCI/T4CK/CN1/RC13 EMUC2/OC1/RD0 INT4/RD11 INT3/RD10 IC2/FLTB/INT2/RD9 IC1/FLTA/INT1/RD8 VSS OSC2/CLKO/RC15 OSC1/CLKIN VDD SCL/RG2 SDA/RG3 EMUC3/SCK1/INT0/RF6 U1RX/SDI1/RF2 EMUD3/U1TX/SDO1/RF3 PGC/EMUC/AN6/OCFA/RB6 PGD/EMUD/AN7/RB7 AVDD AVSS AN8/RB8 AN9/RB9 AN10/RB10 AN11/RB11 VSS VDD AN12/RB12 AN13/RB13 AN14/RB14 AN15/OCFB/CN12/RB15 CN17/RF4 CN18/RF5 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PWM3H/RE5 PWM4L/RE6 PWM4H/RE7 SCK2/CN8/RG6 SDI2/CN9/RG7 SDO2/CN10/RG8 MCLR SS2/CN11/RG9 VSS VDD AN5/QEB/IC8/CN7/RB5 AN4/QEA/IC7/CN6/RB4 AN3/INDX/CN5/RB3 AN2/SS1/LVDIN/CN4/RB2 AN1/VREF-/CN3/RB1 AN0/VREF+/CN2/RB0 Note: Pinout subject to change. See specific device data sheet for the most current design information. DS70082G-page 10 Preliminary 2004 Microchip Technology Inc. dsPIC30F Pin Diagrams (Continued) IC5/RD12 OC4/RD3 OC3/RD2 EMUD2/OC2/RD1 OC6/CN14/RD5 OC5/CN13/RD4 IC6/CN19/RD13 OC7/CN15/RD6 C2RX/RG0 C2TX/RG1 C1TX/RF1 C1RX/RF0 VDD VSS OC8/CN16/UPDN/RD7 PWM2L/RE2 PWM1H/RE1 PWM1L/RE0 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 PWM3L/RE4 PWM2H/RE3 80-Pin TQFP PWM3H/RE5 1 60 EMUC1/SOSCO/T1CK/CN0/RC14 PWM4L/RE6 2 59 EMUD1/SOSCI/CN1/RC13 EMUC2/OC1/RD0 PWM4H/RE7 3 58 T2CK/RC1 T4CK/RC3 SCK2/CN8/RG6 4 57 5 56 IC4/RD11 IC3/RD10 6 55 IC2/RD9 SDI2/CN9/RG7 7 54 IC1/RD8 SDO2/CN10/RG8 MCLR 8 53 INT4/RA15 9 52 SS2/CN11/RG9 VSS 10 51 INT3/RA14 VSS VDD 12 49 OSC2/CLKO/RC15 OSC1/CLKI FLTA/INT1/RE8 13 48 VDD 14 47 SCL/RG2 15 46 SDA/RG3 FLTB/INT2/RE9 AN5/QEB/CN7/RB5 dsPIC30F6010 11 50 29 30 31 32 33 34 35 36 37 38 39 40 VSS VDD AN12/RB12 AN13/RB13 AN14/RB14 AN15/OCFB/CN12/RB15 IC7/CN20/RD14 IC8/CN21/RD15 U2RX/CN17/RF4 U2TX/CN18/RF5 28 AN11/RB11 27 AN9/RB9 AN10/RB10 26 AVSS U1TX/RF3 AN8/RB8 41 25 20 24 U1RX/RF2 PGD/EMUD/AN0/CN2/RB0 AVDD EMUD3/SDO1/RF8 42 VREF+/RA10 43 19 22 18 23 AN2/SS1/LVDIN/CN4/RB2 PGC/EMUC/AN1/CN3/RB1 VREF-/RA9 EMUC3/SCK1/INT0/RF6 SDI1/RF7 21 44 AN7/RB7 45 AN6/OCFA/RB6 16 17 AN4/QEA/CN6/RB4 AN3/INDX/CN5/RB3 Note: Pinout subject to change. See specific device data sheet for the most current design information. 2004 Microchip Technology Inc. Preliminary DS70082G-page 11 dsPIC30F Table of Contents 1.0 Device Overview .................................................................................................................................................................... 13 2.0 CPU Architecture Overview.................................................................................................................................................... 19 3.0 Memory Organization ............................................................................................................................................................. 31 4.0 Address Generator Units........................................................................................................................................................ 43 5.0 Interrupts ................................................................................................................................................................................ 51 6.0 Flash Program Memory.......................................................................................................................................................... 57 7.0 Data EEPROM Memory ......................................................................................................................................................... 63 8.0 I/O Ports ................................................................................................................................................................................. 67 9.0 Timer1 Module ....................................................................................................................................................................... 73 10.0 Timer2/3 Module .................................................................................................................................................................... 77 11.0 Timer4/5 Module ................................................................................................................................................................... 83 12.0 Input Capture Module............................................................................................................................................................. 87 13.0 Output Compare Module ........................................................................................................................................................ 91 14.0 Quadrature Encoder Interface (QEI) Module ......................................................................................................................... 95 15.0 Motor Control PWM Module ................................................................................................................................................. 101 16.0 SPITM Module ....................................................................................................................................................................... 111 17.0 I2C Module ........................................................................................................................................................................... 115 18.0 Universal Asynchronous Receiver Transmitter (UART) Module .......................................................................................... 123 19.0 CAN Module ......................................................................................................................................................................... 131 20.0 10-bit High Speed Analog-to-Digital Converter (A/D) Module .............................................................................................. 143 21.0 System Integration ............................................................................................................................................................... 151 22.0 Instruction Set Summary ...................................................................................................................................................... 165 23.0 Development Support........................................................................................................................................................... 173 24.0 Electrical Characteristics ...................................................................................................................................................... 179 25.0 Packaging Information.......................................................................................................................................................... 221 On-Line Support................................................................................................................................................................................. 239 Systems Information and Upgrade Hot Line ...................................................................................................................................... 239 Reader Response .............................................................................................................................................................................. 240 Product Identification System............................................................................................................................................................. 241 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@mail.microchip.com or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: * Microchip's Worldwide Web site; http://www.microchip.com * Your local Microchip sales office (see last page) * The Microchip Corporate Literature Center; U.S. FAX: (480) 792-7277 When contacting a sales office or the literature center, please specify which device, revision of silicon and data sheet (include literature number) you are using. Customer Notification System Register on our web site at www.microchip.com/cn to receive the most current information on all of our products. DS70082G-page 12 Preliminary 2004 Microchip Technology Inc. dsPIC30F 1.0 DEVICE OVERVIEW Figure 1-1 shows a sample device block diagram. Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). Note: This document contains device family specific information for the dsPIC30F family of Digital Signal Controller (DSC) devices. The dsPIC30F devices contain extensive Digital Signal Processor (DSP) functionality within a high performance 16-bit microcontroller (MCU) architecture. 2004 Microchip Technology Inc. Preliminary The device(s) depicted in this block diagram are representative of the corresponding device family. Other devices of the same family may vary in terms of number of pins and multiplexing of pin functions. Typically, smaller devices in the family contain a subset of the peripherals present in the device(s) shown in this diagram. DS70082G-page 13 dsPIC30F FIGURE 1-1: dsPIC30F6010 BLOCK DIAGRAM Y Data Bus X Data Bus 16 Interrupt Controller PSV & Table Data Access 24 Control Block 8 Data Latch Y Data RAM (4 Kbytes) Address Latch 16 24 24 Address Latch Data EEPROM (4 Kbytes) 16 VREF-/RA9 VREF+/RA10 INT3/RA14 INT4/RA15 PORTA PGD/EMUD/AN0/CN2/RB0 PGC/EMUC/AN1/CN3/RB1 AN2/SS1/LVDIN/CN4/RB2 AN3/INDX/CN5/RB3 AN4/QEA/CN6/RB4 AN5/QEB/CN7/RB5 AN6/OCFA/RB6 AN7/RB7 AN8/RB8 AN9/RB9 AN10/RB10 AN11/RB11 AN12/RB12 AN13/RB13 AN14/RB14 AN15/OCFB/CN12/RB15 16 X RAGU X WAGU Y AGU PCU PCH PCL Program Counter Loop Stack Control Control Logic Logic Data Latch X Data RAM (4 Kbytes) Address Latch 16 16 Program Memory (144 Kbytes) 16 16 16 Effective Address 16 Data Latch ROM Latch 16 24 PORTB T2CK/RC1 T4CK/RC3 EMUD1/SOSCI/CN1/RC13 EMUC1/SOSCO/T1CK/CN0/RC14 OSC2/CLKO/RC15 IR 16 16 16 x 16 W Reg Array Decode PORTC Instruction Decode & Control 16 16 Control Signals to Various Blocks OSC1/CLKI DSP Engine Power-up Timer ALU<16> POR/BOR Reset MCLR VDD, VSS AVDD, AVSS SPI1, SPI2 Divide Unit Oscillator Start-up Timer Timing Generation CAN1, CAN2 EMUC2/OC1/RD0 EMUD2/OC2/RD1 OC3/RD2 OC4/RD3 OC5/CN13/RD4 OC6/CN14/RD5 OC7/CN15/RD6 OC8/CN16/UPDN/RD7 IC1/RD8 IC2/RD9 IC3/RD10 IC4/RD11 IC5/RD12 IC6/CN19/RD13 IC7/CN20/RD14 IC8/CN21/RD15 Watchdog Timer Low Voltage Detect 16 16 PORTD 10-bit ADC Input Capture Module Output Compare Module I C Timers QEI Motor Control PWM UART1, UART2 PWM1L/RE0 PWM1H/RE1 PWM2L/RE2 PWM2H/RE3 PWM3L/RE4 PWM3H/RE5 PWM4L/RE6 PWM4H/RE7 FLTA/INT1/RE8 FLTB/INT2/RE9 2 PORTE C1RX/RF0 C1TX/RF1 U1RX/RF2 U1TX/RF3 U2RX/CN17/RF4 U2TX/CN18/RF5 EMUC3/SCK1/INT0/RF6 SDI1/RF7 EMUD3/SDO1/RF8 C2RX/RG0 C2TX/RG1 SCL/RG2 SDA/RG3 SCK2/CN8/RG6 SDI2/CN9/RG7 SDO2/CN10/RG8 SS2/CN11/RG9 PORTG DS70082G-page 14 Preliminary PORTF 2004 Microchip Technology Inc. dsPIC30F Table 1-1 provides a brief description of device I/O pinouts and the functions that may be multiplexed to a port pin. Multiple functions may exist on one port pin. When multiplexing occurs, the peripheral module's functional requirements may force an override of the data direction of the port pin. TABLE 1-1: PINOUT I/O DESCRIPTIONS Pin Type Buffer Type AN0-AN15 I Analog AVDD P P Positive supply for analog module. AVSS P P Ground reference for analog module. CLKI CLKO I O CN0-CN23 I ST Input change notification inputs. Can be software programmed for internal weak pull-ups on all inputs. COFS CSCK CSDI CSDO I/O I/O I O ST ST ST -- Data Converter Interface frame synchronization pin. Data Converter Interface serial clock input/output pin. Data Converter Interface serial data input pin. Data Converter Interface serial data output pin. C1RX C1TX C2RX C2TX I O I O ST -- ST -- CAN1 bus receive pin. CAN1 bus transmit pin. CAN2 bus receive pin. CAN2 bus transmit pin. EMUD EMUC EMUD1 EMUC1 EMUD2 EMUC2 EMUD3 EMUC3 I/O I/O I/O I/O I/O I/O I/O I/O ST ST ST ST ST ST ST ST ICD Primary Communication Channel data input/output pin. ICD Primary Communication Channel clock input/output pin. ICD Secondary Communication Channel data input/output pin. ICD Secondary Communication Channel clock input/output pin. ICD Tertiary Communication Channel data input/output pin. ICD Tertiary Communication Channel clock input/output pin. ICD Quaternary Communication Channel data input/output pin. ICD Quaternary Communication Channel clock input/output pin. Pin Name Description Analog input channels. AN0 and AN1 are also used for device programming data and clock inputs, respectively. ST/CMOS External clock source input. Always associated with OSC1 pin function. -- Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode. Optionally functions as CLKO in RC and EC modes. Always associated with OSC2 pin function. IC1-IC8 I ST Capture inputs 1 through 8. INDX QEA I I ST ST QEB I ST UPDN O CMOS Quadrature Encoder Index Pulse input. Quadrature Encoder Phase A input in QEI mode. Auxiliary Timer External Clock/Gate input in Timer mode. Quadrature Encoder Phase A input in QEI mode. Auxiliary Timer External Clock/Gate input in Timer mode. Position Up/Down Counter Direction State. INT0 INT1 INT2 INT3 INT4 I I I I I ST ST ST ST ST LVDIN I Analog Legend: CMOS = ST = I = External interrupt 0. External interrupt 1. External interrupt 2. External interrupt 3. External interrupt 4. Low Voltage Detect Reference Voltage input pin. CMOS compatible input or output Schmitt Trigger input with CMOS levels Input 2004 Microchip Technology Inc. Analog = O = P = Preliminary Analog input Output Power DS70082G-page 15 dsPIC30F TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED) Pin Type Buffer Type FLTA FLTB PWM1L PWM1H PWM2L PWM2H PWM3L PWM3H PWM4L PWM4H I I O O O O O O O O ST ST -- -- -- -- -- -- -- -- PWM Fault A input. PWM Fault B input. PWM 1 Low output. PWM 1 High output. PWM 2 Low output. PWM 2 High output. PWM 3 Low output. PWM 3 High output. PWM 4 Low output. PWM 4 High output. MCLR I/P ST Master Clear (Reset) input or programming voltage input. This pin is an active low Reset to the device. OCFA OCFB OC1-OC8 I I O ST ST -- Compare Fault A input (for Compare channels 1, 2, 3 and 4). Compare Fault B input (for Compare channels 5, 6, 7 and 8). Compare outputs 1 through 8. OSC1 OSC2 I I/O PGD PGC I/O I ST ST In-Circuit Serial Programming data input/output pin. In-Circuit Serial Programming clock input pin. RA9-RA10 RA14-RA15 I/O I/O ST ST PORTA is a bi-directional I/O port. RB0-RB15 I/O ST PORTB is a bi-directional I/O port. RC1 RC3 RC13-RC15 I/O I/O I/O ST ST ST PORTC is a bi-directional I/O port. RD0-RD15 I/O ST PORTD is a bi-directional I/O port. RE0-RE9 I/O ST PORTE is a bi-directional I/O port. RF0-RF8 I/O ST PORTF is a bi-directional I/O port. RG0-RG3 RG6-RG9 I/O I/O ST ST PORTG is a bi-directional I/O port. SCK1 SDI1 SDO1 SS1 SCK2 SDI2 SDO2 SS2 I/O I O I I/O I O I ST ST -- ST ST ST -- ST Synchronous serial clock input/output for SPI1. SPI1 Data In. SPI1 Data Out. SPI1 Slave Synchronization. Synchronous serial clock input/output for SPI2. SPI2 Data In. SPI2 Data Out. SPI2 Slave Synchronization. SCL SDA I/O I/O ST ST Synchronous serial clock input/output for I2C. Synchronous serial data input/output for I2C. SOSCO SOSCI O I Pin Name Legend: CMOS = ST = I = DS70082G-page 16 Description ST/CMOS Oscillator crystal input. ST buffer when configured in RC mode; CMOS other-- wise. Oscillator crystal output. Connects to crystal or resonator in Crystal Oscillator mode. Optionally functions as CLKO in RC and EC modes. -- 32 kHz low power oscillator crystal output. ST/CMOS 32 kHz low power oscillator crystal input. ST buffer when configured in RC mode; CMOS otherwise. CMOS compatible input or output Schmitt Trigger input with CMOS levels Input Analog = O = P = Preliminary Analog input Output Power 2004 Microchip Technology Inc. dsPIC30F TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED) Pin Type Buffer Type T1CK T2CK T3CK T4CK T5CK I I I I I ST ST ST ST ST Timer1 external clock input. Timer2 external clock input. Timer3 external clock input. Timer4 external clock input. Timer5 external clock input. U1RX U1TX U1ARX U1ATX U2RX U2TX I O I O I O ST -- ST -- ST -- UART1 Receive. UART1 Transmit. UART1 Alternate Receive. UART1 Alternate Transmit. UART2 Receive. UART2 Transmit. VDD P -- Positive supply for logic and I/O pins. VSS P -- Ground reference for logic and I/O pins. VREF+ I Analog Analog Voltage Reference (High) input. Analog Analog Voltage Reference (Low) input. Pin Name VREFLegend: I CMOS = ST = I = Description CMOS compatible input or output Schmitt Trigger input with CMOS levels Input 2004 Microchip Technology Inc. Analog = O = P = Preliminary Analog input Output Power DS70082G-page 17 dsPIC30F NOTES: DS70082G-page 18 Preliminary 2004 Microchip Technology Inc. dsPIC30F 2.0 CPU ARCHITECTURE OVERVIEW Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). 2.1 Core Overview The core has a 24-bit instruction word. The Program Counter (PC) is 23 bits wide with the Least Significant (LS) bit always clear (see Section 3.1), and the Most Significant (MS) bit is ignored during normal program execution, except for certain specialized instructions. Thus, the PC can address up to 4M instruction words of user program space. An instruction pre-fetch mechanism is used to help maintain throughput. Program loop constructs, free from loop count management overhead, are supported using the DO and REPEAT instructions, both of which are interruptible at any point. The working register array consists of 16x16-bit registers, each of which can act as data, address or offset registers. One working register (W15) operates as a software stack pointer for interrupts and calls. The data space is 64 Kbytes (32K words) and is split into two blocks, referred to as X and Y data memory. Each block has its own independent Address Generation Unit (AGU). Most instructions operate solely through the X memory AGU, which provides the appearance of a single unified data space. The Multiply-Accumulate (MAC) class of dual source DSP instructions operate through both the X and Y AGUs, splitting the data address space into two parts (see Section 3.2). The X and Y data space boundary is device specific and cannot be altered by the user. Each data word consists of 2 bytes, and most instructions can address data either as words or bytes. There are two methods of accessing data stored in program memory: * The upper 32 Kbytes of data space memory can be mapped into the lower half (user space) of program space at any 16K program word boundary, defined by the 8-bit Program Space Visibility Page (PSVPAG) register. This lets any instruction access program space as if it were data space, with a limitation that the access requires an additional cycle. Moreover, only the lower 16 bits of each instruction word can be accessed using this method. * Linear indirect access of 32K word pages within program space is also possible using any working register, via table read and write instructions. Table read and write instructions can be used to access all 24 bits of an instruction word. 2004 Microchip Technology Inc. Overhead-free circular buffers (modulo addressing) are supported in both X and Y address spaces. This is primarily intended to remove the loop overhead for DSP algorithms. The X AGU also supports bit-reversed addressing on destination effective addresses, to greatly simplify input or output data reordering for radix-2 FFT algorithms. Refer to Section 4.0 for details on modulo and bit-reversed addressing. The core supports Inherent (no operand), Relative, Literal, Memory Direct, Register Direct, Register Indirect, Register Offset and Literal Offset Addressing modes. Instructions are associated with predefined Addressing modes, depending upon their functional requirements. For most instructions, the core is capable of executing a data (or program data) memory read, a working register (data) read, a data memory write and a program (instruction) memory read per instruction cycle. As a result, 3-operand instructions are supported, allowing C = A+B operations to be executed in a single cycle. A DSP engine has been included to significantly enhance the core arithmetic capability and throughput. It features a high speed 17-bit by 17-bit multiplier, a 40-bit ALU, two 40-bit saturating accumulators and a 40-bit bi-directional barrel shifter. Data in the accumulator or any working register can be shifted up to 15 bits right or 16 bits left in a single cycle. The DSP instructions operate seamlessly with all other instructions and have been designed for optimal real-time performance. The MAC class of instructions can concurrently fetch two data operands from memory, while multiplying two W registers. To enable this concurrent fetching of data operands, the data space has been split for these instructions and linear for all others. This has been achieved in a transparent and flexible manner, by dedicating certain working registers to each address space for the MAC class of instructions. The core does not support a multi-stage instruction pipeline. However, a single stage instruction pre-fetch mechanism is used, which accesses and partially decodes instructions a cycle ahead of execution, in order to maximize available execution time. Most instructions execute in a single cycle, with certain exceptions as outlined in Section 2.3. The core features a vectored exception processing structure for traps and interrupts, with 62 independent vectors. The exceptions consist of up to 8 traps (of which 4 are reserved) and 54 interrupts. Each interrupt is prioritized based on a user assigned priority between 1 and 7 (1 being the lowest priority and 7 being the highest) in conjunction with a predetermined `natural order'. Traps have fixed priorities, ranging from 8 to 15. Preliminary DS70082G-page 19 dsPIC30F 2.2 Programmer's Model 2.2.2 The programmer's model is shown in Figure 2-1 and consists of 16x16-bit working registers (W0 through W15), 2x40-bit accumulators (AccA and AccB), STATUS register (SR), Data Table Page register (TBLPAG), Program Space Visibility Page register (PSVPAG), DO and REPEAT registers (DOSTART, DOEND, DCOUNT and RCOUNT), and Program Counter (PC). The working registers can act as data, address or offset registers. All registers are memory mapped. W0 acts as the W register for file register addressing. Some of these registers have a shadow register associated with each of them, as shown in Figure 2-1. The shadow register is used as a temporary holding register and can transfer its contents to or from its host register upon the occurrence of an event. None of the shadow registers are accessible directly. The following rules apply for transfer of registers into and out of shadows. SOFTWARE STACK POINTER/ FRAME POINTER In order to protect against misaligned stack accesses, W15<0> is always clear. W15 is initialized to 0x0800 during a Reset. The user may reprogram the SP during initialization to any location within data space. W14 has been dedicated as a stack frame pointer as defined by the LNK and ULNK instructions. However, W14 can be referenced by any instruction in the same manner as all other W registers. DS70082G-page 20 The upper byte of the STATUS register contains the DSP Adder/Subtractor status bits, the DO Loop Active bit (DA) and the Digit Carry (DC) status bit. Most SR bits are read/write. Exceptions are: 1. The DA bit: DA is read and clear only, because accidentally setting it could cause erroneous operation. The RA bit: RA is a read only bit, because accidentally setting it could cause erroneous operation. RA is only set on entry into a repeat loop, and cannot be directly cleared by software. The OV, OA, OB and OAB bits: These bits are read only and can only be set by the DSP engine overflow logic. The SA, SB and SAB bits: These are read and clear only and can only be set by the DSP engine saturation logic. Once set, these flags remain set until cleared by the user, irrespective of the results from any subsequent DSP operations. 4. Note 1: Clearing the SAB bit will also clear both the SA and SB bits. The dsPIC(R) devices contain a software stack. W15 is the dedicated software stack pointer (SP), and will be automatically modified by exception processing and subroutine calls and returns. However, W15 can be referenced by any instruction in the same manner as all other W registers. This simplifies the reading, writing and manipulation of the stack pointer (e.g., creating stack frames). Note: SRL contains all the MCU ALU operation status flags (including the Z bit), as well as the CPU Interrupt Priority Level status bits, IPL<2:0>, and the REPEAT active status bit, RA. During exception processing, SRL is concatenated with the MS Byte of the PC to form a complete word value which is then stacked. 3. When a byte operation is performed on a working register, only the Least Significant Byte of the target register is affected. However, a benefit of memory mapped working registers is that both the Least and Most Significant Bytes can be manipulated through byte wide data memory space accesses. 2.2.1 The dsPIC core has a 16-bit status register (SR), the LS Byte of which is referred to as the SR Low Byte (SRL) and the MS Byte as the SR High Byte (SRH). See Figure 2-1 for SR layout. 2. * PUSH.S and POP.S W0, W1, W2, W3, SR (DC, N, OV, Z and C bits only) are transferred. * DO instruction DOSTART, DOEND, DCOUNT shadows are pushed on loop start, and popped on loop end. STATUS REGISTER 2: When the memory mapped status register (SR) is the destination address for an operation which affects any of the SR bits, data writes are disabled to all bits. 2.2.2.1 Z Status Bit Instructions that use a carry/borrow input (ADDC, CPB, SUBB and SUBBR) will only be able to clear Z (for a non-zero result) and can never set it. A multiprecision sequence of instructions, starting with an instruction with no carry/borrow input, will thus automatically logically AND the successive results of the zero test. All results must be zero for the Z flag to remain set by the end of the sequence. All other instructions can set as well as clear the Z bit. 2.2.3 PROGRAM COUNTER The Program Counter is 23 bits wide. Bit 0 is always clear. Therefore, the PC can address up to 4M instruction words. Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 2-1: PROGRAMMER'S MODEL D15 D0 W0/WREG PUSH.S Shadow W1 DO Shadow W2 W3 Legend W4 DSP Operand Registers W5 W6 W7 Working Registers W8 W9 DSP Address Registers W10 W11 W12/DSP Offset W13/DSP Write Back W14/Frame Pointer W15/Stack Pointer Stack Pointer Limit Register SPLIM AD39 AD15 AD31 AD0 AccA DSP Accumulators AccB PC22 PC0 Program Counter 0 0 7 TABPAG TBLPAG 7 Data Table Page Address 0 PSVPAG Program Space Visibility Page Address 15 0 RCOUNT REPEAT Loop Counter 15 0 DCOUNT DO Loop Counter 22 0 DOSTART DO Loop Start Address DOEND DO Loop End Address 22 15 0 Core Configuration Register CORCON OA OB SA SB OAB SAB DA SRH 2004 Microchip Technology Inc. DC IPL2 IPL1 IPL0 RA N OV Z C Status Register SRL Preliminary DS70082G-page 21 dsPIC30F 2.3 Instruction Flow There are 8 types of instruction flows: 1. Normal one-word, one-cycle instructions: these instructions take one effective cycle to execute, as shown in Figure 2-2. FIGURE 2-2: INSTRUCTION PIPELINE FLOW: 1-WORD, 1-CYCLE TCY0 1. MOV.b #0x55,W0 Fetch 1 TCY1 TCY4 TCY5 TCY4 TCY5 Execute 2 Fetch 3 3. ADD.b W0,W1,W2 2. TCY3 Execute 1 Fetch 2 2. MOV.b #0x35,W1 TCY2 Execute 3 One-word, two-cycle (or three-cycle) instructions that are flow control instructions: these instructions include the relative branches, relative call, skips and returns. When an instruction changes the PC (other than to increment it), the pipeline fetch is discarded. This causes the instruction to take two effective cycles to execute as shown in Figure 2-3. Some instructions that change program flow require 3 cycles, such as the RETURN, RETFIE and RETLW instructions, and instructions that skip over 2-word instructions. FIGURE 2-3: INSTRUCTION PIPELINE FLOW: 1-WORD, 2-CYCLE TCY0 1. MOV #0x55,W0 Fetch 1 2. BTSC W1,#3 3. ADD W0,W1,W2 TCY1 TCY2 Execute 1 Fetch 2 Execute 2 Skip Taken Fetch 3 Flush Fetch 4 4. BRA SUB_1 Execute 4 Fetch 5 5. SUB W0,W1,W3 Flush Fetch SUB_1 6. Instruction @ address SUB_1 DS70082G-page 22 TCY3 Preliminary 2004 Microchip Technology Inc. dsPIC30F 3. One-word, two-cycle instructions that are not flow control instructions: the only instructions of this type are the MOV.D (load and store double word) instructions, as shown in Figure 2-4. FIGURE 2-4: INSTRUCTION PIPELINE FLOW: 1-WORD, 2-CYCLE MOV.D OPERATIONS TCY0 Fetch 1 1. MOV W0,0x1234 TCY1 Fetch 2 2. MOV.D [W0++],W1 TCY2 TCY3 TCY4 TCY5 Execute 1 Execute 2 R/W Cycle 1 Fetch 3 3. MOV W1,0x00AA Execute 2 R/W Cycle2 Stall 3a.Stall Fetch 4 4. MOV 0x0CC, W0 4. Execute 4 Table read/write instructions. These instructions will suspend the fetching to insert a read or write cycle to the program memory. The instruction fetched, while executing the table operation, is saved for 1 cycle and executed in the cycle immediately after the table operation, as shown in Figure 2-5. FIGURE 2-5: INSTRUCTION PIPELINE FLOW: 1-WORD, 2-CYCLE TABLE OPERATIONS TCY0 Fetch 1 1. MOV #0x1234,W0 TCY1 TCY2 TCY3 TCY4 TCY5 Execute 1 Fetch 2 2. TBLRDL [W0++],W1 Execute 2 Fetch 3 3. MOV #0x00AA,W1 Execute 2 Read Cycle Bus Read 3a.Table Operation Execute 3 Fetch 4 4. MOV #0x0CC,W0 5. Execute 3 Execute 4 Two-word instructions for CALL and GOTO. In these instructions, the fetch after the instruction provides the remainder of the jump or call destination address. These instructions require 2 cycles to execute, 1 cycle to fetch the 2 instruction words (enabled by a high speed path on the second fetch), and 1 cycle to flush the pipeline, as shown in Figure 2-6. FIGURE 2-6: INSTRUCTION PIPELINE FLOW: 2-WORD, 2-CYCLE GOTO, CALL TCY0 1. MOV #0x1234,W0 Fetch 1 2. GOTO LABEL 2a.Second Word TCY1 TCY2 TCY4 TCY5 Execute 1 Fetch 2L Update PC Fetch 2H NOP Fetch LABEL 3. Instruction @ address LABEL Execute LABEL Fetch 4 4. BSET W1, #BIT3 2004 Microchip Technology Inc. TCY3 Preliminary Execute 4 DS70082G-page 23 dsPIC30F 6. Two-word instructions for DO. In these instructions, the fetch after the instruction contains an address offset. This address offset is added to the first instruction address to generate the last loop instruction address. Therefore, these instructions require 2 cycles, as shown in Figure 2-7. FIGURE 2-7: INSTRUCTION PIPELINE FLOW: 2-WORD, 2-CYCLE DO, DOW TCY0 Fetch 1 1. PUSH DOEND TCY1 Execute 2 Fetch 3 3. 1st Instruction of Loop Execute 3 Instructions that are subjected to a stall due to a data dependency between the X RAGU and X WAGU. An additional cycle is inserted to resolve the resource conflict, as shown in Figure 2-8. Instruction stalls caused by data dependencies are further discussed in Section 4.0. FIGURE 2-8: INSTRUCTION PIPELINE FLOW: 1-WORD, 2-CYCLE WITH INSTRUCTION STALL 1. MOV.b W0,[W1] 2. MOV.b [W1],PORTB TCY0 TCY1 TCY2 Fetch 1 Execute 1 Fetch 2 Stall DS70082G-page 24 TCY4 TCY5 Execute 2 Fetch 3 3. MOV.b W0,PORTB Interrupt recognition execution. Refer Section 5.0 for details on interrupts. TCY3 NOP 2a.Stall (NOP) 8. TCY4 NOP Fetch 2H 2a.Second Word 7. TCY3 Execute 1 Fetch 2L 2. DO LABEL,#COUNT TCY2 Execute 3 to Preliminary 2004 Microchip Technology Inc. dsPIC30F 2.4 Divide Support The dsPIC devices feature a 16/16-bit signed fractional divide operation, as well as 32/16-bit and 16/16-bit signed and unsigned integer divide operations, in the form of single instruction iterative divides. The following instructions and data sizes are supported: 1. 2. 3. 4. 5. DIVF - 16/16 signed fractional divide DIV.sd - 32/16 signed divide DIV.ud - 32/16 unsigned divide DIV.sw - 16/16 signed divide DIV.uw - 16/16 unsigned divide The 16/16 divides are similar to the 32/16 (same number of iterations), but the dividend is either zero-extended or sign-extended during the first iteration. The quotient for all divide instructions is stored in W0, and the remainder in W1. DIV and DIVF can specify any W register for both the 16-bit dividend and divisor. All other divides can specify any W register for the 16-bit divisor, but the 32-bit dividend must be in an aligned W register pair, such as W1:W0, W3:W2, etc. TABLE 2-1: The non-restoring divide algorithm requires one cycle for an initial dividend shift (for integer divides only), one cycle per divisor bit, and a remainder/quotient correction cycle. The correction cycle is the last cycle of the iteration loop, but must be performed (even if the remainder is not required) because it may also adjust the quotient. A consequence of this is that DIVF will also produce a valid remainder (though it is of little use in fractional arithmetic). The divide instructions must be executed within a REPEAT loop. Any other form of execution (e.g. a series of discrete divide instructions) will not function correctly because the instruction flow depends on RCOUNT. The divide instruction does not automatically set up the RCOUNT value, and it must, therefore, be explicitly and correctly specified in the REPEAT instruction, as shown in Table 2-1 (REPEAT will execute the target instruction {operand value+1} times). The REPEAT loop count must be set up for 18 iterations of the DIV/DIVF instruction. Thus, a complete divide operation requires 19 cycles. Note: The Divide flow is interruptible. However, the user needs to save the context as appropriate. DIVIDE INSTRUCTIONS Instruction Function DIVF Signed fractional divide: Wm/Wn W0; Rem W1 DIV.sd Signed divide: (Wm+1:Wm)/Wn W0; Rem W1 DIV.sw (or DIV.s) Signed divide: Wm/Wn W0; Rem W1 DIV.ud Unsigned divide: (Wm+1:Wm)/Wn W0; Rem W1 DIV.uw (or DIV.u) Unsigned divide: Wm/Wn W0; Rem W1 2004 Microchip Technology Inc. Preliminary DS70082G-page 25 dsPIC30F 2.5 DSP Engine Concurrent operation of the DSP engine with MCU instruction flow is not possible, though both the MCU ALU and DSP engine resources may be used concurrently by the same instruction (e.g., ED and EDAC instructions). The DSP engine consists of a high speed 17-bit x 17-bit multiplier, a barrel shifter, and a 40-bit adder/ Subtractor (with two target accumulators, round and saturation logic). Data input to the DSP engine is derived from one of the following: 1. 2. 3. Directly from the W array (registers W4, W5, W6 or W7) via the X and Y data buses for the MAC class of instructions (MAC, MSC, MPY, MPY.N, ED, EDAC, CLR and MOVSAC). From the X bus for all other DSP instructions. From the X bus for all MCU instructions which use the barrel shifter. The DSP engine also has the capability to perform inherent accumulator-to-accumulator operations, which require no additional data. These instructions are ADD, SUB and NEG. The DSP engine has various options selected through various bits in the CPU Core Configuration Register (CORCON), as listed below: 1. 2. 3. 4. 5. 6. Fractional or integer DSP multiply (IF). Signed or unsigned DSP multiply (US). Conventional or convergent rounding (RND). Automatic saturation on/off for AccA (SATA). Automatic saturation on/off for AccB (SATB). Automatic saturation on/off for writes to data memory (SATDW). Accumulator Saturation mode selection (ACCSAT). 7. Note: For CORCON layout, see Table 4-3. A block diagram of the DSP engine is shown in Figure 2-9. Data output from the DSP engine is written to one of the following: 1. 2. 3. The target accumulator, as defined by the DSP instruction being executed. The X bus for MAC, MSC, CLR and MOVSAC accumulator writes, where the EA is derived from W13 only. (MPY, MPY.N, ED and EDAC do not offer an accumulator write option.) The X bus for all MCU instructions which use the barrel shifter. DS70082G-page 26 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 2-9: DSP ENGINE BLOCK DIAGRAM 40 S a 40 Round t 16 u Logic r a t e 40-bit Accumulator A 40-bit Accumulator B Carry/Borrow Out Carry/Borrow In Saturate Adder Negate 40 40 40 16 X Data Bus Barrel Shifter 40 Y Data Bus Sign-Extend 32 16 Zero Backfill 32 33 17-bit Multiplier/Scaler 16 16 To/From W Array 2004 Microchip Technology Inc. Preliminary DS70082G-page 27 dsPIC30F 2.5.1 MULTIPLIER When the multiplier is configured for fractional multiplication, the data is represented as a two's complement fraction, where the MSB is defined as a sign bit and the radix point is implied to lie just after the sign bit (QX format). The range of an N-bit two's complement fraction with this implied radix point is -1.0 to (1-21-N). For a 16-bit fraction, the Q15 data range is -1.0 (0x8000) to 0.999969482 (0x7FFF), including `0' and has a precision of 3.01518x10-5. In fractional mode, a 16x16 multiply operation generates a 1.31 product, which has a precision of 4.65661x10-10. The 17x17-bit multiplier is capable of signed or unsigned operation and can multiplex its output using a scaler to support either 1.31 fractional (Q31) or 32-bit integer results. The respective number representation formats are shown in Figure 2-10. Unsigned operands are zero-extended into the 17th bit of the multiplier input value. Signed operands are sign-extended into the 17th bit of the multiplier input value. The output of the 17x17-bit multiplier/scaler is a 33-bit value, which is sign-extended to 40 bits. Integer data is inherently represented as a signed two's complement value, where the MSB is defined as a sign bit. Generally speaking, the range of an N-bit two's complement integer is -2N-1 to 2N-1 - 1. For a 16-bit integer, the data range is -32768 (0x8000) to 32767 (0x7FFF), including `0' (see Figure 2-10). For a 32-bit integer, the data range is -2,147,483,648 (0x8000 0000) to 2,147,483,645 (0x7FFF FFFF). FIGURE 2-10: Certain multiply operations always operate on signed data. These include the MAC/MSC, MPY[.N] and ED[AC] instructions. The 40-bit adder/subtractor may also optionally negate one of its operand inputs to change the result sign (without changing the operands). This is used to create a multiply and subtract (MSC) or multiply and negate (MPY.N) operation. 16-BIT INTEGER AND FRACTIONAL MODES Different Representations of 0x4001 Integer: 0 2 0 1 2 14 0 2 13 0 2 0 12 0 0 0 0 0 0 0 0 0 0 1 20 11 2 .... 0x4001 = 214 + 20 = 16385 1.15 Fractional: 0 1 0 -20 2-1 2-2 0 0 0 0 0 0 0 0 0 0 0 0 1 2-15 2-3... 0x4001 = 2-1 + 2-15 = 0.500030518 In the special case when both input operands are 1.15 fractions and equal to 0x8000 (-110), the result of the multiplication is corrected to 0x7FFFFFFF (as the closest approximation to +1) by hardware, before it is used. It should be noted that with the exception of DSP multiplies, the dsPIC30F ALU operates identically on integer and fractional data. Namely, an addition of two integers will yield the same result (binary number) as the addition of two fractional numbers. The only difference is how the result is interpreted by the user. However, multiplies performed by DSP operations are different. In these instructions, data format selection is made with the IF bit (CORCON<0>) and US bits (CORCON<12>), and it must be set accordingly (`0' for Fractional mode, `1' for Integer mode in the case of the IF bit, and `0' for signed mode, `1' for unsigned mode in the case of the US bit). This is required because of the implied radix point used by dsPIC30F fractions. In Integer mode, multiplying two 16-bit integers produces a 32-bit integer result. However, multiplying two 1.15 values generates a 2.30 result. Since the dsPIC30F uses 1.31 format for the accumulators, DS70082G-page 28 a DSP multiply in Fractional mode also includes a left shift by one bit to keep the radix point properly aligned. This feature reduces the resolution of the DSP multiplier to 2-30, but has no other effect on the computation. The same multiplier is used to support the MCU multiply instructions, which include integer 16-bit signed, unsigned and mixed sign multiplies. Additional data paths are provided to allow these instructions to write the result back into the W array and X data bus (via the W array). These paths are placed prior to the data scaler. The IF bit in the CORCON register, therefore, only affects the result of the MAC class of DSP instructions. All other multiply operations are assumed to be integer operations. If the user executes a MAC instruction on fractional data without clearing the IF bit, the result must be explicitly shifted left by the user program after multiplication in order to obtain the correct result. Preliminary 2004 Microchip Technology Inc. dsPIC30F The MUL instruction may be directed to use byte or word sized operands. Byte operands will direct a 16-bit result, and word operands will direct a 32-bit result to the specified register(s) in the W array. 5. 2.5.2 The OA and OB bits are modified each time data passes through the adder/Subtractor. When set, they indicate that the most recent operation has overflowed into the accumulator guard bits (bits 32 through 39). The OA and OB bits can also optionally generate an arithmetic warning trap when set and the corresponding overflow trap flag enable bit (OVATEN, OVBTEN) in the INTCON1 register (refer to Section 5.0) is set. This allows the user to take immediate action, for example, to correct system gain. DATA ACCUMULATORS AND ADDER/SUBTRACTOR The data accumulator consists of a 40-bit adder/ subtractor with automatic sign extension logic. It can select one of two accumulators (A or B) as its preaccumulation source and post-accumulation destination. For the ADD and LAC instructions, the data to be accumulated or loaded can be optionally scaled via the barrel shifter, prior to accumulation. 2.5.2.1 Adder/Subtractor, Overflow and Saturation The adder/subtractor is a 40-bit adder with an optional zero input into one side and either true or complement data into the other input. In the case of addition, the carry/borrow input is active high and the other input is true data (not complemented), whereas in the case of subtraction, the carry/borrow input is active low and the other input is complemented. The adder/subtractor generates overflow status bits SA/SB and OA/OB, which are latched and reflected in the status register. * Overflow from bit 39: this is a catastrophic overflow in which the sign of the accumulator is destroyed. * Overflow into guard bits 32 through 39: this is a recoverable overflow. This bit is set whenever all the guard bits are not identical to each other. The adder has an additional saturation block which controls accumulator data saturation, if selected. It uses the result of the adder, the overflow status bits described above, and the SATA/B (CORCON<7:6>) and ACCSAT (CORCON<4>) mode control bits to determine when and to what value to saturate. 6. The SA and SB bits are modified each time data passes through the adder/subtractor, but can only be cleared by the user. When set, they indicate that the accumulator has overflowed its maximum range (bit 31 for 32-bit saturation, or bit 39 for 40-bit saturation) and will be saturated (if saturation is enabled). When saturation is not enabled, SA and SB default to bit 39 overflow and thus indicate that a catastrophic overflow has occurred. If the COVTE bit in the INTCON1 register is set, SA and SB bits will generate an arithmetic warning trap when saturation is disabled. The overflow and saturation status bits can optionally be viewed in the Status Register (SR) as the logical OR of OA and OB (in bit OAB) and the logical OR of SA and SB (in bit SAB). This allows programmers to check one bit in the Status Register to determine if either accumulator has overflowed, or one bit to determine if either accumulator has saturated. This would be useful for complex number arithmetic which typically uses both the accumulators. The device supports three Saturation and Overflow modes. 1. Six status register bits have been provided to support saturation and overflow; they are: 1. 2. 3. 4. OA: AccA overflowed into guard bits OB: AccB overflowed into guard bits SA: AccA saturated (bit 31 overflow and saturation) or AccA overflowed into guard bits and saturated (bit 39 overflow and saturation) SB: AccB saturated (bit 31 overflow and saturation) or AccB overflowed into guard bits and saturated (bit 39 overflow and saturation) 2004 Microchip Technology Inc. OAB: Logical OR of OA and OB SAB: Logical OR of SA and SB 2. Preliminary Bit 39 Overflow and Saturation: When bit 39 overflow and saturation occurs, the saturation logic loads the maximally positive 9.31 (0x7FFFFFFFFF) or maximally negative 9.31 value (0x8000000000) into the target accumulator. The SA or SB bit is set and remains set until cleared by the user. This is referred to as `super saturation' and provides protection against erroneous data or unexpected algorithm problems (e.g., gain calculations). Bit 31 Overflow and Saturation: When bit 31 overflow and saturation occurs, the saturation logic then loads the maximally positive 1.31 value (0x007FFFFFFF) or maximally negative 1.31 value (0x0080000000) into the target accumulator. The SA or SB bit is set and remains set until cleared by the user. When this Saturation mode is in effect, the guard bits are not used (so the OA, OB or OAB bits are never set). DS70082G-page 29 dsPIC30F 3. Bit 39 Catastrophic Overflow The bit 39 overflow status bit from the adder is used to set the SA or SB bit, which remain set until cleared by the user. No saturation operation is performed and the accumulator is allowed to overflow (destroying its sign). If the COVTE bit in the INTCON1 register is set, a catastrophic overflow can initiate a trap exception. 2.5.2.2 Accumulator `Write Back' The MAC class of instructions (with the exception of MPY, MPY.N, ED and EDAC) can optionally write a rounded version of the high word (bits 31 through 16) of the accumulator that is not targeted by the instruction into data space memory. The write is performed across the X bus into combined X and Y address space. The following addressing modes are supported: 1. 2. W13, Register Direct: The rounded contents of the non-target accumulator are written into W13 as a 1.15 fraction. [W13]+=2, Register Indirect with Post-Increment: The rounded contents of the non-target accumulator are written into the address pointed to by W13 as a 1.15 fraction. W13 is then incremented by 2 (for a word write). 2.5.2.3 The SAC and SAC.R instructions store either a truncated (SAC) or rounded (SAC.R) version of the contents of the target accumulator to data memory, via the X bus (subject to data saturation, see Section 2.5.2.4). Note that for the MAC class of instructions, the accumulator write back operation will function in the same manner, addressing combined MCU (X and Y) data space though the X bus. For this class of instructions, the data is always subject to rounding. Round Logic The round logic is a combinational block, which performs a conventional (biased) or convergent (unbiased) round function during an accumulator write (store). The Round mode is determined by the state of the RND bit in the CORCON register. It generates a 16-bit, 1.15 data value which is passed to the data space write saturation logic. If rounding is not indicated by the instruction, a truncated 1.15 data value is stored and the LS Word is simply discarded. Conventional rounding takes bit 15 of the accumulator, zero-extends it and adds it to the ACCxH word (bits 16 through 31 of the accumulator). If the ACCxL word (bits 0 through 15 of the accumulator) is between 0x8000 and 0xFFFF (0x8000 included), ACCxH is incremented. If ACCxL is between 0x0000 and 0x7FFF, ACCxH is left unchanged. A consequence of this algorithm is that over a succession of random rounding operations, the value will tend to be biased slightly positive. Convergent (or unbiased) rounding operates in the same manner as conventional rounding, except when ACCxL equals 0x8000. If this is the case, the LS bit (bit 16 of the accumulator) of ACCxH is examined. If it is `1', ACCxH is incremented. If it is `0', ACCxH is not modified. Assuming that bit 16 is effectively random in nature, this scheme will remove any rounding bias that may accumulate. DS70082G-page 30 2.5.2.4 Data Space Write Saturation In addition to adder/subtractor saturation, writes to data space may also be saturated, but without affecting the contents of the source accumulator. The data space write saturation logic block accepts a 16-bit, 1.15 fractional value from the round logic block as its input, together with overflow status from the original source (accumulator) and the 16-bit round adder. These are combined and used to select the appropriate 1.15 fractional value as output to write to data space memory. If the SATDW bit in the CORCON register is set, data (after rounding or truncation) is tested for overflow and adjusted accordingly. For input data greater than 0x007FFF, data written to memory is forced to the maximum positive 1.15 value, 0x7FFF. For input data less than 0xFF8000, data written to memory is forced to the maximum negative 1.15 value, 0x8000. The MS bit of the source (bit 39) is used to determine the sign of the operand being tested. If the SATDW bit in the CORCON register is not set, the input data is always passed through unmodified under all conditions. 2.5.3 BARREL SHIFTER The barrel shifter is capable of performing up to 15-bit arithmetic or logic right shifts, or up to 16-bit left shifts in a single cycle. The source can be either of the two DSP accumulators or the X bus (to support multi-bit shifts of register or memory data). The shifter requires a signed binary value to determine both the magnitude (number of bits) and direction of the shift operation. A positive value will shift the operand right. A negative value will shift the operand left. A value of `0' will not modify the operand. The barrel shifter is 40 bits wide, thereby obtaining a 40-bit result for DSP shift operations and a 16-bit result for MCU shift operations. Data from the X bus is presented to the barrel shifter between bit positions 16 to 31 for right shifts, and bit positions 0 to 15 for left shifts. Preliminary 2004 Microchip Technology Inc. dsPIC30F 3.0 MEMORY ORGANIZATION User program space access is restricted to the lower 4M instruction word address range (0x000000 to 0x7FFFFE), for all accesses other than TBLRD/TBLWT, which use TBLPAG<7> to determine user or configuration space access. In Table 3-1, Read/Write instructions, bit 23 allows access to the Device ID, the User ID and the configuration bits. Otherwise, bit 23 is always clear. Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). Note: 3.1 The address map shown in Figure 3-5 is conceptual, and the actual memory configuration may vary across individual devices depending on available memory. Program Address Space The program address space is 4M instruction words. It is addressable by a 24-bit value from either the 23-bit PC, table instruction EA, or data space EA, when program space is mapped into data space, as defined by Table 3-1. Note that the program space address is incremented by two between successive program words, in order to provide compatibility with data space addressing. TABLE 3-1: PROGRAM SPACE ADDRESS CONSTRUCTION Instruction Access TBLRD/TBLWT TBLRD/TBLWT Program Space Visibility FIGURE 3-1: Program Space Address <23> <22:16> <15> <14:1> 0 PC<22:1> TBLPAG<7:0> Data EA <15:0> Access Space Access Type User User (TBLPAG<7> = 0) Configuration (TBLPAG<7> = 1) User TBLPAG<7:0> 0 <0> 0 Data EA <15:0> PSVPAG<7:0> Data EA <14:0> DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION 23 bits Using Program Counter Program Counter 0 Select Using Program Space Visibility 0 1 0 EA PSVPAG Reg 8 bits 15 bits EA Using Table Instruction 1/0 TBLPAG Reg 8 bits User/ Configuration Space Select 16 bits 24-bit EA Byte Select Note: Program Space Visibility cannot be used to access bits <23:16> of a word in program memory. 2004 Microchip Technology Inc. Preliminary DS70082G-page 31 dsPIC30F 3.1.1 PROGRAM SPACE ALIGNMENT AND DATA ACCESS USING TABLE INSTRUCTIONS A set of Table Instructions are provided to move byte or word sized data to and from program space. 1. This architecture fetches 24-bit wide program memory. Consequently, instructions are always aligned. However, as the architecture is modified Harvard, data can also be present in program space. There are two methods by which program space can be accessed; via special table instructions, or through the remapping of a 16K word program space page into the upper half of data space (see Section 3.1.2). The TBLRDL and TBLWTL instructions offer a direct method of reading or writing the LS Word of any address within program space, without going through data space. The TBLRDH and TBLWTH instructions are the only method whereby the upper 8 bits of a program space word can be accessed as data. 2. 3. The PC is incremented by two for each successive 24-bit program word. This allows program memory addresses to directly map to data space addresses. Program memory can thus be regarded as two 16-bit word wide address spaces, residing side by side, each with the same address range. TBLRDL and TBLWTL access the space which contains the LS Data Word, and TBLRDH and TBLWTH access the space which contains the MS Data Byte. 4. TBLRDL: Table Read Low Word: Read the LS Word of the program address; P<15:0> maps to D<15:0>. Byte: Read one of the LS Bytes of the program address; P<7:0> maps to the destination byte when byte select = 0; P<15:8> maps to the destination byte when byte select = 1. TBLWTL: Table Write Low (refer to Section 6.0 for details on Flash Programming). TBLRDH: Table Read High Word: Read the MS Word of the program address; P<23:16> maps to D<7:0>; D<15:8> always be = 0. Byte: Read one of the MS Bytes of the program address; P<23:16> maps to the destination byte when byte select = 0; The destination byte will always be = 0 when byte select = 1. TBLWTH: Table Write High (refer to Section 6.0 for details on Flash Programming). Figure 3-1 shows how the EA is created for table operations and data space accesses (PSV = 1). Here, P<23:0> refers to a program space word, whereas D<15:0> refers to a data space word. FIGURE 3-2: PROGRAM DATA TABLE ACCESS (LS WORD) PC Address 0x000000 0x000002 0x000004 0x000006 Program Memory `Phantom' Byte (Read as `0'). DS70082G-page 32 23 16 8 0 00000000 00000000 00000000 00000000 TBLRDL.W TBLRDL.B (Wn<0> = 0) TBLRDL.B (Wn<0> = 1) Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 3-3: PROGRAM DATA TABLE ACCESS (MS BYTE) TBLRDH.W PC Address 0x000000 0x000002 0x000004 0x000006 23 16 8 0 00000000 00000000 00000000 00000000 TBLRDH.B (Wn<0> = 0) Program Memory `Phantom' Byte (Read as `0') 3.1.2 TBLRDH.B (Wn<0> = 1) PROGRAM SPACE VISIBILITY FROM DATA SPACE The upper 32 Kbytes of data space may optionally be mapped into any 16K word program space page. This provides transparent access of stored constant data from X data space, without the need to use special instructions (i.e., TBLRDL/H, TBLWTL/H instructions). Program space access through the data space occurs if the MS bit of the data space EA is set and program space visibility is enabled, by setting the PSV bit in the Core Control register (CORCON). The functions of CORCON are discussed in Section 2.5, DSP Engine. Data accesses to this area add an additional cycle to the instruction being executed, since two program memory fetches are required. Note that the upper half of addressable data space is always part of the X data space. Therefore, when a DSP operation uses program space mapping to access this memory region, Y data space should typically contain state (variable) data for DSP operations, whereas X data space should typically contain coefficient (constant) data. Although each data space address, 0x8000 and higher, maps directly into a corresponding program memory address (see Figure 3-4), only the lower 16-bits of the 24-bit program word are used to contain the data. The upper 8 bits should be programmed to force an illegal instruction to maintain machine robustness. Refer to the Programmer's Reference Manual (DS70030) for details on instruction encoding. 2004 Microchip Technology Inc. Note that by incrementing the PC by 2 for each program memory word, the LS 15 bits of data space addresses directly map to the LS 15 bits in the corresponding program space addresses. The remaining bits are provided by the Program Space Visibility Page register, PSVPAG<7:0>, as shown in Figure 3-4. Note: PSV access is temporarily disabled during Table Reads/Writes. For instructions that use PSV which are executed outside a REPEAT loop: * The following instructions will require one instruction cycle in addition to the specified execution time: - MAC class of instructions with data operand pre-fetch - MOV instructions - MOV.D instructions * All other instructions will require two instruction cycles in addition to the specified execution time of the instruction. For instructions that use PSV which are executed inside a REPEAT loop: * The following instances will require two instruction cycles in addition to the specified execution time of the instruction: - Execution in the first iteration - Execution in the last iteration - Execution prior to exiting the loop due to an interrupt - Execution upon re-entering the loop after an interrupt is serviced * Any other iteration of the REPEAT loop will allow the instruction, accessing data using PSV, to execute in a single cycle. Preliminary DS70082G-page 33 dsPIC30F FIGURE 3-4: DATA SPACE WINDOW INTO PROGRAM SPACE OPERATION Program Space Data Space 0x0000 EA<15> = 0 Data Space EA PSVPAG(1) 0x21 8 15 16 15 EA<15> = 1 0x8000 Address 15 Concatenation 23 0x108000 23 15 0 0x108200 Upper half of Data Space is mapped into Program Space 0x10FFFF 0xFFFF BSET MOV MOV MOV CORCON,#2 #0x21, W0 W0, PSVPAG 0x8200, W0 ; PSV bit set ; Set PSVPAG register ; Access program memory location ; using a data space access Data Read Note: PSVPAG is an 8-bit register, containing bits <22:15> of the program space address (i.e., it defines the page in program space to which the upper half of data space is being mapped). DS70082G-page 34 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 3-5: 3.2 SAMPLE PROGRAM SPACE MEMORY MAP Reset - GOTO Instruction Reset - Target Address 000000 000002 000004 Vector Tables Data Address Space The core has two data spaces. The data spaces can be considered either separate (for some DSP instructions), or as one unified linear address range (for MCU instructions). The data spaces are accessed using two Address Generation Units (AGUs) and separate data paths. Interrupt Vector Table User Memory Space 3.2.1 Reserved Alternate Vector Table User Flash Program Memory (48K instructions) Reserved (Read 0's) Data EEPROM (4 Kbytes) 00007E 000080 000084 0000FE 000100 017FFE 018000 7FEFFE 7FF000 7FFFFE 800000 Configuration Memory Space Reserved UNITID (32 instr.) 8005BE 8005C0 8005FE 800600 Reserved Device Configuration Registers F7FFFE F80000 F8000E F80010 Reserved DEVID (2) DATA SPACES The X data space is used by all instructions and supports all addressing modes. There are separate read and write data buses. The X read data bus is the return data path for all instructions that view data space as combined X and Y address space. It is also the X address space data path for the dual operand read instructions (MAC class). The X write data bus is the only write path to data space for all instructions. The X data space also supports Modulo Addressing for all instructions, subject to Addressing mode restrictions. Bit-Reversed Addressing is only supported for writes to X data space. The Y data space is used in concert with the X data space by the MAC class of instructions (CLR, ED, EDAC, MAC, MOVSAC, MPY, MPY.N and MSC) to provide two concurrent data read paths. No writes occur across the Y bus. This class of instructions dedicates two W register pointers, W10 and W11, to always address Y data space, independent of X data space, whereas W8 and W9 always address X data space. Note that during accumulator write back, the data address space is considered a combination of X and Y data spaces, so the write occurs across the X bus. Consequently, the write can be to any address in the entire data space. The Y data space can only be used for the data prefetch operation associated with the MAC class of instructions. It also supports Modulo Addressing for automated circular buffers. Of course, all other instructions can access the Y data address space through the X data path, as part of the composite linear space. The boundary between the X and Y data spaces is defined as shown in Figure 3-8 and is not user programmable. Should an EA point to data outside its own assigned address space, or to a location outside physical memory, an all-zero word/byte will be returned. For example, although Y address space is visible by all non-MAC instructions using any Addressing mode, an attempt by a MAC instruction to fetch data from that space, using W8 or W9 (X space pointers), will return 0x0000. FEFFFE FF0000 FFFFFE Note: These address boundaries may vary from one device to another. 2004 Microchip Technology Inc. Preliminary DS70082G-page 35 dsPIC30F TABLE 3-2: EFFECT OF INVALID MEMORY ACCESSES Attempted Operation FIGURE 3-6: EA = an unimplemented address 0x0000 W8 or W9 used to access Y data space in a MAC instruction 0x0000 W10 or W11 used to access X data space in a MAC instruction 0x0000 All effective addresses are 16 bits wide and point to bytes within the data space. Therefore, the data space address range is 64 Kbytes or 32K words. 3.2.2 DATA SPACE WIDTH The core data width is 16-bits. All internal registers are organized as 16-bit wide words. Data space memory is organized in byte addressable, 16-bit wide blocks. 3.2.3 DATA ALIGNMENT To help maintain backward compatibility with PICmicro(R) devices and improve data space memory usage efficiency, the dsPIC30F instruction set supports both word and byte operations. Data is aligned in data memory and registers as words, but all data space EAs resolve to bytes. Data byte reads will read the complete word, which contains the byte, using the LS bit of any EA to determine which byte to select. The selected byte is placed onto the LS Byte of the X data path (no byte accesses are possible from the Y data path as the MAC class of instruction can only fetch words). That is, data memory and registers are organized as two parallel byte wide entities with shared (word) address decode, but separate write lines. Data byte writes only write to the corresponding side of the array or register which matches the byte address. As a consequence of this byte accessibility, all effective address calculations (including those generated by the DSP operations, which are restricted to word sized data) are internally scaled to step through word aligned memory. For example, the core would recognize that Post-Modified Register Indirect Addressing mode, [Ws++], will result in a value of Ws+1 for byte operations and Ws+2 for word operations. All word accesses must be aligned to an even address. Mis-aligned word data fetches are not supported, so care must be taken when mixing byte and word operations, or translating from 8-bit MCU code. Should a misaligned read or write be attempted, an Address Error trap will be generated. If the error occurred on a read, the instruction underway is completed, whereas if it occurred on a write, the instruction will be executed but the write will not occur. In either case, a trap will then be executed, allowing the system and/or user to examine the machine state prior to execution of the address fault. DS70082G-page 36 15 Data Returned DATA ALIGNMENT MS Byte 87 LS Byte 0 0001 Byte 1 Byte 0 0000 0003 Byte 3 Byte 2 0002 0005 Byte 5 Byte 4 0004 All byte loads into any W register are loaded into the LS Byte. The MSB is not modified. A sign-extend (SE) instruction is provided to allow users to translate 8-bit signed data to 16-bit signed values. Alternatively, for 16-bit unsigned data, users can clear the MSB of any W register by executing a zero-extend (ZE) instruction on the appropriate address. Although most instructions are capable of operating on word or byte data sizes, it should be noted that some instructions, including the DSP instructions, operate only on words. 3.2.4 DATA SPACE MEMORY MAP The data space memory is split into two blocks, X and Y data space. A key element of this architecture is that Y space is a subset of X space, and is fully contained within X space. In order to provide an apparent linear addressing space, X and Y spaces have contiguous addresses. When executing any instruction other than one of the MAC class of instructions, the X block consists of the 64 Kbyte data address space (including all Y addresses). When executing one of the MAC class of instructions, the X block consists of the 64 Kbyte data address space excluding the Y address block (for data reads only). In other words, all other instructions regard the entire data memory as one composite address space. The MAC class instructions extract the Y address space from data space and address it using EAs sourced from W10 and W11. The remaining X data space is addressed using W8 and W9. Both address spaces are concurrently accessed only with the MAC class instructions. An example data space memory map is shown in Figure 3-8. Preliminary 2004 Microchip Technology Inc. dsPIC30F 3.2.5 NEAR DATA SPACE 3.2.6 An 8 Kbyte `near' data space is reserved in X address memory space between 0x0000 and 0x1FFF, which is directly addressable via a 13-bit absolute address field within all memory direct instructions. The remaining X address space and all of the Y address space is addressable indirectly. Additionally, the whole of X data space is addressable using MOV instructions, which support memory direct addressing with a 16-bit address field. The stack pointer always points to the first available free word and grows from lower addresses towards higher addresses. It pre-decrements for stack pops and post-increments for stack pushes, as shown in Figure 3-7. Note that for a PC push during any CALL instruction, the MSB of the PC is zero-extended before the push, ensuring that the MSB is always clear. Note: A PC push during exception processing will concatenate the SRL register to the MSB of the PC prior to the push. SOFTWARE STACK The dsPIC device contains a software stack. W15 is used as the Stack Pointer. There is a Stack Pointer Limit register (SPLIM) associated with the stack pointer. SPLIM is uninitialized at Reset. As is the case for the stack pointer, SPLIM<0> is forced to `0', because all stack operations must be word aligned. Whenever an effective address (EA) is generated using W15 as a source or destination pointer, the address thus generated is compared with the value in SPLIM. If the contents of the Stack Pointer (W15) and the SPLIM register are equal and a push operation is performed, a Stack Error Trap will not occur. The Stack Error Trap will occur on a subsequent push operation. Thus, for example, if it is desirable to cause a Stack Error Trap when the stack grows beyond address 0x2000 in RAM, initialize the SPLIM with the value, 0x1FFE. Similarly, a Stack Pointer Underflow (Stack Error) trap is generated when the stack pointer address is found to be less than 0x0800, thus preventing the stack from interfering with the Special Function Register (SFR) space. A write to the SPLIM register should not be immediately followed by an indirect read operation using W15. FIGURE 3-7: CALL STACK FRAME Stack Grows Towards Higher Address 0x0000 15 0 PC<15:0> 000000000PC<22:16> <Free Word> W15 (before CALL) W15 (after CALL) POP: [--W15] PUSH: [W15++] 2004 Microchip Technology Inc. Preliminary DS70082G-page 37 dsPIC30F FIGURE 3-8: SAMPLE DATA SPACE MEMORY MAP MS Byte Address MSB 2 Kbyte SFR Space 0x0001 LS Byte Address 16 bits LSB 0x0000 SFR Space 0x07FE 0x0800 0x07FF 0x0801 8 Kbyte Near Data Space X Data RAM (X) 8 Kbyte SRAM Space 0x17FF 0x1801 0x17FE 0x1800 0x1FFF 0x1FFE Y Data RAM (Y) 0x27FF 0x27FE 0x2801 0x2800 0x8001 0x8000 X Data Unimplemented (X) Optionally Mapped into Program Memory 0xFFFE 0xFFFF Note: The address map shown is conceptual, and may vary across individual devices depending on available memory. DS70082G-page 38 Preliminary 2004 Microchip Technology Inc. dsPIC30F DATA SPACE FOR MCU AND DSP (MAC CLASS) INSTRUCTIONS EXAMPLE SFR SPACE SFR SPACE X SPACE FIGURE 3-9: Y SPACE UNUSED X SPACE (Y SPACE) X SPACE UNUSED UNUSED Non-MAC Class Ops (Read/Write) MAC Class Ops (Write) Indirect EA from any W 2004 Microchip Technology Inc. MAC Class Ops (Read) Indirect EA from W8, W9 Preliminary Indirect EA from W10, W11 DS70082G-page 39 DS70082G-page 40 Preliminary 001E 0020 0022 0024 0026 0028 002A 002C 002E 0030 0032 0034 W15 SPLIM ACCAL ACCAH ACCAU ACCBL ACCBH ACCBU PCL PCH TBLPAG PSVPAG -- -- -- -- CORCON 0044 Legend: u = uninitialized bit -- OB -- -- -- -- -- -- Bit 14 -- Bit 15 OA 0040 001C W14 0042 001A W13 SR 0018 W12 DOENDH 0016 W11 003E 0014 W10 003C 0012 W9 DOENDL 0010 W8 DOSTARTH 000E W7 003A 000C W6 DOSTARTL 000A W5 0036 0008 W4 0038 0006 W3 RCOUNT 0004 W2 DCOUNT 0000 0002 W0 W1 SFR Name Bit 12 Bit 11 -- SA -- -- -- -- -- US SB -- -- -- -- -- EDT OAB -- -- -- -- -- Sign-Extension (ACCB<39>) DL2 SAB -- -- -- -- -- Bit 10 Sign-Extension (ACCA<39>) Bit 13 CORE REGISTER MAP Address (Home) TABLE 3-3: -- DL0 DC -- DOENDL IPL2 -- -- SATA DCOUNT RCOUNT -- -- -- PCL ACCBH ACCBL ACCAH ACCAL SPLIM W15 W14 W13 W12 W11 W10 W9 W8 W7 W6 W5 W4 W3 W2 W1 -- Bit 7 W0 / WREG Bit 8 DOSTARTL DL1 DA -- -- -- -- -- Bit 9 SATB IPL1 Bit 6 Bit 3 RA IPL3 N DOENDH DOSTARTH PSVPAG TBLPAG PCH ACCBU ACCAU Bit 4 SATDW ACCSAT IPL0 Bit 5 PSV OV Bit 2 RND Z Bit 1 IF C 0 0 Bit 0 0000 0000 0010 0000 0000 0000 0000 0000 0000 0000 0uuu uuuu uuuu uuuu uuuu uuu0 0000 0000 0uuu uuuu uuuu uuuu uuuu uuu0 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Reset State dsPIC30F 2004 Microchip Technology Inc. 0048 004A 004C 004E 0050 XMODEND YMODSRT YMODEND XBREV 2004 Microchip Technology Inc. -- 0052 u = uninitialized bit -- YMODEN Bit 14 -- Bit 13 -- Bit 12 Bit 11 Bit 9 BWM<3:0> Bit 10 YE<15:1> YS<15:1> XE<15:1> XS<15:1> Bit 8 Bit 5 YWM<3:0> Bit 6 DISICNT<13:0> XB<14:0> Bit 7 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. DISICNT Legend: BREN XMODEN 0046 MODCON XMODSRT SFR Name Bit 15 CORE REGISTER MAP (CONTINUED) Address (Home) TABLE 3-3: Bit 4 Bit 3 Bit 1 XWM<3:0> Bit 2 1 0 1 0 Bit 0 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuu1 uuuu uuuu uuuu uuu0 uuuu uuuu uuuu uuu1 uuuu uuuu uuuu uuu0 0000 0000 0000 0000 Reset State dsPIC30F Preliminary DS70082G-page 41 dsPIC30F NOTES: DS70082G-page 42 Preliminary 2004 Microchip Technology Inc. dsPIC30F 4.0 ADDRESS GENERATOR UNITS Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). The dsPIC core contains two independent address generator units: the X AGU and Y AGU. Further, the X AGU has two parts: X RAGU (Read AGU) and X WAGU (Write AGU). The X RAGU and X WAGU support byte and respectively, for both MCU and DSP instructions. The Y AGU supports word sized data reads for the DSP MAC class of instructions only. They are each capable of supporting two types of data addressing: * Linear Addressing * Modulo (Circular) Addressing In addition, the X WAGU can support: * Bit-Reversed Addressing Linear and Modulo Data Addressing modes can be applied to data space or program space. Bit-Reversed addressing is only applicable to data space addresses. 4.1 Data Space Organization Although the data space memory is organized as 16-bit words, all effective addresses (EAs) are byte addresses. Instructions can thus access individual bytes, as well as properly aligned words. Word addresses must be aligned at even boundaries. Misaligned word accesses are not supported, and if attempted, will initiate an address error trap. When executing instructions which require just one source operand to be fetched from data space, the X RAGU and X WAGU are used to calculate the effective address. The X RAGU and X WAGU can generate any address in the 64 Kbyte data space. They support all MCU Addressing modes and Modulo Addressing for low overhead circular buffers. The X WAGU also supports Bit-Reversed Addressing to facilitate FFT data reorganization. When executing instructions which require two source operands to be concurrently fetched (i.e., the MAC class of DSP instructions), both the X RAGU and Y AGU are used simultaneously and the data space is split into 2 independent address spaces, X and Y. The Y AGU supports Register Indirect Post-Modified and Modulo Addressing only. Note that the data write phase of the MAC class of instruction does not split X and Y address space. The write EA is calculated using the X WAGU and the data space is configured for full 64 Kbyte access. In the Split Data Space mode, some W register address pointers are dedicated to X RAGU, and others to Y AGU. The EAs of each operand must, therefore, be restricted within different address spaces. If they are not, one of the EAs will be outside the address space of the corresponding data space (and will fetch the bus default value, 0x0000). 4.2 Instruction Addressing Modes The Addressing modes in Table 4-1 form the basis of the Addressing modes optimized to support the specific features of individual instructions. The Addressing modes provided in the MAC class of instructions are somewhat different from those in the other instruction types. Some Addressing mode combinations may lead to a one-cycle stall during instruction execution, or are not allowed, as discussed in Section 4.3. TABLE 4-1: FUNDAMENTAL ADDRESSING MODES SUPPORTED Addressing Mode Description File Register Direct The address of the file register is specified explicitly. Register Direct The contents of a register are accessed directly. Register Indirect The contents of Wn forms the EA. Register Indirect Post-modified The contents of Wn forms the EA. Wn is post-modified (incremented or decremented) by a constant value. Register Indirect Pre-modified Wn is pre-modified (incremented or decremented) by a signed constant value to form the EA. Register Indirect with Register Offset The sum of Wn and Wb forms the EA. Register Indirect with Literal Offset 2004 Microchip Technology Inc. The sum of Wn and a literal forms the EA. Preliminary DS70082G-page 43 dsPIC30F 4.2.1 FILE REGISTER INSTRUCTIONS Most file register instructions use a 13-bit address field (f) to directly address data present in the first 8192 bytes of data memory. These memory locations are known as File Registers. Most file register instructions employ a working register W0, which is denoted as WREG in these instructions. The destination is typically either the same file register, or WREG (with the exception of the MUL instruction), which writes the result to a register or register pair. The MOV instruction can use a 16-bit address field. 4.2.2 In summary, the following Addressing modes are supported by Move and Accumulator instructions: * * * * * * * * Register Direct Register Indirect Register Indirect Post-modified Register Indirect Pre-modified Register Indirect with Register Offset (Indexed) Register Indirect with Literal Offset 8-bit Literal 16-bit Literal Note: MCU INSTRUCTIONS The three-operand MCU instructions are of the form: Operand 3 = Operand 1 <function> Operand 2 where Operand 1 is always a working register (i.e., the Addressing mode can only be register direct), which is referred to as Wb. Operand 2 can be W register, fetched from data memory, or 5-bit literal. In twooperand instructions, the result location is the same as that of one of the operands. Certain MCU instructions are one-operand operations. The following Addressing modes are supported by MCU instructions: * * * * * Register Direct Register Indirect Register Indirect Post-modified Register Indirect Pre-modified 5-bit or 10-bit Literal Note: 4.2.3 Not all instructions support all the Addressing modes given above. Individual instructions may support different subsets of these Addressing modes. MOVE AND ACCUMULATOR INSTRUCTIONS Move instructions and the DSP Accumulator class of instructions provide a greater degree of addressing flexibility than other instructions. In addition to the Addressing modes supported by most MCU instructions, Move and Accumulator instructions also support Register Indirect with Register Offset Addressing mode, also referred to as Register Indexed mode. Note: For the MOV instructions, the Addressing mode specified in the instruction can differ for the source and destination EA. However, the 4-bit Wb (Register Offset) field is shared between both source and destination (but typically only used by one). DS70082G-page 44 4.2.4 Not all instructions support all the Addressing modes given above. Individual instructions may support different subsets of these Addressing modes. MAC INSTRUCTIONS The dual source operand DSP instructions (CLR, ED, EDAC, MAC, MPY, MPY.N, MOVSAC and MSC), also referred to as MAC instructions, utilize a simplified set of Addressing modes to allow the user to effectively manipulate the data pointers through register indirect tables. The two source operand pre-fetch registers must be a member of the set {W8, W9, W10, W11}. For data reads, W8 and W9 will always be directed to the X RAGU and W10 and W11 will always be directed to the Y AGU. The effective addresses generated (before and after modification) must, therefore, be valid addresses within X data space for W8 and W9 and Y data space for W10 and W11. Note: Register Indirect with Register Offset Addressing is only available for W9 (in X space) and W11 (in Y space). In summary, the following Addressing modes are supported by the MAC class of instructions: * * * * * Register Indirect Register Indirect Post-modified by 2 Register Indirect Post-modified by 4 Register Indirect Post-modified by 6 Register Indirect with Register Offset (Indexed) 4.2.5 OTHER INSTRUCTIONS Besides the various Addressing modes outlined above, some instructions use literal constants of various sizes. For example, BRA (branch) instructions use 16-bit signed literals to specify the branch destination directly, whereas the DISI instruction uses a 14-bit unsigned literal field. In some instructions, such as ADD Acc, the source of an operand or result is implied by the opcode itself. Certain operations, such as NOP, do not have any operands. Preliminary 2004 Microchip Technology Inc. dsPIC30F 4.3 4.3.1 4.3.2 Instruction Stalls During the instruction pre-decode, the core determines if any address register dependency is imminent across an instruction boundary. The stall detection logic compares the W register (if any) used for the destination EA of the instruction currently being executed, with the W register to be used by the source EA (if any) of the prefetched instruction. As the W registers are also memory mapped, the stall detection logic also derives an SFR address from the W register being used by the destination EA, and determines whether this address is being issued during the write phase of the instruction currently being executed. INTRODUCTION In order to maximize data space, EA calculation and operand fetch time, the X data space read and write accesses are partially pipelined. The latter half of the read phase overlaps the first half of the write phase of an instruction, as shown in Section 2. Address register data dependencies, also known as `Read After Write' (RAW) dependencies, may therefore arise between successive read and write operations using common registers. They occur across instruction boundaries and are detected by the hardware. When it observes a match between the destination and source registers, a set of rules are applied to decide whether or not to stall the instruction by one cycle. Table 4-2 lists out the various RAW conditions which cause an instruction execution stall. An example of a RAW dependency is a write operation (in the current instruction) that modifies W5, followed by a read operation (in the next instruction) that uses W5 as a source address pointer. W5 will not be valid for the read operation until the earlier write completes. This problem is resolved by stalling the instruction execution for one instruction cycle, thereby allowing the write to complete before the next read is started. TABLE 4-2: RAW DEPENDENCY DETECTION RAW DEPENDENCY RULES (DETECTION BY HARDWARE) Destination Source Addressing Addressing Mode Mode Using Wn Using Wn Examples (Wn = W2) Status Direct Direct Direct Indirect Stall ADD.w MOV.w W0, W1, W2 [W2], W3 Direct Indirect with Pre- or Post-Modification Stall ADD.w MOV.w W0, W1, W2 [W2++], W3 Indirect Direct No Stall ADD.w MOV.w W0, W1, [W2] W2, W3 Indirect Indirect No Stall ADD.w MOV.w W0, W1, [W2] [W2], W3 Indirect Indirect Indirect Indirect with Pre- or Post-Modification Indirect Indirect with Pre- or Post-Modification Indirect with Pre- or Direct Post-Modification No Stall ADD.w MOV.w Stall ADD.w MOV.w No Stall ADD.w MOV.w Stall ADD.w MOV.w No Stall ADD.w MOV.w W0, W1, W2 W2, W3 W0, W1, [W2] ; W2=0x0004 (mapped W2) [W2], W3 ; (i.e., if W2 = addr. of W2) W0, W1, [W2] [W2++], W3 W0, W1, [W2] ; W2=0x0004 (mapped W2) [W2++], W3 ; (i.e., if W2 = addr. of W2) W0, W1, [W2++] W2, W3 Indirect with Pre- or Indirect Post-Modification Stall ADD.w MOV.w W0, W1, [W2++] [W2], W3 Indirect with Pre- or Indirect with Pre- or Post-Modification Post-Modification Stall ADD.w MOV.w W0, W1, [W2++] [W2++], W3 2004 Microchip Technology Inc. Preliminary DS70082G-page 45 dsPIC30F 4.4 Modulo Addressing Modulo addressing is a method of providing an automated means to support circular data buffers using hardware. The objective is to remove the need for software to perform data address boundary checks when executing tightly looped code, as is typical in many DSP algorithms. Modulo addressing can operate in either data or program space (since the data pointer mechanism is essentially the same for both). One circular buffer can be supported in each of the X (which also provides the pointers into Program space) and Y data spaces. Modulo addressing can operate on any W register pointer. However, it is not advisable to use W14 or W15 for Modulo addressing, since these two registers are used as the Stack Frame Pointer and Stack Pointer, respectively. In general, any particular circular buffer can only be configured to operate in one direction, as there are certain restrictions on the buffer start address (for incrementing buffers) or end address (for decrementing buffers) based upon the direction of the buffer. The only exception to the usage restrictions is for buffers which have a power-of-2 length. As these buffers satisfy the start and end address criteria, they may operate in a Bi-Directional mode, (i.e., address boundary checks will be performed on both the lower and upper address boundaries). 4.4.1 START AND END ADDRESS The Modulo addressing scheme requires that a starting and an end address be specified and loaded into the 16-bit modulo buffer address registers: XMODSRT, XMODEND, YMODSRT, YMODEND (see Table 3-3). Note: The start and end addresses are the first and last byte addresses of the buffer (irrespective of whether it is a word or byte buffer, or an increasing or decreasing buffer). Moreover, the start address must be even and the end address must be odd (for both word and byte buffers). For example, if the start address was chosen to be 0x2000, then the X/YMODEND would be set to (0x2000 + 0x0064 - 1) = 0x2063. Note: In the case of a decrementing buffer, the last `N' bits of the data buffer end address must be ones. There are no such restrictions on the start address of a decrementing buffer. For example, if the buffer size (modulus value) is chosen to be 100 bytes (0x64), then the buffer end address for a decrementing buffer must contain 7 Least Significant ones. Valid end addresses may, therefore, be 0xXXFF and 0xXX7F, where `X' is any hexadecimal value. Subtracting the buffer length from this value and adding 1 will give the start address to be written into X/YMODSRT. For example, if the end address was chosen to be 0x207F, then the start address would be (0x207F - 0x0064+1) = 0x201C, which is the first physical address of the buffer. Note: Y-space modulo addressing EA calculations assume word-sized data (LS bit of every EA is always clear). The length of a circular buffer is not directly specified. It is determined by the difference between the corresponding start and end addresses. The maximum possible length of the circular buffer is 32K words (64 Kbytes). A write operation to the MODCON register should not be immediately followed by an indirect read operation using any W register. Note 1: Using a POP instruction to pop the contents of the top-of-stack (TOS) location into MODCON, also constitutes a write to MODCON. Therefore, the instruction immediately following such a POP cannot be any instruction performing an indirect read operation. If the length of an incrementing buffer is greater than M = 2N-1, but not greater than M = 2N bytes, then the last 'N' bits of the data buffer start address must be zeros. There are no such restrictions on the end address of an incrementing buffer. For example, if the buffer size (modulus value) is chosen to be 100 bytes (0x64), then the buffer start address for an incrementing buffer must contain 7 Least Significant zeros. Valid start addresses may, therefore, be 0xXX00 and 0xXX80, where `X' is any hexadecimal value. Adding the buffer length to this value and subtracting 1 will give the end address to be written into X/YMODEND. DS70082G-page 46 `Start address' refers to the smallest address boundary of the circular buffer. The first access of the buffer may be at any address within the modulus range (see Section 4.4.4). Preliminary 2: It should be noted that some instructions perform an indirect read operation implicitly. These are: POP, RETURN, RETFIE, RETLW and ULNK. 2004 Microchip Technology Inc. dsPIC30F 4.4.2 W ADDRESS REGISTER SELECTION The Modulo and Bit-Reversed Addressing Control register MODCON<15:0> contains enable flags as well as a W register field to specify the W address registers. The XWM and YWM fields select which registers will operate with modulo addressing. If XWM = 15, X RAGU and X WAGU modulo addressing are disabled. Similarly, if YWM = 15, Y AGU modulo addressing is disabled. Note: The XMODSRT and XMODEND registers, and the XWM register selection, are shared between X RAGU and X WAGU. FIGURE 4-1: The X Address Space Pointer W register (XWM) to which modulo addressing is to be applied, is stored in MODCON<3:0> (see Table 3-3). Modulo addressing is enabled for X data space when XWM is set to any value other than 15 and the XMODEN bit is set at MODCON<15>. The Y Address Space Pointer W register (YWM) to which modulo addressing is to be applied, is stored in MODCON<7:4>. Modulo addressing is enabled for Y data space when YWM is set to any value other than 15 and the YMODEN bit is set at MODCON<14>. INCREMENTING BUFFER MODULO ADDRESSING OPERATION EXAMPLE Byte Address 0x1100 MOV MOV MOV MOV MOV MOV MOV MOV DO MOV AGAIN: #0x1100,W0 W0, XMODSRT #0x1163,W0 W0,MODEND #0x8001,W0 W0,MODCON #0x0000,W0 #0x1110,W1 AGAIN,#0x31 W0, [W1++] INC W0,W0 ;set modulo start address ;set modulo end address ;enable W1, X AGU for modulo ;W0 holds buffer fill value ;point W1 to buffer ;fill the 50 buffer locations ;fill the next location ;increment the fill value 0x1163 Start Addr = 0x1100 End Addr = 0x1163 Length = 0x0032 words 2004 Microchip Technology Inc. Preliminary DS70082G-page 47 dsPIC30F FIGURE 4-2: DECREMENTING BUFFER MODULO ADDRESSING OPERATION EXAMPLE Byte Address MOV MOV MOV MOV MOV MOV MOV MOV DO MOV AGAIN: 0x11D0 #0x11D0,W0 #0, XMODSRT 0x11FF,W0 W0,XMODEND #0x8001,W0 W0,MODCON #0x000F,W0 #0x11E0,W1 AGAIN,#0x17 W0, [W1--] DEC W0,W0 ;set modulo start address ;set modulo end address ;enable W1, X AGU for modulo ;W0 holds buffer fill value ;point W1 to buffer ;fill the 24 buffer locations ;fill the next location ;decrement the fill value 0x11FF Start Addr = 0x11D0 End Addr = 0x11FF Length = 0x0018 words 4.4.3 4.4.4 MODULO ADDRESSING APPLICABILITY Modulo addressing can be applied to the effective address (EA) calculation associated with any W register. It is important to realize that the address boundaries check for addresses less than or greater than the upper (for incrementing buffers) and lower (for decrementing buffers) boundary addresses (not just equal to). Address changes may, therefore, jump over boundaries and still be adjusted correctly (see Section 4.4.4 for restrictions). Note: MODULO ADDRESSING RESTRICTIONS For an incrementing buffer the circular buffer start address (lower boundary) is arbitrary, but must be at a `zero' power-of-two boundary (see Section 4.4.1). For a decrementing buffer, the circular buffer end address is arbitrary, but must be at a `ones' boundary. There are no restrictions regarding how much an EA calculation can exceed the address boundary being checked and still be successfully corrected. The modulo corrected effective address is written back to the register only when PreModify or Post-Modify Addressing mode is used to compute the Effective Address. When an address offset (e.g., [W7+W2]) is used, modulo address correction is performed, but the contents of the register remains unchanged. DS70082G-page 48 Preliminary 2004 Microchip Technology Inc. dsPIC30F Once configured, the direction of successive addresses into a buffer should not be changed. Although all EAs will continue to be generated correctly irrespective of offset sign, only one address boundary is checked for each type of buffer. Thus, if a buffer is set up to be an incrementing buffer by choosing an appropriate starting address, then correction of the effective address will be performed by the AGU at the upper address boundary, but no address correction will occur if the EA crosses the lower address boundary. Similarly, for a decrementing boundary, address correction will be performed by the AGU at the lower address boundary, but no address correction will take place if the EA crosses the upper address boundary. The circular buffer pointer may be freely modified in both directions without a possibility of out-of-range address access only when the start address satisfies the condition for an incrementing buffer (last `N' bits are zeroes) and the end address satisfies the condition for a decrementing buffer (last `N' bits are ones). Thus, the modulo addressing capability is truly bi-directional only for modulo-2 length buffers. 4.5 Bit-Reversed Addressing Bit-Reversed addressing is intended to simplify data reordering for radix-2 FFT algorithms. It is supported by the X WAGU only (i.e., for data writes only). The modifier, which may be a constant value or register contents, is regarded as having its bit order reversed. The address source and destination are kept in normal order. Thus, the only operand requiring reversal is the modifier. 4.5.1 2. 3. the BREN bit is set in the XBREV register and the Addressing mode used is Register Indirect with Pre-Increment or Post-Increment. If the length of a bit-reversed buffer is M = 2N bytes, then the last 'N' bits of the data buffer start address must be zeros. XB<14:0> is the bit-reversed address modifier or `pivot point' which is typically a constant. In the case of an FFT computation, its value is equal to half of the FFT data buffer size. Note: When enabled, bit-reversed addressing will only be executed for register indirect with pre-increment or post-increment addressing and word sized data writes. It will not function for any other addressing mode or for byte-sized data, and normal addresses will be generated instead. When bit-reversed addressing is active, the W address pointer will always be added to the address modifier (XB) and the offset associated with the register Indirect Addressing mode will be ignored. In addition, as word sized data is a requirement, the LS bit of the EA is ignored (and always clear). Note: BIT-REVERSED ADDRESSING IMPLEMENTATION Bit-Reversed addressing is enabled when: 1. BWM (W register selection) in the MODCON register is any value other than 15 (the stack can not be accessed using bit-reversed addressing) and FIGURE 4-3: All Bit-Reversed EA calculations assume word sized data (LS bit of every EA is always clear). The XB value is scaled accordingly to generate compatible (byte) addresses. Modulo addressing and bit-reversed addressing should not be enabled together. In the event that the user attempts to do this, bit reversed addressing will assume priority when active for the X WAGU, and X WAGU modulo addressing will be disabled. However, modulo addressing will continue to function in the X RAGU. If bit-reversed addressing has already been enabled by setting the BREN (XBREV<15>) bit, then a write to the XBREV register should not be immediately followed by an indirect read operation using the W register that has been designated as the bit-reversed pointer. BIT-REVERSED ADDRESS EXAMPLE Sequential Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 0 Bit Locations Swapped Left-to-Right Around Center of Binary Value b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b1 b2 b3 b4 0 Bit-Reversed Address Pivot Point XB = 0x0008 for a 16-word Bit-Reversed Buffer 2004 Microchip Technology Inc. Preliminary DS70082G-page 49 dsPIC30F TABLE 4-3: BIT-REVERSED ADDRESS SEQUENCE (16-ENTRY) Normal Address A3 A2 A1 A0 Bit-Reversed Address Decimal A3 A2 A1 A0 Decimal 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 8 0 0 1 0 2 0 1 0 0 4 0 0 1 1 3 1 1 0 0 12 0 1 0 0 4 0 0 1 0 2 0 1 0 1 5 1 0 1 0 10 0 1 1 0 6 0 1 1 0 6 0 1 1 1 7 1 1 1 0 14 1 0 0 0 8 0 0 0 1 1 1 0 0 1 9 1 0 0 1 9 1 0 1 0 10 0 1 0 1 5 1 0 1 1 11 1 1 0 1 13 1 1 0 0 12 0 0 1 1 3 1 1 0 1 13 1 0 1 1 11 1 1 1 0 14 0 1 1 1 7 1 1 1 1 15 1 1 1 1 15 TABLE 4-4: DS70082G-page 50 BIT-REVERSED ADDRESS MODIFIER VALUES Buffer Size (Words) XB<14:0> Bit-Reversed Address Modifier Value 32768 0x4000 16384 0x2000 8192 0x1000 4096 0x0800 2048 0x0400 1024 0x0200 512 0x0100 256 0x0080 128 0x0040 64 0x0020 32 0x0010 16 0x0008 8 0x0004 4 0x0002 2 0x0001 Preliminary 2004 Microchip Technology Inc. dsPIC30F 5.0 INTERRUPTS Note: Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). The dsPIC30F Motor Control and Power Conversion Family has up to 44 interrupt sources and 4 processor exceptions (traps), which must be arbitrated based on a priority scheme. The CPU is responsible for reading the Interrupt Vector Table (IVT) and transferring the address contained in the interrupt vector to the program counter. The interrupt vector is transferred from the program data bus into the program counter, via a 24-bit wide multiplexer on the input of the program counter. The Interrupt Vector Table (IVT) and Alternate Interrupt Vector Table (AIVT) are placed near the beginning of program memory (0x000004). The IVT and AIVT are shown in Figure 5-2. The interrupt controller is responsible for preprocessing the interrupts and processor exceptions, prior to their being presented to the processor core. The peripheral interrupts and traps are enabled, prioritized and controlled using centralized special function registers: * IFS0<15:0>, IFS1<15:0>, IFS2<15:0> All interrupt request flags are maintained in these three registers. The flags are set by their respective peripherals or external signals, and they are cleared via software. * IEC0<15:0>, IEC1<15:0>, IEC2<15:0> All interrupt enable control bits are maintained in these three registers. These control bits are used to individually enable interrupts from the peripherals or external signals. * IPC0<15:0>... IPC11<7:0> The user assignable priority level associated with each of these 44 interrupts is held centrally in these twelve registers. * IPL<3:0> The current CPU priority level is explicitly stored in the IPL bits. IPL<3> is present in the CORCON register, whereas IPL<2:0> are present in the status register (SR) in the processor core. * INTCON1<15:0>, INTCON2<15:0> Global interrupt control functions are derived from these two registers. INTCON1 contains the control and status flags for the processor exceptions. The INTCON2 register controls the external interrupt request signal behavior and the use of the alternate vector table. 2004 Microchip Technology Inc. Interrupt flag bits get set when an interrupt condition occurs, regardless of the state of its corresponding enable bit. User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt. All interrupt sources can be user assigned to one of 7 priority levels, 1 through 7, via the IPCx registers. Each interrupt source is associated with an interrupt vector, as shown in Figure 5-2. Levels 7 and 1 represent the highest and lowest maskable priorities, respectively. Note: Assigning a priority level of `0' to an interrupt source is equivalent to disabling that interrupt. If the NSTDIS bit (INTCON1<15>) is set, nesting of interrupts is prevented. Thus, if an interrupt is currently being serviced, processing of a new interrupt is prevented, even if the new interrupt is of higher priority than the one currently being serviced. Note: The IPL bits become read-only whenever the NSTDIS bit has been set to `1'. Certain interrupts have specialized control bits for features like edge or level triggered interrupts, interrupton-change, etc. Control of these features remains within the peripheral module which generates the interrupt. The DISI instruction can be used to disable the processing of interrupts of priorities 6 and lower for a certain number of instructions, during which the DISI bit (INTCON2<14>) remains set. When an interrupt is serviced, the PC is loaded with the address stored in the vector location in Program Memory that corresponds to the interrupt. There are 63 different vectors within the IVT (refer to Figure 5-2). These vectors are contained in locations 0x000004 through 0x0000FE of program memory (refer to Figure 5-2). These locations contain 24-bit addresses, and in order to preserve robustness, an address error trap will take place should the PC attempt to fetch any of these words during normal execution. This prevents execution of random data as a result of accidentally decrementing a PC into vector space, accidentally mapping a data space address into vector space, or the PC rolling over to 0x000000 after reaching the end of implemented program memory space. Execution of a GOTO instruction to this vector space will also generate an address error trap. Preliminary DS70082G-page 51 dsPIC30F 5.1 TABLE 5-1: Interrupt Priority The user assignable Interrupt Priority (IP<2:0>) bits for each individual interrupt source are located in the LS 3bits of each nibble, within the IPCx register(s). Bit 3 of each nibble is not used and is read as a `0'. These bits define the priority level assigned to a particular interrupt by the user. Note: The user selectable priority levels start at 0, as the lowest priority, and level 7, as the highest priority. Since more than one interrupt request source may be assigned to a specific user specified priority level, a means is provided to assign priority within a given level. This method is called "Natural Order Priority". Table 5-1 lists the interrupt numbers and interrupt sources for the dsPIC devices and their associated vector numbers. Note 1: The natural order priority scheme has 0 as the highest priority and 53 as the lowest priority. 2: The natural order priority number is the same as the INT number. The ability for the user to assign every interrupt to one of seven priority levels implies that the user can assign a very high overall priority level to an interrupt with a low natural order priority. For example, the PLVD (Low Voltage Detect) can be given a priority of 7. The INT0 (external interrupt 0) may be assigned to priority level 1, thus giving it a very low effective priority. DS70082G-page 52 NATURAL ORDER PRIORITY Vector INT Numbe Number r Interrupt Source Highest Natural Order Priority 0 8 INT0 - External Interrupt 0 1 9 IC1 - Input Capture 1 2 10 OC1 - Output Compare 1 3 11 T1 - Timer 1 4 12 IC2 - Input Capture 2 5 13 OC2 - Output Compare 2 6 14 T2 - Timer 2 7 15 T3 - Timer 3 8 16 SPI1 9 17 U1RX - UART1 Receiver 10 18 U1TX - UART1 Transmitter 11 19 ADC - ADC Convert Done 12 20 NVM - NVM Write Complete 13 21 SI2C - I2C Slave Interrupt 14 22 MI2C - I2C Master Interrupt 15 23 Input Change Interrupt 16 24 INT1 - External Interrupt 1 17 25 IC7 - Input Capture 7 18 26 IC8 - Input Capture 8 19 27 OC3 - Output Compare 3 20 28 OC4 - Output Compare 4 21 29 T4 - Timer 4 22 30 T5 - Timer 5 23 31 INT2 - External Interrupt 2 24 32 U2RX - UART2 Receiver 25 33 U2TX - UART2 Transmitter 26 34 SPI2 27 35 C1 - Combined IRQ for CAN1 28 36 IC3 - Input Capture 3 29 37 IC4 - Input Capture 4 30 38 IC5 - Input Capture 5 31 39 IC6 - Input Capture 6 32 40 OC5 - Output Compare 5 33 41 OC6 - Output Compare 6 34 42 OC7 - Output Compare 7 35 43 OC8 - Output Compare 8 36 44 INT3 - External Interrupt 3 37 45 INT4 - External Interrupt 4 38 46 C2 - Combined IRQ for CAN2 39 47 PWM - PWM Period Match 40 48 QEI - QEI Interrupt 41 49 Reserved 42 50 LVD - Low Voltage Detect 43 51 FLTA - PWM Fault A 44 52 FLTB - PWM Fault B 45-53 53-61 Reserved Lowest Natural Order Priority Preliminary 2004 Microchip Technology Inc. dsPIC30F 5.2 Reset Sequence A Reset is not a true exception, because the interrupt controller is not involved in the Reset process. The processor initializes its registers in response to a Reset, which forces the PC to zero. The processor then begins program execution at location 0x000000. A GOTO instruction is stored in the first program memory location, immediately followed by the address target for the GOTO instruction. The processor executes the GOTO to the specified address and then begins operation at the specified target (start) address. 5.2.1 RESET SOURCES In addition to External Reset and Power-on Reset (POR), there are 6 sources of error conditions which `trap' to the Reset vector. * Watchdog Time-out: The watchdog has timed out, indicating that the processor is no longer executing the correct flow of code. * Uninitialized W Register Trap: An attempt to use an uninitialized W register as an address pointer will cause a Reset. * Illegal Instruction Trap: Attempted execution of any unused opcodes will result in an illegal instruction trap. Note that a fetch of an illegal instruction does not result in an illegal instruction trap if that instruction is flushed prior to execution due to a flow change. * Brown-out Reset (BOR): A momentary dip in the power supply to the device has been detected, which may result in malfunction. * Trap Lockout: Occurrence of multiple Trap conditions simultaneously will cause a Reset. 5.3 Traps Traps can be considered as non-maskable, non-stable interrupts, which adhere to a predefined priority as shown in Figure 5-2. They are intended to provide the user a means to correct erroneous operation during debug and when operating within the application. Note: If the user does not intend to take corrective action in the event of a trap error condition, these vectors must be loaded with the address of a default handler that simply contains the RESET instruction. If, on the other hand, one of the vectors containing an invalid address is called, an address error trap is generated. 2004 Microchip Technology Inc. Note that many of these trap conditions can only be detected when they occur. Consequently, the questionable instruction is allowed to complete prior to trap exception processing. If the user chooses to recover from the error, the result of the erroneous action that caused the trap may have to be corrected. There are 8 fixed priority levels for traps: Level 8 through Level 15, which implies that the IPL3 is always set during processing of a trap. If the user is not currently executing a trap, and he sets the IPL<3:0> bits to a value of `0111' (Level 7), then all interrupts are disabled, but traps can still be processed. 5.3.1 TRAP SOURCES The following traps are provided with increasing priority. However, since all traps can be nested, priority has little effect. Math Error Trap: The Math Error trap executes under the following three circumstances: 1. Should an attempt be made to divide by zero, the divide operation will be aborted on a cycle boundary and the trap taken. If enabled, a Math Error trap will be taken when an arithmetic operation on either accumulator A or B causes an overflow from bit 31 and the accumulator guard bits are not utilized. If enabled, a Math Error trap will be taken when an arithmetic operation on either accumulator A or B causes a catastrophic overflow from bit 39 and all saturation is disabled. If the shift amount specified in a shift instruction is greater than the maximum allowed shift amount, a trap will occur. 2. 3. 4. Address Error Trap: This trap is initiated when any of the following circumstances occurs: 1. 2. A misaligned data word access is attempted. A data fetch from our unimplemented data memory location is attempted. A data access of an unimplemented program memory location is attempted. An instruction fetch from vector space is attempted. 3. 4. Note: Preliminary In the MAC class of instructions, wherein the data space is split into X and Y data space, unimplemented X space includes all of Y space, and unimplemented Y space includes all of X space. DS70082G-page 53 dsPIC30F 5. Execution of a "BRA #literal" instruction or a "GOTO #literal" instruction, where literal is an unimplemented program memory address. 6. Executing instructions after modifying the PC to point to unimplemented program memory addresses. The PC may be modified by loading a value into the stack and executing a RETURN instruction. * Stack Error Trap: This trap is initiated under the following conditions: 1. The stack pointer is loaded with a value which is greater than the (user programmable) limit value written into the SPLIM register (stack overflow). 2. The stack pointer is loaded with a value which is less than 0x0800 (simple stack underflow). * Oscillator Fail Trap: This trap is initiated if the external oscillator fails and operation becomes reliant on an internal RC backup. 5.3.2 HARD AND SOFT TRAPS It is possible that multiple traps can become active within the same cycle (e.g., a misaligned word stack write to an overflowed address). In such a case, the fixed priority shown in Figure 5-2 is implemented, which may require the user to check if other traps are pending, in order to completely correct the fault. `Soft' traps include exceptions of priority level 8 through level 11, inclusive. The arithmetic error trap (level 11) falls into this category of traps. Soft traps can be treated like non-maskable sources of interrupt that adhere to the priority assigned by their position in the IVT. Soft traps are processed like interrupts and require 2 cycles to be sampled and acknowledged prior to exception processing. Therefore, additional instructions may be executed before a soft trap is acknowledged. `Hard' traps include exceptions of priority level 12 through level 15, inclusive. The address error (level 12), stack error (level 13) and oscillator error (level 14) traps fall into this category. Each hard trap that occurs must be acknowledged before code execution of any type may continue. If a lower priority hard trap occurs while a higher priority trap is pending, acknowledged, or is being processed, a hard trap conflict will occur. The conflict occurs because the lower priority trap cannot be acknowledged until processing for the higher priority trap completes. The device is automatically Reset in a hard trap conflict condition. The TRAPR status bit (RCON<15>) is set when the Reset occurs, so that the condition may be detected in software. In the case of a Math Error Trap or Oscillator Failure Trap, the condition that causes the trap to occur must be removed before the respective trap flag bit in the INTCON1 register may be cleared. 5.4 Interrupt Sequence All interrupt event flags are sampled in the beginning of each instruction cycle by the IFSx registers. A pending interrupt request (IRQ) is indicated by the flag bit being equal to a `1' in an IFSx register. The IRQ will cause an interrupt to occur if the corresponding bit in the interrupt enable (IECx) register is set. For the remainder of the instruction cycle, the priorities of all pending interrupt requests are evaluated. If there is a pending IRQ with a priority level greater than the current processor priority level in the IPL bits, the processor will be interrupted. The processor then stacks the current program counter and the low byte of the processor status register (SRL), as shown in Figure 5-1. The low byte of the status register contains the processor priority level at the time, prior to the beginning of the interrupt cycle. The processor then loads the priority level for this interrupt into the status register. This action will disable all lower priority interrupts until the completion of the Interrupt Service Routine. Like soft traps, hard traps can also be viewed as nonmaskable sources of interrupt. The difference between hard traps and soft traps is that hard traps force the CPU to stop code execution after the instruction causing the trap has completed. Normal program execution flow will not resume until after the trap has been acknowledged and processed. If a higher priority trap occurs while any lower priority trap is in progress, processing of the lower priority trap will be suspended and the higher priority trap will be acknowledged and processed. The lower priority trap will remain pending until processing of the higher priority trap completes. DS70082G-page 54 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 5-1: INTERRUPT STACK FRAME Stack Grows Towards Higher Address 0x0000 15 5.5 0 PC<15:0> SRL IPL3 PC<22:16> W15 (before CALL) <Free Word> W15 (after CALL) POP : [--W15] PUSH : [W15++] Note 1: The user can always lower the priority level by writing a new value into SR. The Interrupt Service Routine must clear the interrupt flag bits in the IFSx register before lowering the processor interrupt priority, in order to avoid recursive interrupts. 2: The IPL3 bit (CORCON<3>) is always clear when interrupts are being processed. It is set only during execution of traps. The RETFIE (Return from Interrupt) instruction will unstack the program counter and status registers to return the processor to its state prior to the interrupt sequence. Decreasing Priority FIGURE 5-2: IVT AIVT EXCEPTION VECTORS Reset - GOTO Instruction Reset - GOTO Address Reserved Oscillator Fail Trap Vector Address Error Trap Vector Stack Error Trap Vector Math Error Trap Vector Reserved Vector Reserved Vector Reserved Vector Interrupt 0 Vector Interrupt 1 Vector -- -- -- Interrupt 52 Vector Interrupt 53 Vector Reserved Reserved Reserved Oscillator Fail Trap Vector Stack Error Trap Vector Address Error Trap Vector Math Error Trap Vector Reserved Vector Reserved Vector Reserved Vector Interrupt 0 Vector Interrupt 1 Vector -- -- -- Interrupt 52 Vector Interrupt 53 Vector 2004 Microchip Technology Inc. 0x000000 0x000002 0x000004 0x000014 In Program Memory, the Interrupt Vector Table (IVT) is followed by the Alternate Interrupt Vector Table (AIVT), as shown in Figure 5-2. Access to the Alternate Vector Table is provided by the ALTIVT bit in the INTCON2 register. If the ALTIVT bit is set, all interrupt and exception processes will use the alternate vectors instead of the default vectors. The alternate vectors are organized in the same manner as the default vectors. The AIVT supports emulation and debugging efforts by providing a means to switch between an application and a support environment, without requiring the interrupt vectors to be reprogrammed. This feature also enables switching between applications for evaluation of different software algorithms at run time. If the AIVT is not required, the program memory allocated to the AIVT may be used for other purposes. AIVT is not a protected section and may be freely programmed by the user. 5.6 When the processor vectors to an interrupt, the PUSH.S instruction can be used to store the current value of the aforementioned registers into their respective shadow registers. If an ISR of a certain priority uses the PUSH.S and POP.S instructions for fast context saving, then a higher priority ISR should not include the same instructions. Users must save the key registers in software during a lower priority interrupt, if the higher priority ISR uses fast context saving. 0x0000FE External Interrupt Requests The interrupt controller supports up to five external interrupt request signals, INT0-INT4. These inputs are edge sensitive; they require a low-to-high or a high-tolow transition to generate an interrupt request. The INTCON2 register has five bits, INT0EP-INT4EP, that select the polarity of the edge detection circuitry. 5.8 0x000094 Fast Context Saving A context saving option is available using shadow registers. Shadow registers are provided for the DC, N, OV, Z and C bits in SR, and the registers W0 through W3. The shadows are only one level deep. The shadow registers are accessible using the PUSH.S and POP.S instructions only. 5.7 0x00007E 0x000080 0x000082 0x000084 Alternate Vector Table Wake-up from Sleep and Idle The interrupt controller may be used to wake up the processor from either Sleep or Idle modes, if Sleep or Idle mode is active when the interrupt is generated. If an enabled interrupt request of sufficient priority is received by the interrupt controller, then the standard interrupt request is presented to the processor. At the same time, the processor will wake-up from Sleep or Idle and begin execution of the Interrupt Service Routine (ISR) needed to process the interrupt request. Preliminary DS70082G-page 55 DS70082G-page 56 00A4 00A6 00A8 00AA -- -- u = uninitialized bit IPC8 IPC9 IPC10 IPC11 Legend: Preliminary C1IE ADIE -- -- -- -- -- -- -- -- -- -- -- -- -- -- U2TXIF U1RXIF -- OVBTE Bit 9 -- LVDIE SPI2IE SPI1IE QEIIF U2RXIF SPI1IF -- COVTE Bit 8 -- LVDIP<2:0> C2IP<2:0> OC7IP<2:0> IC5IP<2:0> SPI2IP<2:0> T5IP<2:0> IC8IP<2:0> MI2CIP<2:0> U1TXIP<2:0> T2IP<2:0> OC1IP<2:0> -- -- QEIIE U2TXIE U2RXIE U1TXIE U1RXIE LVDIF SPI2IF U1TXIF -- OVATE Bit 10 -- -- -- -- -- -- -- -- -- -- -- -- PWMIE INT2IE T3IE PWMIF INT2IF T3IF -- -- Bit 7 -- -- C2IE T5IE T2IE C2IF T5IF T2IF -- -- Bit 6 Bit 4 -- -- INT41IP<2:0> OC6IP<2:0> IC4IP<2:0> U2TXIP<2:0> T4IP<2:0> IC7IP<2:0> SI2CIP<2:0> U1RXIP<2:0> OC2IP<2:0> -- -- INT3IE OC4IE IC2IE INT3IF OC4IF IC2IF INT4EP MATHERR IC1IP<2:0> INT4IE T4IE OC2IE INT4IF T4IF OC2IF -- -- Bit 5 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. -- FLTAIP<2:0> -- OC8IP<2:0> -- PWMIP<2:0> IC6IP<2:0> -- -- C1IP<2:0> INT2IP<2:0> -- -- CNIP<2:0> 00A2 C1IF ADIF FLTBIE FLTAIE IC3IE NVMIE OC3IP<2:0> IPC7 IC3IF -- -- Bit 11 FLTBIF FLTAIF -- 00A0 -- -- Bit 12 NVMIF -- IPC6 ADIP<2:0> -- 009E 0098 IPC2 T31P<2:0> -- IPC5 0096 IPC1 T1IP<2:0> -- IC4IE SI2CIE -- IC4IF -- -- -- 009A 0094 IPC0 IC5IE IC6IE 009C 0090 IEC2 -- MI2CIE -- CNIE IC5IF IC6IF IPC4 008E IEC1 -- -- SI2CIF -- -- MI2CIF Bit 13 Bit 14 IPC3 0088 008C IEC0 0086 IFS1 IFS2 0084 IFS0 CNIF 0080 NSTDIS 0082 ALTIVT Bit 15 INTCON1 ADR INTERRUPT CONTROLLER REGISTER MAP INTCON2 SFR Name TABLE 5-2: -- -- -- -- -- -- -- -- -- -- -- -- OC8IE OC3IE T1IE OC8IF OC3IF T1IF INT3EP ADDRERR Bit 3 Bit 1 OC7IE IC8IE OC1IE OC7IF IC8IF OC1IF INT2EP FLTBIP<2:0> QEIIP<2:0> INT3IP<2:0> OC5IP<2:0> IC3IP<2:0> U2RXIP<2:0> OC4IP<2:0> INT1IP<2:0> NVMIP<2:0> SPI1IP<2:0> IC2IP<2:0> INT0IP<2:0> OC6IE IC7IE IC1IE OC6IF IC7IF IC1IF INT1EP STKERR OSCFAIL Bit 2 0000 0000 0000 0000 Reset State OC5IE INT1IE INT0IE OC5IF INT1IF INT0IF 0000 0000 0000 0100 0100 0100 0000 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0100 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 INT0EP 0000 0000 0000 0000 -- Bit 0 dsPIC30F 2004 Microchip Technology Inc. dsPIC30F 6.0 FLASH PROGRAM MEMORY 6.2 Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). RTSP is accomplished using TBLRD (table read) and TBLWT (table write) instructions. With RTSP, the user may erase and program 32 instructions (96 bytes) at a time. 6.3 The dsPIC30F family of devices contains internal program Flash memory for executing user code. There are two methods by which the user can program this memory: 1. 2. 6.1 Table Instruction Operation Summary The TBLRDL and the TBLWTL instructions are used to read or write to bits <15:0> of program memory. TBLRDL and TBLWTL can access program memory in Word or Byte mode. In-Circuit Serial ProgrammingTM (ICSPTM) Run Time Self-Programming (RTSP) The TBLRDH and TBLWTH instructions are used to read or write to bits<23:16> of program memory. TBLRDH and TBLWTH can access program memory in Word or Byte mode. In-Circuit Serial Programming (ICSP) A 24-bit program memory address is formed using bits<7:0> of the TBLPAG register and the effective address (EA) from a W register specified in the table instruction, as shown in Figure 6-1. dsPIC30F devices can be serially programmed while in the end application circuit. This is simply done with two lines for Programming Clock and Programming Data (which are named PGC and PGD respectively), and three other lines for Power (VDD), Ground (VSS) and Master Clear (MCLR). this allows customers to manufacture boards with unprogrammed devices, and then program the microcontroller just before shipping the product. This also allows the most recent firmware or a custom firmware to be programmed. FIGURE 6-1: Run Time Self-Programming (RTSP) ADDRESSING FOR TABLE AND NVM REGISTERS 24 bits Using Program Counter Program Counter 0 0 NVMADR Reg EA Using NVMADR Addressing 1/0 NVMADRU Reg 8 bits 16 bits Working Reg EA Using Table Instruction User/Configuration Space Select 2004 Microchip Technology Inc. 1/0 TBLPAG Reg 8 bits 16 bits 24-bit EA Preliminary Byte Select DS70082G-page 57 dsPIC30F 6.4 RTSP Operation 6.5.2 The dsPIC30F Flash program memory is organized into rows and panels. Each row consists of 32 instructions, or 96 bytes. Each panel consists of 128 rows, or 4K x 24 instructions. RTSP allows the user to erase one row (32 instructions) at a time and to program 32 instructions at one time. RTSP may be used to program multiple program memory panels, but the table pointer must be changed at each panel boundary. Each panel of program memory contains write latches that hold 32 instructions of programming data. Prior to the actual programming operation, the write data must be loaded into the panel write latches. The data to be programmed into the panel is loaded in sequential order into the write latches; instruction 0, instruction 1, etc. The instruction words loaded must always be from an even group of 32 address boundary. The basic sequence for RTSP programming is to set up a table pointer, then do a series of TBLWT instructions to load the write latches. Programming is performed by setting the special bits in the NVMCON register. 32 TBLWTL and 32 TBLWTH instructions are required to load the 32 instructions. All of the table write operations are single word writes (2 instruction cycles), because only the table latches are written. The actual programming operation is started by a special sequence of writes to the NVM control registers and takes nominally 2 msec. The Flash Program Memory is readable, writable and erasable during normal operation over the entire VDD range. 6.5 Control Registers * * * * NVMCON NVMADR NVMADRU NVMKEY 6.5.1 The NVMADR register is used to hold the lower two bytes of the effective address. The NVMADR register captures the EA<15:0> of the last table instruction that has been executed and selects the row to write. 6.5.3 6.5.4 NVMKEY REGISTER NVMKEY is a write-only register that is used for write protection. To start a programming or an erase sequence, the user must consecutively write 0x55 and 0xAA to the NVMKEY register. Refer to Section 6.6 for further details. 6.6 Programming Operations A complete programming sequence is necessary for programming or erasing the internal Flash in RTSP mode. A programming operation is nominally 2 msec in duration and the processor stalls (waits) until the operation is finished. Setting the WR bit (NVMCON<15>) starts the operation, and the WR bit is automatically cleared when the operation is finished. 6.6.1 PROGRAMMING ALGORITHM FOR PROGRAM FLASH The user can erase one row of program Flash memory at a time. The general process is: 2. 3. NVMCON REGISTER The NVMCON register controls which blocks are to be erased, which memory type is to be programmed, and start of the programming cycle. DS70082G-page 58 NVMADRU REGISTER The NVMADRU register is used to hold the upper byte of the effective address. The NVMADRU register captures the EA<23:16> of the last table instruction that has been executed. 1. The three SFRs used to read and write the program Flash memory are: NVMADR REGISTER Preliminary Read one row of program Flash (32 instruction words) and store into data RAM as a data "image". Update the data image with the desired new data. Erase program Flash row. a) Setup NVMCON register for multi-word, program Flash, erase, and set WREN bit. b) Write address of row to be erased into NVMADRU/NVMDR. c) Write `55' to NVMKEY. d) Write `AA' to NVMKEY. e) Set the WR bit. This will begin erase cycle. f) CPU will stall for the duration of the erase cycle. g) The WR bit is cleared when erase cycle ends. 2004 Microchip Technology Inc. dsPIC30F 4. 5. Write 32 instruction words of data from data RAM into the program Flash write latches. Program 32 instruction words into program Flash. a) Setup NVMCON register for multi-word, program Flash, program, and set WREN bit. b) Write `55' to NVMKEY. c) Write `AA' to NVMKEY. d) Set the WR bit. This will begin program cycle. EXAMPLE 6-1: e) 6. CPU will stall for duration of the program cycle. f) The WR bit is cleared by the hardware when program cycle ends. Repeat steps 1 through 5 as needed to program desired amount of program Flash memory. 6.6.2 ERASING A ROW OF PROGRAM MEMORY Example 6-1 shows a code sequence that can be used to erase a row (32 instructions) of program memory. ERASING A ROW OF PROGRAM MEMORY ; Setup NVMCON for erase operation, multi word ; program memory selected, and writes enabled MOV #0x4041,W0 ; ; MOV W0,NVMCON ; Init pointer to row to be ERASED MOV #tblpage(PROG_ADDR),W0 ; ; MOV W0,NVMADRU MOV #tbloffset(PROG_ADDR),W0 ; MOV W0, NVMADR ; DISI #5 ; ; MOV #0x55,W0 ; MOV W0,NVMKEY MOV #0xAA,W1 ; ; MOV W1,NVMKEY BSET NVMCON,#WR ; NOP ; NOP ; 2004 Microchip Technology Inc. write Init NVMCON SFR Initialize PM Page Boundary SFR Intialize in-page EA[15:0] pointer Intialize NVMADR SFR Block all interrupts with priority <7 for next 5 instructions Write the 0x55 key Write the 0xAA key Start the erase sequence Insert two NOPs after the erase command is asserted Preliminary DS70082G-page 59 dsPIC30F 6.6.3 LOADING WRITE LATCHES Example 6-2 shows a sequence of instructions that can be used to load the 96 bytes of write latches. Thirty-two TBLWTL and32 TBLWTH instructions are needed to load the write latches selected by the table pointer. EXAMPLE 6-2: LOADING WRITE LATCHES ; Set up a pointer to the first program memory location to be written ; program memory selected, and writes enabled MOV #0x0000,W0 ; ; Initialize PM Page Boundary SFR MOV W0,TBLPAG MOV #0x6000,W0 ; An example program memory address ; Perform the TBLWT instructions to write the latches ; 0th_program_word MOV #LOW_WORD_0,W2 ; MOV #HIGH_BYTE_0,W3 ; ; Write PM low word into program latch TBLWTL W2,[W0] ; Write PM high byte into program latch TBLWTH W3,[W0++] ; 1st_program_word MOV #LOW_WORD_1,W2 ; MOV #HIGH_BYTE_1,W3 ; ; Write PM low word into program latch TBLWTL W2,[W0] ; Write PM high byte into program latch TBLWTH W3,[W0++] ; 2nd_program_word MOV #LOW_WORD_2,W2 ; MOV #HIGH_BYTE_2,W3 ; ; Write PM low word into program latch TBLWTL W2, [W0] ; Write PM high byte into program latch TBLWTH W3, [W0++] * * * ; 31st_program_word MOV #LOW_WORD_3,W2 ; MOV #HIGH_BYTE_3,W3 ; ; Write PM low word into program latch TBLWTL W2, [W0] ; Write PM high byte into program latch TBLWTH W3, [W0++] Note: In Example 6-2, the contents of the upper byte of W3 has no effect. DS70082G-page 60 Preliminary 2004 Microchip Technology Inc. dsPIC30F 6.6.4 INITIATING THE PROGRAMMING SEQUENCE For protection, the write initiate sequence for NVMKEY must be used to allow any erase or program operation to proceed. After the programming command has been executed, the user must wait for the programming time until programming is complete. The two instructions following the start of the programming sequence should be NOPs. EXAMPLE 6-3: INITIATING A PROGRAMMING SEQUENCE DISI #5 MOV MOV MOV MOV BSET NOP NOP #0x55,W0 W0,NVMKEY #0xAA,W1 W1,NVMKEY NVMCON,#WR 2004 Microchip Technology Inc. ; Block all interrupts with priority <7 ; for next 5 instructions ; ; ; ; ; ; Write the 0x55 key Write the 0xAA key Start the erase sequence Insert two NOPs after the erase command is asserted Preliminary DS70082G-page 61 DS70082G-page 62 Bit 13 -- -- WRERR -- -- -- -- -- -- -- -- -- Bit 12 Bit 11 Bit 10 -- -- -- Bit 9 Bit 8 -- Bit 7 -- -- NVMADR<15:0> TWRI Bit 6 Bit 5 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. -- -- NVMKEY 0766 Legend: u = uninitialized bit NVMADRU Bit 14 WREN -- 0762 0764 NVMADR WR Bit 15 NVM REGISTER MAP -- 0760 Addr. NVMCON File Name TABLE 6-1: Bit 3 Bit 2 KEY<7:0> NVMADR<23:16> PROGOP<6:0> Bit 4 Bit 1 Bit 0 All RESETS 0000 0000 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu 0000 0000 0000 0000 dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 7.0 DATA EEPROM MEMORY Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). The Data EEPROM Memory is readable and writable during normal operation over the entire VDD range. The data EEPROM memory is directly mapped in the program memory address space. The four SFRs used to read and write the program Flash memory are used to access data EEPROM memory, as well. As described in Section 4.0, these registers are: * * * * NVMCON NVMADR NVMADRU NVMKEY Control bit WR initiates write operations, similar to program Flash writes. This bit cannot be cleared, only set, in software. This bit is cleared in hardware at the completion of the write operation. The inability to clear the WR bit in software prevents the accidental or premature termination of a write operation. The WREN bit, when set, will allow a write operation. On power-up, the WREN bit is clear. The WRERR bit is set when a write operation is interrupted by a MCLR Reset, or a WDT Time-out Reset, during normal operation. In these situations, following Reset, the user can check the WRERR bit and rewrite the location. The address register NVMADR remains unchanged. Note: 7.1 The EEPROM data memory allows read and write of single words and 16-word blocks. When interfacing to data memory, NVMADR, in conjunction with the NVMADRU register, is used to address the EEPROM location being accessed. TBLRDL and TBLWTL instructions are used to read and write data EEPROM. The dsPIC30F devices have up to 8 Kbytes (4K words) of data EEPROM, with an address range from 0x7FF000 to 0x7FFFFE. Interrupt flag bit NVMIF in the IFS0 register is set when write is complete. It must be cleared in software. Reading the Data EEPROM A TBLRD instruction reads a word at the current program word address. This example uses W0 as a pointer to data EEPROM. The result is placed in register W4, as shown in Example 7-1. EXAMPLE 7-1: MOV MOV MOV TBLRDL DATA EEPROM READ #LOW_ADDR_WORD,W0 ; Init Pointer #HIGH_ADDR_WORD,W1 W1,TBLPAG [ W0 ], W4 ; read data EEPROM A word write operation should be preceded by an erase of the corresponding memory location(s). The write typically requires 2 ms to complete, but the write time will vary with voltage and temperature. A program or erase operation on the data EEPROM does not stop the instruction flow. The user is responsible for waiting for the appropriate duration of time before initiating another data EEPROM write/erase operation. Attempting to read the data EEPROM while a programming or erase operation is in progress results in unspecified data. 2004 Microchip Technology Inc. Preliminary DS70082G-page 63 dsPIC30F 7.2 7.2.1 Erasing Data EEPROM ERASING A BLOCK OF DATA EEPROM In order to erase a block of data EEPROM, the NVMADRU and NVMADR registers must initially point to the block of memory to be erased. Configure NVMCON for erasing a block of data EEPROM, and set the ERASE and WREN bits in NVMCON register. Setting the WR bit initiates the erase, as shown in Example 7-2. EXAMPLE 7-2: DATA EEPROM BLOCK ERASE ; Select data EEPROM block, ERASE, WREN bits MOV #4045,W0 ; Initialize NVMCON SFR MOV W0,NVMCON ; Start erase cycle by setting WR after writing key sequence DISI #5 ; Block all interrupts with priority <7 ; for next 5 instructions MOV #0x55,W0 ; ; Write the 0x55 key MOV W0,NVMKEY MOV #0xAA,W1 ; MOV W1,NVMKEY ; Write the 0xAA key BSET NVMCON,#WR ; Initiate erase sequence NOP NOP ; Erase cycle will complete in 2mS. CPU is not stalled for the Data Erase Cycle ; User can poll WR bit, use NVMIF or Timer IRQ to determine erasure complete 7.2.2 ERASING A WORD OF DATA EEPROM The TBLPAG and NVMADR registers must point to the block. Select erase a block of data Flash, and set the ERASE and WREN bits in NVMCON register. Setting the WR bit initiates the erase, as shown in Example 7-3. EXAMPLE 7-3: DATA EEPROM WORD ERASE ; Select data EEPROM word, ERASE, WREN bits MOV #4044,W0 MOV W0,NVMCON ; Start erase cycle by setting WR after writing key sequence DISI #5 ; Block all interrupts with priority <7 ; for next 5 instructions MOV #0x55,W0 ; ; Write the 0x55 key MOV W0,NVMKEY MOV #0xAA,W1 ; ; Write the 0xAA key MOV W1,NVMKEY BSET NVMCON,#WR ; Initiate erase sequence NOP NOP ; Erase cycle will complete in 2mS. CPU is not stalled for the Data Erase Cycle ; User can poll WR bit, use NVMIF or Timer IRQ to determine erasure complete DS70082G-page 64 Preliminary 2004 Microchip Technology Inc. dsPIC30F 7.3 Writing to the Data EEPROM To write an EEPROM data location, the following sequence must be followed: 1. 2. 3. Erase data EEPROM word. a) Select word, data EEPROM, erase and set WREN bit in NVMCON register. b) Write address of word to be erased into NVMADRU/NVMADR. c) Enable NVM interrupt (optional). d) Write `55' to NVMKEY. e) Write `AA' to NVMKEY. f) Set the WR bit. This will begin erase cycle. g) Either poll NVMIF bit or wait for NVMIF interrupt. h) The WR bit is cleared when the erase cycle ends. Write data word into data EEPROM write latches. Program 1 data word into data EEPROM. a) Select word, data EEPROM, program, and set WREN bit in NVMCON register. b) Enable NVM write done interrupt (optional). c) Write `55' to NVMKEY. d) Write `AA' to NVMKEY. e) Set The WR bit. This will begin program cycle. f) Either poll NVMIF bit or wait for NVM interrupt. g) The WR bit is cleared when the write cycle ends. EXAMPLE 7-4: The write will not initiate if the above sequence is not exactly followed (write 0x55 to NVMKEY, write 0xAA to NVMCON, then set WR bit) for each word. It is strongly recommended that interrupts be disabled during this code segment. Additionally, the WREN bit in NVMCON must be set to enable writes. This mechanism prevents accidental writes to data EEPROM, due to unexpected code execution. The WREN bit should be kept clear at all times, except when updating the EEPROM. The WREN bit is not cleared by hardware. After a write sequence has been initiated, clearing the WREN bit will not affect the current write cycle. The WR bit will be inhibited from being set unless the WREN bit is set. The WREN bit must be set on a previous instruction. Both WR and WREN cannot be set with the same instruction. At the completion of the write cycle, the WR bit is cleared in hardware and the Non-Volatile Memory Write Complete Interrupt Flag bit (NVMIF) is set. The user may either enable this interrupt, or poll this bit. NVMIF must be cleared by software. 7.3.1 WRITING A WORD OF DATA EEPROM Once the user has erased the word to be programmed, then a table write instruction is used to write one write latch, as shown in Example 7-4. DATA EEPROM WORD WRITE ; Point to data memory MOV #LOW_ADDR_WORD,W0 MOV #HIGH_ADDR_WORD,W1 MOV W1,TBLPAG MOV #LOW(WORD),W2 TBLWTL W2,[ W0] ; The NVMADR captures last table access address ; Select data EEPROM for 1 word op MOV #0x4004,W0 MOV W0,NVMCON ; Operate key to allow write operation DISI #5 MOV MOV MOV MOV BSET NOP NOP ; Write cycle will ; User can poll WR #0x55,W0 W0,NVMKEY #0xAA,W1 W1,NVMKEY NVMCON,#WR ; Init pointer ; Get data ; Write data ; Block all interrupts with priority <7 ; for next 5 instructions ; Write the 0x55 key ; Write the 0xAA key ; Initiate program sequence complete in 2mS. CPU is not stalled for the Data Write Cycle bit, use NVMIF or Timer IRQ to determine write complete 2004 Microchip Technology Inc. Preliminary DS70082G-page 65 dsPIC30F 7.3.2 WRITING A BLOCK OF DATA EEPROM To write a block of data EEPROM, write to all sixteen latches first, then set the NVMCON register and program the block. EXAMPLE 7-5: 7.4 DATA EEPROM BLOCK WRITE MOV MOV MOV MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV TBLWTL MOV MOV DISI #LOW_ADDR_WORD,W0 #HIGH_ADDR_WORD,W1 W1,TBLPAG #data1,W2 W2,[ W0]++ #data2,W2 W2,[ W0]++ #data3,W2 W2,[ W0]++ #data4,W2 W2,[ W0]++ #data5,W2 W2,[ W0]++ #data6,W2 W2,[ W0]++ #data7,W2 W2,[ W0]++ #data8,W2 W2,[ W0]++ #data9,W2 W2,[ W0]++ #data10,W2 W2,[ W0]++ #data11,W2 W2,[ W0]++ #data12,W2 W2,[ W0]++ #data13,W2 W2,[ W0]++ #data14,W2 W2,[ W0]++ #data15,W2 W2,[ W0]++ #data16,W2 W2,[ W0]++ #0x400A,W0 W0,NVMCON #5 MOV MOV MOV MOV BSET NOP NOP #0x55,W0 W0,NVMKEY #0xAA,W1 W1,NVMKEY NVMCON,#WR ; Init pointer ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Get 1st data write data Get 2nd data write data Get 3rd data write data Get 4th data write data Get 5th data write data Get 6th data write data Get 7th data write data Get 8th data write data Get 9th data write data Get 10th data write data Get 11th data write data Get 12th data write data Get 13th data write data Get 14th data write data Get 15th data write data Get 16th data write data. The NVMADR captures last table access address. Select data EEPROM for multi word op Operate Key to allow program operation Block all interrupts with priority <7 for next 5 instructions ; Write the 0x55 key ; Write the 0xAA key ; Start write cycle Write Verify 7.5 Depending on the application, good programming practice may dictate that the value written to the memory should be verified against the original value. This should be used in applications where excessive writes can stress bits near the specification limit. Protection Against Spurious Write There are conditions when the device may not want to write to the data EEPROM memory. To protect against spurious EEPROM writes, various mechanisms have been built-in. On power-up, the WREN bit is cleared; also, the Power-up Timer prevents EEPROM write. The write initiate sequence and the WREN bit together, help prevent an accidental write during brown-out, power glitch or software malfunction. DS70082G-page 66 Preliminary 2004 Microchip Technology Inc. dsPIC30F 8.0 I/O PORTS All port pins have three registers directly associated with the operation of the port pin. The data direction register (TRISx) determines whether the pin is an input or an output. If the data direction bit is a `1', then the pin is an input. All port pins are defined as inputs after a Reset. Reads from the latch (LATx), read the latch. Writes to the latch, write the latch (LATx). Reads from the port (PORTx), read the port pins, and writes to the port pins, write the latch (LATx). Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). All of the device pins (except VDD, VSS, MCLR and OSC1/CLKIN) are shared between the peripherals and the parallel I/O ports. Any bit and its associated data and control registers that are not valid for a particular device will be disabled. That means the corresponding LATx and TRISx registers and the port pin will read as zeros. All I/O input ports feature Schmitt Trigger inputs for improved noise immunity. 8.1 When a pin is shared with another peripheral or function that is defined as an input only, it is nevertheless regarded as a dedicated port because there is no other competing source of outputs. An example is the INT4 pin. Parallel I/O (PIO) Ports When a peripheral is enabled and the peripheral is actively driving an associated pin, the use of the pin as a general purpose output pin is disabled. The I/O pin may be read, but the output driver for the parallel port bit will be disabled. If a peripheral is enabled, but the peripheral is not actively driving a pin, that pin may be driven by a port. FIGURE 8-1: The format of the registers for PORTA are shown in Table 8-1. The TRISA (Data Direction Control) register controls the direction of the RA<7:0> pins, as well as the INTx pins and the VREF pins. The LATA register supplies data to the outputs, and is readable/writable. Reading the PORTA register yields the state of the input pins, while writing the PORTA register modifies the contents of the LATA register. BLOCK DIAGRAM OF A DEDICATED PORT STRUCTURE Dedicated Port Module Read TRIS I/O Cell TRIS Latch Data Bus D WR TRIS CK Q Data Latch D WR LAT + WR Port Q I/O Pad CK Read LAT Read Port 2004 Microchip Technology Inc. Preliminary DS70082G-page 67 dsPIC30F A parallel I/O (PIO) port that shares a pin with a peripheral is, in general, subservient to the peripheral. The peripheral's output buffer data and control signals are provided to a pair of multiplexers. The multiplexers select whether the peripheral or the associated port has ownership of the output data and control signals of the I/O pad cell. Figure 8-2 shows how ports are shared with other peripherals, and the associated I/O cell (pad) to which they are connected. Table 8-2 through Table 8-7 show the formats of the registers for the shared ports, PORTB through PORTG. Note: 8.2 The actual bits in use vary between devices. Pins configured as digital inputs will not convert an analog input. Analog levels on any pin that is defined as a digital input (including the ANx pins), may cause the input buffer to consume current that exceeds the device specifications. 8.2.1 I/O PORT WRITE/READ TIMING One instruction cycle is required between a port direction change or port write operation and a read operation of the same port. Typically this instruction would be a NOP. EXAMPLE 8-1: Configuring Analog Port Pins The use of the ADPCFG and TRIS registers control the operation of the A/D port pins. The port pins that are desired as analog inputs must have their corresponding TRIS bit set (input). If the TRIS bit is cleared (output), the digital output level (VOH or VOL) will be converted. FIGURE 8-2: When reading the PORT register, all pins configured as analog input channel will read as cleared (a low level). PORT WRITE/READ EXAMPLE MOV 0xFF00, W0 MOV NOP btss W0, TRISBB PORTB, #13 ; ; ; ; ; Configure PORTB<15:8> as inputs and PORTB<7:0> as outputs Delay 1 cycle Next Instruction BLOCK DIAGRAM OF A SHARED PORT STRUCTURE Output Multiplexers Peripheral Module Peripheral Input Data Peripheral Module Enable I/O Cell Peripheral Output Enable 1 Peripheral Output Data 0 PIO Module 1 Output Enable Output Data 0 Read TRIS I/O Pad Data Bus D WR TRIS Q CK TRIS Latch D WR LAT + WR Port Q CK Data Latch Read LAT Input Data Read Port DS70082G-page 68 Preliminary 2004 Microchip Technology Inc. 2004 Microchip Technology Inc. 02C8 02CB LATB15 LATB14 u = uninitialized bit PORTB LATB Legend: 02D0 LATC Preliminary Bit 11 RB14 RB13 LATB13 RB12 LATB12 Bit 14 Bit 13 LATC15 RC15 LATC13 RC13 Bit 10 LATA10 RA10 RD14 LATD13 RD13 LATD12 RD12 Bit 12 -- -- -- Bit 15 -- -- -- Bit 14 -- -- -- Bit 13 -- -- -- Bit 12 Bit 10 Bit 9 -- -- -- -- -- -- RD9 Bit 7 -- -- -- Bit 7 Bit 6 -- -- -- Bit 6 Bit 5 -- -- -- Bit 5 Bit 4 -- -- -- Bit 4 Bit 3 -- -- -- Bit 3 Bit 2 -- -- -- Bit 2 Bit 1 -- -- -- Bit 1 Bit 0 -- -- -- Bit 0 TRISE8 RE8 LATE8 TRISE9 RE9 LATE9 Bit 7 LATD7 RD7 LATE7 RE7 Bit 6 Bit 6 LATD6 RD6 LATE6 RE6 RB5 Bit 5 -- -- -- LATE5 RE5 TRISE5 Bit 5 LATD5 RD5 RB4 RB2 -- LATC3 TRISE4 Bit 4 LATD4 RD4 LATE4 LATE3 RE3 TRISE3 Bit 3 LATD3 RD3 TRISD3 LATE2 RE2 Bit 1 RC1 LATE1 RE1 TRISE1 Bit 1 LATD1 RD1 TRISD1 Bit 1 LATC1 TRISE2 Bit 2 LATD2 RD2 RB1 LATB1 TRISC1 TRISD2 Bit 2 -- RC3 Bit 3 -- TRISC3 LATB2 Bit 2 Bit 4 RE4 RB3 LATB3 Bit 3 LATB4 TRISD4 Bit 4 LATB5 TRISD5 -- -- -- Bit 5 TRISD6 Bit 6 -- -- -- RB6 LATB6 TRISE6 TRISD7 Bit 7 -- -- -- TRISE7 LATD8 RD8 TRISD8 Bit 8 -- -- -- RB7 LATB7 Bit 7 LATB8 RB8 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 1110 0000 0000 1010 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 1111 1111 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 1100 0110 0000 0000 Reset State Reset State 0000 0000 0000 0000 0000 0000 0000 0000 LATE0 RE0 0000 0000 0000 0000 0000 0000 0000 0000 TRISE0 0000 0011 1111 1111 Bit 0 LATD0 RD0 TRISD0 1111 1111 1111 1111 Bit 0 -- -- -- Bit 0 LATB0 RB0 TRISB8 TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 Bit 8 -- -- -- Bit 8 Bit 8 Bit 8 LATD9 Bit 9 LATD10 RD10 Bit 10 LATD11 RD11 Bit 11 PORTE REGISTER MAP u = uninitialized bit 02DC LATE Legend: 02D8 02DA PORTE Addr. TRISE SFR Name TABLE 8-5: LATD 02D6 LATD15 LATD14 Legend: u = uninitialized bit RD15 Bit 13 -- -- -- Bit 9 02D2 TRISD15 TRISD14 TRISD13 TRISD12 TRISD11 TRISD10 TRISD9 PORTD 02D4 Bit 14 -- -- -- Bit 10 RB9 LATB9 TRISD Bit 15 RB10 LATB10 TRISB9 Bit 9 LATA9 RA9 Addr. -- -- -- Bit 11 Bit 11 -- -- -- Bit 12 PORTD REGISTER MAP LATC14 RC14 TRISC15 TRISC14 TRISC13 Bit 15 RB11 LATB11 Bit 9 TRISA10 TRISA9 Bit 10 SFR Name TABLE 8-4: Bit 12 PORTC REGISTER MAP RB15 u = uninitialized bit 02CE Legend: 02CC PORTC Addr. TRISC SFR Name Bit 13 -- -- -- Bit 11 TRISB15 TRISB14 TRISB13 TRISB12 TRISB11 TRISB10 02C6 Bit 14 TRISB Bit 15 Addr. TABLE 8-3: -- -- -- -- -- Bit 12 -- Bit 13 PORTB REGISTER MAP SFR Name TABLE 8-2: 02C4 LATA15 LATA14 u = uninitialized bit RA14 LATA Legend: RA15 TRISA15 TRISA14 02C2 Bit 14 02C0 Bit 15 TRISA Addr. PORTA REGISTER MAP PORTA SFR Name TABLE 8-1: dsPIC30F DS70082G-page 69 02E0 02E2 LATF DS70082G-page 70 -- -- -- -- Bit 13 -- -- -- Bit 12 -- 02E4 02E6 02E8 u = uninitialized bit TRISG PORTG LATG Legend: -- -- -- Bit 14 -- -- -- Bit 13 -- -- -- Bit 12 -- -- -- -- -- -- Bit 10 -- -- -- Bit 10 Bit 11 -- -- -- Bit 11 RF7 RF8 LATG8 RG8 LATG9 TRISG8 RG9 Bit 8 LATG7 RG7 Bit 6 RF5 -- -- -- Bit 5 LATF5 LATG6 RG6 Bit 5 TRISF5 TRISG6 Bit 6 LATF6 RF6 TRISF6 TRISG7 Bit 7 LATF7 TRISF7 TRISF8 LATF8 Bit 7 Bit 8 TRISG9 Bit 9 -- -- -- Bit 9 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. -- -- Bit 15 PORTG REGISTER MAP Addr. SFR Name -- -- -- Bit 14 u = uninitialized bit TABLE 8-7: Legend: -- 02EE TRISF PORTF -- Bit 15 PORTF REGISTER MAP Addr. SFR Name TABLE 8-6: -- -- -- Bit 4 LATF4 RF4 TRISF4 Bit 4 LATG3 RG3 TRISG3 Bit 3 LATF3 RF3 TRISF3 Bit 3 LATG2 RG2 TRISG2 Bit 2 LATF2 RF2 TRISF2 Bit 2 LATG1 RG1 TRISG1 Bit 1 LATF1 RF1 TRISF1 Bit 1 LATG0 RG0 TRISG0 Bit 0 LATF0 RF0 TRISF0 Bit 0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0011 1100 1111 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0001 1111 1111 Reset State dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 8.3 Input Change Notification Module The Input Change Notification module provides the dsPIC30F devices the ability to generate interrupt requests to the processor in response to a change-ofstate on selected input pins. This module is capable of detecting input change-of-states even in Sleep mode, when the clocks are disabled. There are up to 22 external signals (CN0 through CN21) that may be selected (enabled) for generating an interrupt request on a change-of-state. TABLE 8-8: INPUT CHANGE NOTIFICATION REGISTER MAP (BITS 15-8) SFR Name Addr. Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Reset State CNEN1 00C0 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE 0000 0000 0000 0000 -- -- -- -- -- -- CNEN2 00C2 CNPU1 00C4 CNPU2 Legend: 00C6 CN15PUE CN14PUE CN13PUE CN12PUE CN11PUE CN10PUE -- -- -- -- -- -- -- -- 0000 0000 0000 0000 CN9PUE CN8PUE 0000 0000 0000 0000 -- -- 0000 0000 0000 0000 Bit 0 Reset State u = uninitialized bit TABLE 8-9: INPUT CHANGE NOTIFICATION REGISTER MAP (BITS 7-0) SFR Name Addr. Bit 7 Bit 6 CNEN1 00C0 CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE 0000 0000 0000 0000 CNEN2 00C2 -- -- CN21IE CN20IE CN19IE CN18IE CN17IE CN16IE 0000 0000 0000 0000 CNPU1 00C4 CN7PUE CN6PUE CN5PUE CN4PUE CN3PUE CN2PUE CN1PUE CN0PUE 0000 0000 0000 0000 CNPU2 00C6 -- -- CN21PUE CN20PUE CN19PUE CN18PUE CN17PUE CN16PUE 0000 0000 0000 0000 Legend: Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 u = uninitialized bit Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. 2004 Microchip Technology Inc. Preliminary DS70082G-page 71 dsPIC30F NOTES: DS70082G-page 72 Preliminary 2004 Microchip Technology Inc. dsPIC30F 9.0 TIMER1 MODULE These operating modes are determined by setting the appropriate bit(s) in the 16-bit SFR, T1CON. Figure 9-1 presents a block diagram of the 16-bit timer module. Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). 16-bit Timer Mode: In the 16-bit Timer mode, the timer increments on every instruction cycle up to a match value, preloaded into the period register PR1, then resets to `0' and continues to count. This section describes the 16-bit General Purpose (GP) Timer1 module and associated operational modes. Figure 9-1 depicts the simplified block diagram of the 16-bit Timer1 Module. When the CPU goes into the Idle mode, the timer will stop incrementing, unless the TSIDL (T1CON<13>) bit = 0. If TSIDL = 1, the timer module logic will resume the incrementing sequence upon termination of the CPU Idle mode. The following sections provide a detailed description, including setup and control registers along with associated block diagrams for the operational modes of the timers. 16-bit Synchronous Counter Mode: In the 16-bit Synchronous Counter mode, the timer increments on the rising edge of the applied external clock signal, which is synchronized with the internal phase clocks. The timer counts up to a match value preloaded in PR1, then resets to `0' and continues. The Timer1 module is a 16-bit timer which can serve as the time counter for the real-time clock, or operate as a free running interval timer/counter. The 16-bit timer has the following modes: When the CPU goes into the Idle mode, the timer will stop incrementing, unless the respective TSIDL bit = 0. If TSIDL = 1, the timer module logic will resume the incrementing sequence upon termination of the CPU Idle mode. * 16-bit Timer * 16-bit Synchronous Counter * 16-bit Asynchronous Counter Further, the following operational characteristics are supported: 16-bit Asynchronous Counter Mode: In the 16-bit Asynchronous Counter mode, the timer increments on every rising edge of the applied external clock signal. The timer counts up to a match value preloaded in PR1, then resets to `0' and continues. * Timer gate operation * Selectable prescaler settings * Timer operation during CPU Idle and Sleep modes * Interrupt on 16-bit period register match or falling edge of external gate signal FIGURE 9-1: When the timer is configured for the Asynchronous mode of operation and the CPU goes into the Idle mode, the timer will stop incrementing if TSIDL = 1. 16-BIT TIMER1 MODULE BLOCK DIAGRAM PR1 Equal Comparator x 16 Reset TSYNC (3) TMR1 1 Sync 0 1 Q D Q CK TGATE TCS TGATE T1IF Event Flag 0 TGATE SOSCO/ T1CK 1X LPOSCEN SOSCI 2004 Microchip Technology Inc. Gate Sync 01 TCY 00 Preliminary TON TCKPS<1:0> 2 Prescaler 1, 8, 64, 256 DS70082G-page 73 dsPIC30F 9.1 Timer Gate Operation 9.4 Timer Interrupt The 16-bit timer can be placed in the Gated Time Accumulation mode. This mode allows the internal TCY to increment the respective timer when the gate input signal (T1CK pin) is asserted high. Control bit TGATE (T1CON<6>) must be set to enable this mode. The timer must be enabled (TON = 1) and the timer clock source set to internal (TCS = 0). The 16-bit timer has the ability to generate an interrupt on period match. When the timer count matches the period register, the T1IF bit is asserted and an interrupt will be generated, if enabled. The T1IF bit must be cleared in software. The timer interrupt flag T1IF is located in the IFS0 control register in the Interrupt Controller. When the CPU goes into the Idle mode, the timer will stop incrementing, unless TSIDL = 0. If TSIDL = 1, the timer will resume the incrementing sequence upon termination of the CPU Idle mode. When the Gated Time Accumulation mode is enabled, an interrupt will also be generated on the falling edge of the gate signal (at the end of the accumulation cycle). 9.2 Timer Prescaler The input clock (FOSC/4 or external clock) to the 16-bit Timer, has a prescale option of 1:1, 1:8, 1:64, and 1:256 selected by control bits TCKPS<1:0> (T1CON<5:4>). The prescaler counter is cleared when any of the following occurs: * a write to the TMR1 register * clearing of the TON bit (T1CON<15>) * device Reset such as POR and BOR However, if the timer is disabled (TON = 0), then the timer prescaler cannot be reset since the prescaler clock is halted. TMR1 is not cleared when T1CON is written. It is cleared by writing to the TMR1 register. 9.3 Enabling an interrupt is accomplished via the respective timer interrupt enable bit, T1IE. The timer interrupt enable bit is located in the IEC0 control register in the Interrupt Controller. 9.5 Real-Time Clock Timer1, when operating in Real-Time Clock (RTC) mode, provides time-of-day and event time stamping capabilities. Key operational features of the RTC are: * * * * Operation from 32 kHz LP oscillator 8-bit prescaler Low power Real-Time Clock Interrupts These Operating modes are determined by setting the appropriate bit(s) in the T1CON Control register. FIGURE 9-2: Timer Operation During Sleep Mode RECOMMENDED COMPONENTS FOR TIMER1 LP OSCILLATOR RTC During CPU Sleep mode, the timer will operate if: * The timer module is enabled (TON = 1) and * The timer clock source is selected as external (TCS = 1) and * The TSYNC bit (T1CON<2>) is asserted to a logic 0, which defines the external clock source as asynchronous C1 When all three conditions are true, the timer will continue to count up to the period register and be reset to 0x0000. C2 When a match between the timer and the period register occurs, an interrupt can be generated, if the respective timer interrupt enable bit is asserted. DS70082G-page 74 Preliminary SOSCI 32.768 kHz XTAL dsPIC30FXXXX SOSCO R C1 = C2 = 18 pF; R = 100K 2004 Microchip Technology Inc. dsPIC30F 9.5.1 RTC OSCILLATOR OPERATION 9.5.2 When the TON = 1, TCS = 1 and TGATE = 0, the timer increments on the rising edge of the 32 kHz LP oscillator output signal, up to the value specified in the period register, and is then reset to `0'. The TSYNC bit must be asserted to a logic `0' (Asynchronous mode) for correct operation. Enabling LPOSCEN (OSCCON<1>) will disable the normal Timer and Counter modes and enable a timer carry-out wake-up event. When the CPU enters Sleep mode, the RTC will continue to operate, provided the 32 kHz external crystal oscillator is active and the control bits have not been changed. The TSIDL bit should be cleared to `0' in order for RTC to continue operation in Idle mode. 2004 Microchip Technology Inc. RTC INTERRUPTS When an interrupt event occurs, the respective interrupt flag, T1IF, is asserted and an interrupt will be generated, if enabled. The T1IF bit must be cleared in software. The respective Timer interrupt flag, T1IF, is located in the IFS0 status register in the Interrupt Controller. Enabling an interrupt is accomplished via the respective timer interrupt enable bit, T1IE. The Timer interrupt enable bit is located in the IEC0 control register in the Interrupt Controller. Preliminary DS70082G-page 75 0102 PR1 Bit 15 DS70082G-page 76 TSIDL Bit 13 -- Bit 12 -- Bit 11 -- Bit 10 -- Bit 9 -- Bit 7 Bit 6 -- TGATE Period Register 1 Timer 1 Register Bit 8 Bit 4 TCKPS1 TCKPS0 Bit 5 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. -- Bit 14 TIMER1 REGISTER MAP 0104 TON u = uninitialized bit 0100 TMR1 T1CON Legend: Addr. SFR Name TABLE 9-1: -- Bit 3 TSYNC Bit 2 TCS Bit 1 -- Bit 0 Reset State 0000 0000 0000 0000 1111 1111 1111 1111 uuuu uuuu uuuu uuuu dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 10.0 TIMER2/3 MODULE Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). This section describes the 32-bit General Purpose (GP) Timer module (Timer2/3) and associated operational modes. Figure 10-1 depicts the simplified block diagram of the 32-bit Timer2/3 module. Figure 10-2 and Figure 10-3 show Timer2/3 configured as two independent 16-bit timers; Timer2 and Timer3, respectively. 16-bit Mode: In the 16-bit mode, Timer2 and Timer3 can be configured as two independent 16-bit timers. Each timer can be set up in either 16-bit Timer mode or 16-bit Synchronous Counter mode. See Section 9.0, Timer1 Module, for details on these two operating modes. The only functional difference between Timer2 and Timer3 is that Timer2 provides synchronization of the clock prescaler output. This is useful for high frequency external clock inputs. 32-bit Timer Mode: In the 32-bit Timer mode, the timer increments on every instruction cycle up to a match value, preloaded into the combined 32-bit period register PR3/PR2, then resets to 0 and continues to count. The Timer2/3 module is a 32-bit timer, which can be configured as two 16-bit timers, with selectable operating modes. These timers are utilized by other peripheral modules such as: For synchronous 32-bit reads of the Timer2/Timer3 pair, reading the LS word (TMR2 register) will cause the MS word to be read and latched into a 16-bit holding register, termed TMR3HLD. * Input Capture * Output Compare/Simple PWM For synchronous 32-bit writes, the holding register (TMR3HLD) must first be written to. When followed by a write to the TMR2 register, the contents of TMR3HLD will be transferred and latched into the MSB of the 32-bit timer (TMR3). The following sections provide a detailed description, including setup and control registers, along with associated block diagrams for the operational modes of the timers. The 32-bit timer has the following modes: * Two independent 16-bit timers (Timer2 and Timer3) with all 16-bit operating modes (except Asynchronous Counter mode) * Single 32-bit Timer operation * Single 32-bit Synchronous Counter Further, the following operational characteristics are supported: * * * * * ADC Event Trigger Timer Gate Operation Selectable Prescaler Settings Timer Operation during Idle and Sleep modes Interrupt on a 32-bit Period Register Match 32-bit Synchronous Counter Mode: In the 32-bit Synchronous Counter mode, the timer increments on the rising edge of the applied external clock signal, which is synchronized with the internal phase clocks. The timer counts up to a match value preloaded in the combined 32-bit period register PR3/PR2, then resets to `0' and continues. When the timer is configured for the Synchronous Counter mode of operation and the CPU goes into the Idle mode, the timer will stop incrementing, unless the TSIDL (T2CON<13>) bit = 0. If TSIDL = 1, the timer module logic will resume the incrementing sequence upon termination of the CPU Idle mode. Note: These operating modes are determined by setting the appropriate bit(s) in the 16-bit T2CON and T3CON SFRs. For 32-bit timer/counter operation, Timer2 is the LS Word and Timer3 is the MS Word of the 32-bit timer. Note: In some devices, one or more of the TxCK pins may be absent. For these timers without the external clock input pin, the following modes should not be used: 1. TCS = 1 (16-bit counter) 2. TCS = 0, TGATE = 1 (gated time accumulation. For 32-bit timer operation, T3CON control bits are ignored. Only T2CON control bits are used for setup and control. Timer 2 clock and gate inputs are utilized for the 32-bit timer module, but an interrupt is generated with the Timer3 interrupt flag (T3IF) and the interrupt is enabled with the Timer3 interrupt enable bit (T3IE). 2004 Microchip Technology Inc. Preliminary DS70082G-page 77 dsPIC30F FIGURE 10-1: 32-BIT TIMER2/3 BLOCK DIAGRAM Data Bus<15:0> TMR3HLD 16 16 Write TMR2 Read TMR2 16 Reset TMR3 TMR2 MSB LSB Sync ADC Event Trigger Equal Comparator x 32 PR3 PR2 0 T3IF Event Flag 1 D Q CK TGATE(T2CON<6>) TCS TGATE TGATE (T2CON<6>) Q TON T2CK Note: TCKPS<1:0> 2 1X Gate Sync 01 TCY 00 Prescaler 1, 8, 64, 256 Timer configuration bit T32, T2CON(<3>) must be set to 1 for a 32-bit timer/counter operation. All control bits are respective to the T2CON register. DS70082G-page 78 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 10-2: 16-BIT TIMER2 BLOCK DIAGRAM PR2 Equal Reset TMR2 Sync 0 1 Q D Q CK TGATE TCS TGATE T2IF Event Flag Comparator x 16 TGATE TON T2CK FIGURE 10-3: TCKPS<1:0> 2 1X Gate Sync 01 TCY 00 Prescaler 1, 8, 64, 256 16-BIT TIMER3 BLOCK DIAGRAM PR3 ADC Event Trigger Equal Reset TMR3 0 1 Q D Q CK TGATE TCS TGATE T3IF Event Flag Comparator x 16 TGATE T3CK Sync TON 1X 01 TCY 2004 Microchip Technology Inc. Preliminary TCKPS<1:0> 2 Prescaler 1, 8, 64, 256 00 DS70082G-page 79 dsPIC30F 10.1 Timer Gate Operation 10.4 The 32-bit timer can be placed in the Gated Time Accumulation mode. This mode allows the internal TCY to increment the respective timer when the gate input signal (T2CK pin) is asserted high. Control bit TGATE (T2CON<6>) must be set to enable this mode. When in this mode, Timer2 is the originating clock source. The TGATE setting is ignored for Timer3. The timer must be enabled (TON = 1) and the timer clock source set to internal (TCS = 0). The falling edge of the external signal terminates the count operation, but does not reset the timer. The user must reset the timer in order to start counting from zero. 10.2 ADC Event Trigger When a match occurs between the 32-bit timer (TMR3/ TMR2) and the 32-bit combined period register (PR3/ PR2) or between the 16-bit timer (TMR3) and the 16-bit period register (PR3), a special ADC trigger event signal is generated by Timer3. 10.3 Timer Operation During Sleep Mode During CPU Sleep mode, the timer will not operate, because the internal clocks are disabled. 10.5 Timer Interrupt The 32-bit timer module can generate an interrupt on period match, or on the falling edge of the external gate signal. When the 32-bit timer count matches the respective 32-bit period register, or the falling edge of the external "gate" signal is detected, the T3IF bit (IFS0<7>) is asserted and an interrupt will be generated if enabled. In this mode, the T3IF interrupt flag is used as the source of the interrupt. The T3IF bit must be cleared in software. Enabling an interrupt is accomplished via the respective timer interrupt enable bit, T3IE (IEC0<7>).. Note: Timer Prescaler The input clock (FOSC/4 or external clock) to the timer has a prescale option of 1:1, 1:8, 1:64, and 1:256 selected by control bits TCKPS<1:0> (T2CON<5:4> and T3CON<5:4>). For the 32-bit timer operation, the originating clock source is Timer2. The prescaler operation for Timer3 is not applicable in this mode. The prescaler counter is cleared when any of the following occurs: In some devices, one or more of the TxCK pins may be absent. For these timers without the external clock input pin, the following modes should not be used: 1. TCS = 1 (16-bit counter) 2. TCS = 0, TGATE = 1 (gated time accumulation. * a write to the TMR2/TMR3 register * clearing either of the TON (T2CON<15> or T3CON<15>) bits to `0' * device Reset such as POR and BOR However, if the timer is disabled (TON = 0), then the Timer 2 prescaler cannot be reset, since the prescaler clock is halted. TMR2/TMR3 is not cleared when T2CON/T3CON is written. DS70082G-page 80 Preliminary 2004 Microchip Technology Inc. 010A 010C 010E 0110 TMR3 PR2 PR3 T2CON TON 2004 Microchip Technology Inc. TSIDL TSIDL -- -- -- -- Bit 12 -- -- Bit 11 Bit 9 Bit 7 Timer2 Register Bit 8 Bit 6 Bit 5 -- -- -- -- -- -- -- -- TGATE TGATE Period Register 3 Period Register 2 Timer3 Register Bit 4 TCKPS1 TCKPS0 TCKPS1 TCKPS0 Timer3 Holding Register (For 32-bit timer operations only) Bit 10 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. 0112 TON u = uninitialized bit 0108 T3CON Legend: 0106 TMR2 TMR3HLD Bit 13 Bit 15 SFR Name Addr. Bit 14 TIMER2/3 REGISTER MAP TABLE 10-1: -- T32 Bit 3 -- -- Bit 2 TCS TCS Bit 1 -- -- Bit 0 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu dsPIC30F Preliminary DS70082G-page 81 dsPIC30F NOTES: DS70082G-page 82 Preliminary 2004 Microchip Technology Inc. dsPIC30F 11.0 TIMER4/5 MODULE The Timer4/5 module is similar in operation to the Timer 2/3 module. However, there are some differences, which are listed below: Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). * The Timer4/5 module does not support the ADC Event Trigger feature * Timer4/5 can not be utilized by other peripheral modules such as Input Capture and Output Compare This section describes the second 32-bit General Purpose (GP) Timer module (Timer4/5) and associated operational modes. Figure 11-1 depicts the simplified block diagram of the 32-bit Timer4/5 Module. Figure 11-2 and Figure 11-3 show Timer4/5 configured as two independent 16-bit timers, Timer4 and Timer5, respectively. The operating modes of the Timer4/5 module are determined by setting the appropriate bit(s) in the 16-bit T4CON and T5CON SFRs. For 32-bit timer/counter operation, Timer4 is the LS Word and Timer5 is the MS Word of the 32-bit timer. Note: FIGURE 11-1: For 32-bit timer operation, T5CON control bits are ignored. Only T4CON control bits are used for setup and control. Timer4 clock and gate inputs are utilized for the 32-bit timer module, but an interrupt is generated with the Timer5 interrupt flag (T5IF) and the interrupt is enabled with the Timer5 interrupt enable bit (T5IE). 32-BIT TIMER4/5 BLOCK DIAGRAM Data Bus<15:0> TMR5HLD 16 16 Write TMR4 Read TMR4 16 Reset Equal TMR5 TMR4 MSB LSB Comparator x 32 PR5 T5IF Event Flag Sync PR4 0 1 D CK TGATE(T4CON<6>) TCS TGATE TGATE (T4CON<6>) Q Q TON T4CK Note: TCKPS<1:0> 2 1X Gate Sync 01 TCY 00 Prescaler 1, 8, 64, 256 Timer configuration bit T32, T4CON(<3>) must be set to `1' for a 32-bit timer/counter operation. All control bits are respective to the T4CON register. 2004 Microchip Technology Inc. Preliminary DS70082G-page 83 dsPIC30F FIGURE 11-2: 16-BIT TIMER4 BLOCK DIAGRAM PR4 Equal Comparator x 16 TMR4 Reset Sync 0 1 Q D Q CK TGATE TCS TGATE TGATE T4IF Event Flag TCKPS<1:0> 2 TON T4CK 1X FIGURE 11-3: Gate Sync 01 TCY 00 Prescaler 1, 8, 64, 256 16-BIT TIMER5 BLOCK DIAGRAM PR5 Equal ADC Event Trigger Comparator x 16 TMR5 Reset 0 1 Q D Q CK TGATE TCS TGATE TGATE T5IF Event Flag TCKPS<1:0> TON T5CK Sync 01 TCY DS70082G-page 84 Preliminary 2 1X Prescaler 1, 8, 64, 256 00 2004 Microchip Technology Inc. TON Bit 15 2004 Microchip Technology Inc. TSIDL -- -- -- Bit 12 -- -- Bit 11 Bit 9 Bit 7 Bit 6 Timer 4 Register Bit 8 Bit 5 -- -- -- -- -- -- -- -- TGATE TGATE Period Register 5 Period Register 4 Timer 5 Register TCKPS1 TCKPS1 Timer 5 Holding Register (For 32-bit operations only) Bit 10 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. TSIDL Bit 13 -- Bit 14 TIMER4/5 REGISTER MAP 0120 TON u = uninitialized bit 011E T4CON T5CON Legend: 011A 011C 0118 TMR5 PR4 0116 PR5 0114 TMR4 Addr. TMR5HLD SFR Name TABLE 11-1: TCKPS0 TCKPS0 Bit 4 -- T45 Bit 3 -- -- Bit 2 TCS TCS Bit 1 -- -- Bit 0 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 1111 1111 1111 1111 1111 1111 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu dsPIC30F Preliminary DS70082G-page 85 dsPIC30F NOTES: DS70082G-page 86 Preliminary 2004 Microchip Technology Inc. dsPIC30F 12.0 INPUT CAPTURE MODULE The key operational features of the Input Capture module are: Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). * Simple Capture Event mode * Timer2 and Timer3 mode selection * Interrupt on input capture event These operating modes are determined by setting the appropriate bits in the ICxCON register (where x = 1,2,...,N). The dsPIC devices contain up to 8 capture channels, (i.e., the maximum value of N is 8). This section describes the Input Capture module and associated operational modes. The features provided by this module are useful in applications requiring Frequency (Period) and Pulse measurement. Figure 12-1 depicts a block diagram of the Input Capture module. Input capture is useful for such modes as: * Frequency/Period/Pulse Measurements * Additional sources of External Interrupts FIGURE 12-1: INPUT CAPTURE MODE BLOCK DIAGRAM From GP Timer Module T3_CNT T2_CNT 16 ICx Pin 16 ICTMR 1 Prescaler 1, 4, 16 3 Edge Detection Logic Clock Synchronizer 0 FIFO R/W Logic ICM<2:0> Mode Select ICxBUF ICBNE, ICOV ICI<1:0> ICxCON Interrupt Logic Data Bus Note: Set Flag ICxIF Where `x' is shown, reference is made to the registers or bits associated to the respective input capture channels 1 through N. 2004 Microchip Technology Inc. Preliminary DS70082G-page 87 dsPIC30F 12.1 12.1.3 Simple Capture Event Mode The simple capture events in the dsPIC30F product family are: * * * * * Capture every falling edge Capture every rising edge Capture every 4th rising edge Capture every 16th rising edge Capture every rising and falling edge CAPTURE PRESCALER There are four input capture prescaler settings, specified by bits ICM<2:0> (ICxCON<2:0>). Whenever the capture channel is turned off, the prescaler counter will be cleared. In addition, any Reset will clear the prescaler counter. 12.1.2 The input capture module consists of up to 8 input capture channels. Each channel can select between one of two timers for the time base, Timer2 or Timer3. Selection of the timer resource is accomplished through SFR bit ICTMR (ICxCON<7>). Timer3 is the default timer resource available for the input capture module. These simple Input Capture modes are configured by setting the appropriate bits ICM<2:0> (ICxCON<2:0>). 12.1.1 TIMER2 AND TIMER3 SELECTION MODE CAPTURE BUFFER OPERATION Each capture channel has an associated FIFO buffer, which is four 16-bit words deep. There are two status flags, which provide status on the FIFO buffer: 12.1.4 HALL SENSOR MODE When the input capture module is set for capture on every edge, rising and falling, ICM<2:0> = 001, the following operations are performed by the input capture logic: * The input capture interrupt flag is set on every edge, rising and falling. * The interrupt on Capture mode setting bits, ICI<1:0>, is ignored, since every capture generates an interrupt. * A capture overflow condition is not generated in this mode. * ICBFNE - Input Capture Buffer Not Empty * ICOV - Input Capture Overflow The ICBFNE will be set on the first input capture event and remain set until all capture events have been read from the FIFO. As each word is read from the FIFO, the remaining words are advanced by one position within the buffer. In the event that the FIFO is full with four capture events and a fifth capture event occurs prior to a read of the FIFO, an overflow condition will occur and the ICOV bit will be set to a logic `1'. The fifth capture event is lost and is not stored in the FIFO. No additional events will be captured till all four events have been read from the buffer. If a FIFO read is performed after the last read and no new capture event has been received, the read will yield indeterminate results. DS70082G-page 88 Preliminary 2004 Microchip Technology Inc. dsPIC30F 12.2 12.2.2 Input Capture Operation During Sleep and Idle Modes An input capture event will generate a device wake-up or interrupt, if enabled, if the device is in CPU Idle or Sleep mode. Independent of the timer being enabled, the input capture module will wake-up from the CPU Sleep or Idle mode when a capture event occurs, if ICM<2:0> = 111 and the interrupt enable bit is asserted. The same wake-up can generate an interrupt, if the conditions for processing the interrupt have been satisfied. The wake-up feature is useful as a method of adding extra external pin interrupts. 12.2.1 INPUT CAPTURE IN CPU SLEEP MODE CPU Sleep mode allows input capture module operation with reduced functionality. In the CPU Sleep mode, the ICI<1:0> bits are not applicable, and the input capture module can only function as an external interrupt source. The capture module must be configured for interrupt only on the rising edge (ICM<2:0> = 111), in order for the input capture module to be used while the device is in Sleep mode. The prescale settings of 4:1 or 16:1 are not applicable in this mode. 2004 Microchip Technology Inc. INPUT CAPTURE IN CPU IDLE MODE CPU Idle mode allows input capture module operation with full functionality. In the CPU Idle mode, the interrupt mode selected by the ICI<1:0> bits are applicable, as well as the 4:1 and 16:1 capture prescale settings, which are defined by control bits ICM<2:0>. This mode requires the selected timer to be enabled. Moreover, the ICSIDL bit must be asserted to a logic `0'. If the input capture module is defined as ICM<2:0> = 111 in CPU Idle mode, the input capture pin will serve only as an external interrupt pin. 12.3 Input Capture Interrupts The input capture channels have the ability to generate an interrupt, based upon the selected number of capture events. The selection number is set by control bits ICI<1:0> (ICxCON<6:5>). Each channel provides an interrupt flag (ICxIF) bit. The respective capture channel interrupt flag is located in the corresponding IFSx Status register. Enabling an interrupt is accomplished via the respective capture channel interrupt enable (ICxIE) bit. The capture interrupt enable bit is located in the corresponding IEC Control register. Preliminary DS70082G-page 89 DS70082G-page 90 0154 IC6BUF u = uninitialized bit -- -- -- -- -- -- -- -- Bit 15 -- -- -- -- -- -- -- -- Bit 14 ICSIDL ICSIDL ICSIDL ICSIDL ICSIDL ICSIDL ICSIDL ICSIDL Bit 13 -- -- -- -- -- -- -- -- Bit 12 -- -- -- -- -- -- -- -- Bit 11 INPUT CAPTURE REGISTER MAP -- -- -- -- -- -- -- -- Bit 10 Bit 8 Bit 7 -- ICTMR -- ICTMR -- ICTMR -- ICTMR -- ICTMR -- ICTMR -- ICTMR -- -- ICTMR Input 8 Capture Register -- Input 7 Capture Register -- Input 6 Capture Register -- Input 5 Capture Register -- Input 4 Capture Register -- Input 3 Capture Register -- Input 2 Capture Register -- Input 1 Capture Register Bit 9 Bit 5 ICI<1:0> ICI<1:0> ICI<1:0> ICI<1:0> ICI<1:0> ICI<1:0> ICI<1:0> ICI<1:0> Bit 6 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. Legend: 015E 0152 IC5CON IC8CON 0150 IC5BUF 015C 014E IC4CON IC8BUF 014C IC4BUF 015A 014A IC3CON IC7CON 0148 IC3BUF 0156 0146 IC2CON 0158 0144 IC2BUF IC7BUF 0142 IC1CON IC6CON 0140 IC1BUF SFR Name Addr. TABLE 12-1: ICOV ICOV ICOV ICOV ICOV ICOV ICOV ICOV Bit 4 ICBNE ICBNE ICBNE ICBNE ICBNE ICBNE ICBNE ICBNE Bit 3 Bit 2 ICM<2:0> ICM<2:0> ICM<2:0> ICM<2:0> ICM<2:0> ICM<2:0> ICM<2:0> ICM<2:0> Bit 1 Bit 0 Reset State 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 13.0 OUTPUT COMPARE MODULE The key operational features of the Output Compare module include: Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). This section describes the Output Compare module and associated operational modes. The features provided by this module are useful in applications requiring operational modes such as: * Generation of Variable Width Output Pulses * Power Factor Correction Figure 13-1 depicts a block diagram of the Output Compare module. FIGURE 13-1: * * * * * * Timer2 and Timer3 Selection mode Simple Output Compare Match mode Dual Output Compare Match mode Simple PWM mode Output Compare during Sleep and Idle modes Interrupt on Output Compare/PWM Event These operating modes are determined by setting the appropriate bits in the 16-bit OCxCON SFR (where x = 1,2,3,...,N). The dsPIC devices contain up to 8 compare channels, (i.e., the maximum value of N is 8). OCxRS and OCxR in the figure represent the Dual Compare registers. In the dual compare mode, the OCxR register is used for the first compare and OCxRS is used for the second compare. OUTPUT COMPARE MODE BLOCK DIAGRAM Set Flag bit OCxIF OCxRS Output Logic OCxR 3 OCM<2:0> Mode Select Comparator S Q R OCx Output Enable OCFA (for x = 1, 2, 3 or 4) 0 1 OCTSEL 1 0 or OCFB (for x = 5, 6, 7 or 8) From GP Timer Module TMR2<15:0 Note: TMR3<15:0> T2P2_MATCH T3P3_MATCH Where `x' is shown, reference is made to the registers associated with the respective output compare channels 1 through N. 2004 Microchip Technology Inc. Preliminary DS70082G-page 91 dsPIC30F 13.1 Timer2 and Timer3 Selection Mode Each output compare channel can select between one of two 16-bit timers; Timer2 or Timer3. The selection of the timers is controlled by the OCTSEL bit (OCxCON<3>). Timer2 is the default timer resource for the Output Compare module. 13.2 Simple Output Compare Match Mode When control bits OCM<2:0> (OCxCON<2:0>) = 001, 010 or 011, the selected output compare channel is configured for one of three simple Output Compare Match modes: * Compare forces I/O pin low * Compare forces I/O pin high * Compare toggles I/O pin Dual Output Compare Match Mode When control bits OCM<2:0> (OCxCON<2:0>) = 100 or 101, the selected output compare channel is configured for one of two Dual Output Compare modes, which are: * Single Output Pulse mode * Continuous Output Pulse mode 13.3.1 * Determine instruction cycle time TCY. * Calculate desired pulse width value based on TCY. * Calculate time to start pulse from timer start value of 0x0000. * Write pulse width start and stop times into OCxR and OCxRS compare registers (x denotes channel 1, 2, ...,N). * Set timer period register to value equal to, or greater than, value in OCxRS compare register. * Set OCM<2:0> = 100. * Enable timer, TON (TxCON<15>) = 1. To initiate another single pulse, issue another write to set OCM<2:0> = 100. Simple PWM Mode When control bits OCM<2:0> (OCxCON<2:0>) = 110 or 111, the selected output compare channel is configured for the PWM mode of operation. When configured for the PWM mode of operation, OCxR is the Main latch (read only) and OCxRS is the Secondary latch. This enables glitchless PWM transitions. The user must perform the following steps in order to configure the output compare module for PWM operation: 1. 2. 4. For the user to configure the module for the generation of a single output pulse, the following steps are required (assuming timer is off): DS70082G-page 92 * Determine instruction cycle time TCY. * Calculate desired pulse value based on TCY. * Calculate timer to start pulse width from timer start value of 0x0000. * Write pulse width start and stop times into OCxR and OCxRS (x denotes channel 1, 2, ...,N) compare registers, respectively. * Set timer period register to value equal to, or greater than, value in OCxRS compare register. * Set OCM<2:0> = 101. * Enable timer, TON (TxCON<15>) = 1. 3. SINGLE PULSE MODE CONTINUOUS PULSE MODE For the user to configure the module for the generation of a continuous stream of output pulses, the following steps are required: 13.4 The OCxR register is used in these modes. The OCxR register is loaded with a value and is compared to the selected incrementing timer count. When a compare occurs, one of these Compare Match modes occurs. If the counter resets to zero before reaching the value in OCxR, the state of the OCx pin remains unchanged. 13.3 13.3.2 Set the PWM period by writing to the appropriate period register. Set the PWM duty cycle by writing to the OCxRS register. Configure the output compare module for PWM operation. Set the TMRx prescale value and enable the Timer, TON (TxCON<15>) = 1. 13.4.1 INPUT PIN FAULT PROTECTION FOR PWM When control bits OCM<2:0> (OCxCON<2:0>) = 111, the selected output compare channel is again configured for the PWM mode of operation, with the additional feature of input fault protection. While in this mode, if a logic 0 is detected on the OCFA/B pin, the respective PWM output pin is placed in the high impedance input state. The OCFLT bit (OCxCON<4>) indicates whether a FAULT condition has occurred. This state will be maintained until both of the following events have occurred: * The external FAULT condition has been removed. * The PWM mode has been re-enabled by writing to the appropriate control bits. Preliminary 2004 Microchip Technology Inc. dsPIC30F 13.4.2 PWM PERIOD The PWM period is specified by writing to the PRx register. The PWM period can be calculated using Equation 13-1. EQUATION 13-1: PWM PERIOD PWM period = [(PRx) + 1] * 4 * TOSC * (TMRx prescale value) PWM frequency is defined as 1 / [PWM period]. When the selected TMRx is equal to its respective period register, PRx, the following four events occur on the next increment cycle: * TMRx is cleared. * The OCx pin is set. - Exception 1: If PWM duty cycle is 0x0000, the OCx pin will remain low. - Exception 2: If duty cycle is greater than PRx, the pin will remain high. * The PWM duty cycle is latched from OCxRS into OCxR. * The corresponding timer interrupt flag is set. See Figure 13-1 for key PWM period comparisons. Timer3 is referred to in the figure for clarity. FIGURE 13-1: PWM OUTPUT TIMING Period Duty Cycle TMR3 = PR3 T3IF = 1 (Interrupt Flag) OCxR = OCxRS 13.5 TMR3 = PR3 T3IF = 1 (Interrupt Flag) OCxR = OCxRS TMR3 = Duty Cycle (OCxR) TMR3 = Duty Cycle (OCxR) Output Compare Operation During CPU Sleep Mode When the CPU enters the Sleep mode, all internal clocks are stopped. Therefore, when the CPU enters the Sleep state, the output compare channel will drive the pin to the active state that was observed prior to entering the CPU Sleep state. For example, if the pin was high when the CPU entered the Sleep state, the pin will remain high. Likewise, if the pin was low when the CPU entered the Sleep state, the pin will remain low. In either case, the output compare module will resume operation when the device wakes up. 13.6 Output Compare Operation During CPU Idle Mode When the CPU enters the Idle mode, the output compare module can operate with full functionality. The output compare channel will operate during the CPU Idle mode if the OCSIDL bit (OCxCON<13>) is at logic 0 and the selected time base (Timer2 or Timer3) is enabled and the TSIDL bit of the selected timer is set to logic 0. 2004 Microchip Technology Inc. 13.7 Output Compare Interrupts The output compare channels have the ability to generate an interrupt on a compare match, for whichever Match mode has been selected. For all modes except the PWM mode, when a compare event occurs, the respective interrupt flag (OCxIF) is asserted and an interrupt will be generated, if enabled. The OCxIF bit is located in the corresponding IFS Status register, and must be cleared in software. The interrupt is enabled via the respective compare interrupt enable (OCxIE) bit, located in the corresponding IEC Control register. For the PWM mode, when an event occurs, the respective timer interrupt flag (T2IF or T3IF) is asserted and an interrupt will be generated, if enabled. The IF bit is located in the IFS0 Status register, and must be cleared in software. The interrupt is enabled via the respective timer interrupt enable bit (T2IE or T3IE), located in the IEC0 Control register. The output compare interrupt flag is never set during the PWM mode of operation. Preliminary DS70082G-page 93 DS70082G-page 94 Preliminary OC8R -- -- -- -- -- -- -- -- -- -- -- -- -- -- OCSIDL OCSIDL OCSIDL OCSIDL OCSIDL OCSIDL OCSIDL OCSIDL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 8 Bit 7 Bit 6 -- -- -- Output Compare 1 Main Register -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Output Compare 8 Main Register Output Compare 8 Secondary Register -- Output Compare 7 Main Register Output Compare 7 Secondary Register -- Output Compare 6 Main Register Output Compare 6 Secondary Register -- Output Compare 5 Main Register Output Compare 5 Secondary Register -- Output Compare 4 Main Register Output Compare 4 Secondary Register -- Output Compare 3 Main Register Output Compare 3 Secondary Register -- Output Compare 2 Main Register Output Compare 2 Secondary Register -- -- -- -- -- -- -- -- -- Bit 5 Output Compare 1 Secondary Register Bit 9 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. -- OC8CON 01AE Legend: u = uninitialized bit 01AA 01AC OC8RS 019C OC5CON 01A8 019A OC5R OC7CON 0198 OC5RS 01A6 0196 OC4CON OC7R 0194 OC4R 01A4 0192 OC4RS OC7RS 0190 OC3CON 01A2 018E OC3R OC6CON 018C OC3RS 01A0 018A OC2CON OC6R 0188 OC2R 019E 0186 OC2RS OC6RS 0184 OC1CON -- 0182 Bit 10 0180 Bit 11 OC1R Bit 12 OC1RS Bit 13 Bit 15 Addr. SFR Name Bit 14 OUTPUT COMPARE REGISTER MAP TABLE 13-1: OCFLT OCFLT OCFLT OCFLT OCFLT OCFLT OCFLT OCFLT Bit 4 OCTSEL OCTSEL OCTSEL OCTSEL OCTSEL OCTSEL OCTSE OCTSEL Bit 3 Bit 2 OCM<2:0> OCM<2:0> OCM<2:0> OCM<2:0> OCM<2:0> OCM<2:0> OCM<2:0> OCM<2:0> Bit 1 Bit 0 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 dsPIC30F 2004 Microchip Technology Inc. dsPIC30F 14.0 QUADRATURE ENCODER INTERFACE (QEI) MODULE The Quadrature Encoder Interface (QEI) is a key feature requirement for several motor control applications, such as Switched Reluctance (SR) and AC Induction Motor (ACIM). The operational features of the QEI are, but not limited to: Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). * Three input channels for two phase signals and index pulse * 16-bit up/down position counter * Count direction status * Position Measurement (x2 and x4) mode * Programmable digital noise filters on inputs * Alternate 16-bit Timer/Counter mode * Quadrature Encoder Interface interrupts This section describes the Quadrature Encoder Interface (QEI) module and associated operational modes. The QEI module provides the interface to incremental encoders for obtaining motor positioning data. Incremental encoders are very useful in motor control applications. These operating modes are determined by setting the appropriate bits QEIM<2:0> (QEICON<10:8>). Figure 14-1 depicts the Quadrature Encoder Interface block diagram. FIGURE 14-1: QUADRATURE ENCODER INTERFACE BLOCK DIAGRAM TQCKPS<1:0> Sleep Input TQCS TCY 2 0 Synchronize Det Prescaler 1, 8, 64, 256 1 1 QEIM<2:0> 0 TQGATE QEA Programmable Digital Filter UPDN_SRC 0 2 QEB Programmable Digital Filter INDX Programmable Digital Filter CK Q QEIIF Event Flag Reset Comparator/ Zero Detect 3 QEIM<2:0> Mode Select 1 Q 16-bit Up/Down Counter (POSCNT) Quadrature Encoder Interface Logic QEICON<11> D Equal Max Count Register (MAXCNT) PCDOUT Existing Pin Logic 0 UPDN 1 2004 Microchip Technology Inc. Up/Down Preliminary DS70082G-page 95 dsPIC30F 14.1 Quadrature Encoder Interface Logic reset when the index pulse is detected. The position counter will continue counting up or down, and will be reset on the rollover or underflow condition. A typical incremental (a.k.a. optical) encoder has three outputs: Phase A, Phase B, and an index pulse. These signals are useful and often required in position and speed control of ACIM and SR motors. The two channels, Phase A (QEA) and Phase B (QEB), have a unique relationship. If Phase A leads Phase B, then the direction (of the motor) is deemed positive or forward. If Phase A lags Phase B, then the direction (of the motor) is deemed negative or reverse. A third channel, termed index pulse, occurs once per revolution and is used as a reference to establish an absolute position. The index pulse coincides with Phase A and Phase B, both low. 14.2 16-bit Up/Down Position Counter Mode The 16-bit Up/Down Counter counts up or down on every count pulse, which is generated by the difference of the Phase A and Phase B input signals. The counter acts as an integrator, whose count value is proportional to position. The direction of the count is determined by the UPDN signal, which is generated by the Quadrature Encoder Interface Logic. 14.2.1 POSITION COUNTER ERROR CHECKING Position count error checking in the QEI is provided for and indicated by the CNTERR bit (QEICON<15>). The error checking only applies when the position counter is configured for Reset on the Index Pulse modes (QEIM<2:0> = `110' or `100'). In these modes, the contents of the POSCNT register is compared with the values (0xFFFF or MAXCNT+1, depending on direction). If these values are detected, an error condition is generated by setting the CNTERR bit and a QEI count error interrupt is generated. The QEI count error interrupt can be disabled by setting the CEID bit (DFLTCON<8>). The position counter continues to count encoder edges after an error has been detected. The POSCNT register continues to count up/down until a natural rollover/underflow. No interrupt is generated for the natural rollover/underflow event. The CNTERR bit is a read/write bit and reset in software by the user. 14.2.2 POSITION COUNTER RESET 14.2.3 If the POSRES bit is set to `1', then the position counter is reset when the index pulse is detected. If the POSRES bit is set to `0', then the position counter is not COUNT DIRECTION STATUS As mentioned in the previous section, the QEI logic generates an UPDN signal, based upon the relationship between Phase A and Phase B. In addition to the output pin, the state of this internal UPDN signal is supplied to a SFR bit UPDN (QEICON<11>) as a read only bit. To place the state of this signal on an I/O pin, the SFR bit PCDOUT (QEICON<6>) must be 1. The IMV<1:0> control bits (DFLTCON<10:9>) determine the state of the QEA and QEB signals for which the reset of the position counter will take place. 14.3 Position Measurement Mode There are two Measurement modes which are supported and are termed x2 and x4. These modes are selected by the QEIM<2:0> mode select bits located in SFR QEICON<10:8>. When control bits QEIM<2:0> = 100 or 101, the x2 Measurement mode is selected and the QEI logic only looks at the Phase A input for the position counter increment rate. Every rising and falling edge of the Phase A signal causes the position counter to be incremented or decremented. The Phase B signal is still utilized for the determination of the counter direction, just as in the x4 mode. Within the x2 Measurement mode, there are two variations of how the position counter is reset: 1. 2. Position counter reset by detection of index pulse, QEIM<2:0> = 100. Position counter reset by match with MAXCNT, QEIM<2:0> = 101. When control bits QEIM<2:0> = 110 or 111, the x4 Measurement mode is selected and the QEI logic looks at both edges of the Phase A and Phase B input signals. Every edge of both signals causes the position counter to increment or decrement. Within the x4 Measurement mode, there are two variations of how the position counter is reset: 1. The position counter Reset enable bit, POSRES (QEI<2>) controls whether the position counter is reset when the index pulse is detected. This bit is only applicable when QEIM<2:0> = `100' or `110'. DS70082G-page 96 The interrupt is still generated on the detection of the index pulse and not on the position counter overflow/ underflow. 2. Position counter reset by detection of index pulse, QEIM<2:0> = 110. Position counter reset by match with MAXCNT, QEIM<2:0> = 111. The x4 Measurement mode provides for finer resolution data (more position counts) for determining motor position. Preliminary 2004 Microchip Technology Inc. dsPIC30F 14.4 Programmable Digital Noise Filters The digital noise filter section is responsible for rejecting noise on the incoming capture or quadrature signals. Schmitt Trigger inputs and a three-clock cycle delay filter combine to reject low level noise and large, short duration noise spikes that typically occur in noise prone applications, such as a motor system. In addition, control bit UPDN_SRC (QEICON<0>) determines whether the timer count direction state is based on the logic state, written into the UPDN control/ status bit (QEICON<11>), or the QEB pin state. When UPDN_SRC = 1, the timer count direction is controlled from the QEB pin. Likewise, when UPDN_SRC = 0, the timer count direction is controlled by the UPDN bit. Note: The filter ensures that the filtered output signal is not permitted to change until a stable value has been registered for three consecutive clock cycles. For the QEA, QEB and INDX pins, the clock divide frequency for the digital filter is programmed by bits QECK<2:0> (DFLTCON<6:4>) and are derived from the base instruction cycle TCY. To enable the filter output for channels QEA, QEB and INDX, the QEOUT bit must be `1'. The filter network for all channels is disabled on POR and BOR. 14.5 Alternate 16-bit Timer/Counter When the QEI module is not configured for the QEI mode QEIM<2:0> = 001, the module can be configured as a simple 16-bit timer/counter. The setup and control of the auxiliary timer is accomplished through the QEICON SFR register. This timer functions identically to Timer1. The QEA pin is used as the timer clock input. When configured as a timer, the POSCNT register serves as the Timer Count Register and the MAXCNT register serves as the Period Register. When a timer/ period register match occur, the QEI interrupt flag will be asserted. The only exception between the general purpose timers and this timer is the added feature of external Up/ Down input select. When the UPDN pin is asserted high, the timer will increment up. When the UPDN pin is asserted low, the timer will be decremented. Note: Changing the operational mode (i.e., from QEI to Timer or vice versa), will not affect the Timer/Position Count Register contents. 14.6 14.6.1 This Timer does not support the External Asynchronous Counter mode of operation. If using an external clock source, the clock will automatically be synchronized to the internal instruction cycle. QEI Module Operation During CPU Sleep Mode QEI OPERATION DURING CPU SLEEP MODE The QEI module will be halted during the CPU Sleep mode. 14.6.2 TIMER OPERATION DURING CPU SLEEP MODE During CPU Sleep mode, the timer will not operate, because the internal clocks are disabled. 14.7 QEI Module Operation During CPU Idle Mode Since the QEI module can function as a quadrature encoder interface, or as a 16-bit timer, the following section describes operation of the module in both modes. 14.7.1 QEI OPERATION DURING CPU IDLE MODE When the CPU is placed in the Idle mode, the QEI module will operate if the QEISIDL bit (QEICON<13>) = 0. This bit defaults to a logic `0' upon executing POR and BOR. For halting the QEI module during the CPU Idle mode, QEISIDL should be set to `1'. The UPDN control/status bit (QEICON<11>) can be used to select the count direction state of the Timer register. When UPDN = 1, the timer will count up. When UPDN = 0, the timer will count down. 2004 Microchip Technology Inc. Preliminary DS70082G-page 97 dsPIC30F 14.7.2 TIMER OPERATION DURING CPU IDLE MODE When the CPU is placed in the Idle mode and the QEI module is configured in the 16-bit Timer mode, the 16-bit timer will operate if the QEISIDL bit (QEICON<13>) = 0. This bit defaults to a logic `0' upon executing POR and BOR. For halting the timer module during the CPU Idle mode, QEISIDL should be set to `1'. If the QEISIDL bit is cleared, the timer will function normally, as if the CPU Idle mode had not been entered. 14.8 Quadrature Encoder Interface Interrupts The quadrature encoder interface has the ability to generate an interrupt on occurrence of the following events: * Interrupt on 16-bit up/down position counter rollover/underflow * Detection of qualified index pulse, or if CNTERR bit is set * Timer period match event (overflow/underflow) * Gate accumulation event The QEI interrupt flag bit, QEIIF, is asserted upon occurrence of any of the above events. The QEIIF bit must be cleared in software. QEIIF is located in the IFS2 Status register. Enabling an interrupt is accomplished via the respective enable bit, QEIIE. The QEIIE bit is located in the IEC2 Control register. DS70082G-page 98 Preliminary 2004 Microchip Technology Inc. Bit 6 2004 Microchip Technology Inc. -- Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 -- -- IMV1 IMV0 CEID QEOUT QECK2 QECK1 QECK0 -- -- -- -- 1111 1111 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Reset State The control bits in the DFLTCON register may vary depending on the device that is selected. See the dsPIC30F Family Reference Manual (DS70046) and the specific device data sheet for further information.. -- Bit 5 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. Note: -- Maximun Count<15:0> Bit 7 MAXCNT 0128 Legend: u = uninitialized bit Bit 8 Position Counter<15:0> Bit 9 0126 Bit 10 INDX UPDN QEIM2 QEIM1 QEIM0 SWPAB PCDOUT TQGATE TQCKPS1 TQCKPS0 POSRES TQCS UPDN_SRC Bit 12 Bit 11 0124 QEISIDL Bit 13 DFLTCON -- Bit 14 POSCNT Bit 15 0122 CNTERR Addr. QEI REGISTER MAP QEICON SFR Name TABLE 14-1: dsPIC30F Preliminary DS70082G-page 99 dsPIC30F NOTES: DS70082G-page 100 Preliminary 2004 Microchip Technology Inc. dsPIC30F 15.0 MOTOR CONTROL PWM MODULE * Single Pulse Generation mode * Interrupt support for asymmetrical updates in Center Aligned mode * Output override control for Electrically Commutative Motor (ECM) operation * `Special Event' comparator for scheduling other peripheral events * FAULT pins to optionally drive each of the PWM output pins to a defined state Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). This module simplifies the task of generating multiple, synchronized Pulse Width Modulated (PWM) outputs. In particular, the following power and motion control applications are supported by the PWM module: * * * * This module contains 4 duty cycle generators, numbered 1 through 4. The module has 8 PWM output pins, numbered PWM1H/PWM1L through PWM4H/PWM4L. The eight I/O pins are grouped into high/low numbered pairs, denoted by the suffix H or L, respectively. For complementary loads, the low PWM pins are always the complement of the corresponding high I/O pin. Three Phase AC Induction Motor Switched Reluctance (SR) Motor Brushless DC (BLDC) Motor Uninterruptible Power Supply (UPS) There are two versions of the PWM module depending on the particular dsPIC30F device selected: an 8-output PWM module and a 6-output PWM module. The PWM module has the following features: * * * * 8 PWM I/O pins with 4 duty cycle generators Up to 16-bit resolution `On-the-Fly' PWM frequency changes Edge and Center Aligned Output modes TABLE 15-1: Simplified block diagrams of the 8-output and 6-output Motor Control PWM modules are shown in Figure 15-1 and Figure 15-2, respectively. FEATURE SUMMARY: 6-OUTPUT PWM VS. 8-OUTPUT PWM Feature I/O Pins PWM Generators FAULT Input Pins Dead-Time Generators 2004 Microchip Technology Inc. 6-Output PWM Module 8-Output PWM Module 6 3 1 1 8 4 2 2 Preliminary DS70082G-page 101 dsPIC30F FIGURE 15-1: 8-OUTPUT PWM MODULE BLOCK DIAGRAM PWMCON1 PWM Enable and Mode SFRs PWMCON2 DTCON1 Dead-Time Control SFRs DTCON2 FLTACON FAULT Pin Control SFRs FLTBCON OVDCON PWM Manual Control SFR PWM Generator #4 16-bit Data Bus PDC4 Buffer PDC4 Comparator PWM Generator #3 PTMR PWM4H Channel 4 Dead-Time Generator and Override Logic Channel 3 Dead-Time Generator and Override Logic Comparator PWM4L PWM3H Output Driver Block PWM Generator #2 Channel 2 Dead-Time Generator and Override Logic PTPER PWM Generator #1 Channel 1 Dead-Time Generator and Override Logic PTPER Buffer PWM3L PWM2H PWM2L PWM1H PWM1L FLTA PTCON FLTB Comparator SEVTDIR SEVTCMP Special Event Postscaler Special Event Trigger PTDIR PWM time base Note: Details of PWM Generator #1, #2, and #3 not shown for clarity. DS70082G-page 102 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 15-2: 6-OUTPUT PWM BLOCK DIAGRAM PWMCON1 PWM Enable and Mode SFRs PWMCON2 DTCON1 Dead-Time Control SFR FLTACON FAULT Pin Control SFR OVDCON PWM Manual Control SFR PWM Generator #3 16-bit Data Bus PDC3 Buffer PDC3 Comparator PWM Generator #2 PTMR PWM3H Channel 3 Dead-Time Generator and Override Logic Channel 2 Dead-Time Generator and Override Logic PWM3L Output Driver Block PWM2H PWM2L Comparator PWM Generator #1 PWM1H Channel 1 Dead-Time Generator and Override Logic PTPER PWM1L FLTA PTPER Buffer PTCON Special Event Postscaler Comparator SEVTDIR SEVTCMP Special Event Trigger PTDIR PWM time base Note: Details of PWM Generator #1 and #2 not shown for clarity. 2004 Microchip Technology Inc. Preliminary DS70082G-page 103 dsPIC30F The PWM module allows several modes of operation which are beneficial for specific power control applications. 15.1 PWM Time Base The PWM time base is provided by a 15-bit timer with a prescaler and postscaler. The time base is accessible via the PTMR SFR. PTMR<15> is a read only status bit, PTDIR, that indicates the present count direction of the PWM time base. If PTDIR is cleared, PTMR is counting upwards. If PTDIR is set, PTMR is counting downwards. The PWM time base is configured via the PTCON SFR. The time base is enabled/disabled by setting/clearing the PTEN bit in the PTCON SFR. PTMR is not cleared when the PTEN bit is cleared in software. The PTPER SFR sets the counting period for PTMR. The user must write a 15-bit value to PTPER<14:0>. When the value in PTMR<14:0> matches the value in PTPER<14:0>, the time base will either reset to 0, or reverse the count direction on the next occurring clock cycle. The action taken depends on the operating mode of the time base. Note: If the period register is set to 0x0000, the timer will stop counting, and the interrupt and the special event trigger will not be generated, even if the special event value is also 0x0000. The module will not update the period register, if it is already at 0x0000; therefore, the user must disable the module in order to update the period register. The PWM time base can be configured for four different modes of operation: * * * * Free Running mode Single Shot mode Continuous Up/Down Count mode Continuous Up/Down Count mode with interrupts for double updates These four modes are selected by the PTMOD<1:0> bits in the PTCON SFR. The Up/Down Counting modes support center aligned PWM generation. The Single Shot mode allows the PWM module to support pulse control of certain Electronically Commutative Motors (ECMs). The interrupt signals generated by the PWM time base depend on the mode selection bits (PTMOD<1:0>) and the postscaler bits (PTOPS<3:0>) in the PTCON SFR. 15.1.1 FREE RUNNING MODE In the Free Running mode, the PWM time base counts upwards until the value in the Time Base Period register (PTPER) is matched. The PTMR register is reset on DS70082G-page 104 the following input clock edge and the time base will continue to count upwards as long as the PTEN bit remains set. When the PWM time base is in the Free Running mode (PTMOD<1:0> = 00), an interrupt event is generated each time a match with the PTPER register occurs and the PTMR register is reset to zero. The postscaler selection bits may be used in this mode of the timer to reduce the frequency of the interrupt events. 15.1.2 SINGLE SHOT MODE In the Single Shot Counting mode, the PWM time base begins counting upwards when the PTEN bit is set. When the value in the PTMR register matches the PTPER register, the PTMR register will be reset on the following input clock edge and the PTEN bit will be cleared by the hardware to halt the time base. When the PWM time base is in the Single Shot mode (PTMOD<1:0> = 01), an interrupt event is generated when a match with the PTPER register occurs, the PTMR register is reset to zero on the following input clock edge, and the PTEN bit is cleared. The postscaler selection bits have no effect in this mode of the timer. 15.1.3 CONTINUOUS UP/DOWN COUNTING MODES In the Continuous Up/Down Counting modes, the PWM time base counts upwards until the value in the PTPER register is matched. The timer will begin counting downwards on the following input clock edge. The PTDIR bit in the PTCON SFR is read only and indicates the counting direction The PTDIR bit is set when the timer counts downwards. In the Up/Down Counting mode (PTMOD<1:0> = 10), an interrupt event is generated each time the value of the PTMR register becomes zero and the PWM time base begins to count upwards. The postscaler selection bits may be used in this mode of the timer to reduce the frequency of the interrupt events. 15.1.4 DOUBLE UPDATE MODE In the Double Update mode (PTMOD<1:0> = 11), an interrupt event is generated each time the PTMR register is equal to zero, as well as each time a period match occurs. The postscaler selection bits have no effect in this mode of the timer. The Double Update mode provides two additional functions to the user. First, the control loop bandwidth is doubled because the PWM duty cycles can be updated, twice per period. Second, asymmetrical center-aligned PWM waveforms can be generated, which are useful for minimizing output waveform distortion in certain motor control applications. Note: Preliminary Programming a value of 0x0001 in the period register could generate a continuous interrupt pulse, and hence, must be avoided. 2004 Microchip Technology Inc. dsPIC30F 15.1.5 PWM TIME BASE PRESCALER The input clock to PTMR (FOSC/4), has prescaler options of 1:1, 1:4, 1:16, or 1:64, selected by control bits PTCKPS<1:0> in the PTCON SFR. The prescaler counter is cleared when any of the following occurs: The maximum resolution (in bits) for a given device oscillator and PWM frequency can be determined using Equation 15-2: EQUATION 15-2: * a write to the PTMR register * a write to the PTCON register * any device Reset PWM TIME BASE POSTSCALER The match output of PTMR can optionally be postscaled through a 4-bit postscaler (which gives a 1:1 to 1:16 scaling). The postscaler counter is cleared when any of the following occurs: * a write to the PTMR register * a write to the PTCON register * any device Reset The PTMR register is not cleared when PTCON is written. 15.2 PWM Period PTPER is a 15-bit register and is used to set the counting period for the PWM time base. PTPER is a double buffered register. The PTPER buffer contents are loaded into the PTPER register at the following instants: * Free Running and Single Shot modes: When the PTMR register is reset to zero after a match with the PTPER register. * Up/Down Counting modes: When the PTMR register is zero. 15.3 EQUATION 15-1: TPWM = can be determined log (2) Edge Aligned PWM Edge aligned PWM signals are produced by the module when the PWM time base is in the Free Running or Single Shot mode. For edge aligned PWM outputs, the output has a period specified by the value in PTPER and a duty cycle specified by the appropriate duty cycle register (see Figure 15-3). The PWM output is driven active at the beginning of the period (PTMR = 0) and is driven inactive when the value in the duty cycle register matches PTMR. If the value in a particular duty cycle register is zero, then the output on the corresponding PWM pin will be inactive for the entire PWM period. In addition, the output on the PWM pin will be active for the entire PWM period if the value in the duty cycle register is greater than the value held in the PTPER register. FIGURE 15-3: EDGE ALIGNED PWM New Duty Cycle Latched PTPER PTMR Value The value held in the PTPER buffer is automatically loaded into the PTPER register when the PWM time base is disabled (PTEN = 0). The PWM period Equation 15-1: log (2 * TPWM / TCY) Resolution = The PTMR register is not cleared when PTCON is written. 15.1.6 PWM RESOLUTION 0 using Duty Cycle Period PWM PERIOD TCY * (PTPER + 1) 15.4 (PTMR Prescale Value) Note: PWM period will be twice the value provided by this equation when using center aligned modes. If the PWM time base is configured for one of the Up/ Down Count modes, the PWM period will be twice the value provided by Equation 15-1. 2004 Microchip Technology Inc. Center Aligned PWM Center aligned PWM signals are produced by the module when the PWM time base is configured in an Up/ Down Counting mode (see Figure 15-4). The PWM compare output is driven to the active state when the value of the duty cycle register matches the value of PTMR and the PWM time base is counting downwards (PTDIR = 1). The PWM compare output is driven to the inactive state when the PWM time base is counting upwards (PTDIR = 0) and the value in the PTMR register matches the duty cycle value. Preliminary DS70082G-page 105 dsPIC30F If the value in a particular duty cycle register is zero, then the output on the corresponding PWM pin will be inactive for the entire PWM period. In addition, the output on the PWM pin will be active for the entire PWM period if the value in the duty cycle register is equal to the value held in the PTPER register. FIGURE 15-4: CENTER ALIGNED PWM Period/2 15.6 PTPER PTMR Value Duty Cycle In Complementary mode, the duty cycle comparison units are assigned to the PWM outputs as follows: * * * * Period PWM Duty Cycle Comparison Units There are four 16-bit special function registers (PDC1, PDC2, PDC3 and PDC4) used to specify duty cycle values for the PWM module. The value in each duty cycle register determines the amount of time that the PWM output is in the active state. The duty cycle registers are 16-bits wide. The LS bit of a duty cycle register determines whether the PWM edge occurs in the beginning. Thus, the PWM resolution is effectively doubled. 15.5.1 Complementary PWM Operation In the Complementary mode of operation, each pair of PWM outputs is obtained by a complementary PWM signal. A dead-time may be optionally inserted during device switching, when both outputs are inactive for a short period (Refer to Section 15.7). 0 15.5 When the PWM time base is in the Up/Down Counting mode with double updates, new duty cycle values are updated when the value of the PTMR register is zero, and when the value of the PTMR register matches the value in the PTPER register. The contents of the duty cycle buffers are automatically loaded into the duty cycle registers when the PWM time base is disabled (PTEN = 0). DUTY CYCLE REGISTER BUFFERS The four PWM duty cycle registers are double buffered to allow glitchless updates of the PWM outputs. For each duty cycle, there is a duty cycle register that is accessible by the user and a second duty cycle register that holds the actual compare value used in the present PWM period. For edge aligned PWM output, a new duty cycle value will be updated whenever a match with the PTPER register occurs and PTMR is reset. The contents of the duty cycle buffers are automatically loaded into the duty cycle registers when the PWM time base is disabled (PTEN = 0) and the UDIS bit is cleared in PWMCON2. When the PWM time base is in the Up/Down Counting mode, new duty cycle values are updated when the value of the PTMR register is zero and the PWM time base begins to count upwards. The contents of the duty cycle buffers are automatically loaded into the duty cycle registers when the PWM time base is disabled (PTEN = 0). DS70082G-page 106 PDC1 register controls PWM1H/PWM1L outputs PDC2 register controls PWM2H/PWM2L outputs PDC3 register controls PWM3H/PWM3L outputs PDC4 register controls PWM4H/PWM4L outputs The Complementary mode is selected for each PWM I/O pin pair by clearing the appropriate PMODx bit in the PWMCON1 SFR. The PWM I/O pins are set to Complementary mode by default upon a device Reset. 15.7 Dead-Time Generators Dead-time generation may be provided when any of the PWM I/O pin pairs are operating in the Complementary Output mode. The PWM outputs use PushPull drive circuits. Due to the inability of the power output devices to switch instantaneously, some amount of time must be provided between the turn off event of one PWM output in a complementary pair and the turn on event of the other transistor. The PWM module allows two different dead-times to be programmed. These two dead-times may be used in one of two methods described below to increase user flexibility: * The PWM output signals can be optimized for different turn off times in the high side and low side transistors in a complementary pair of transistors. The first dead-time is inserted between the turn off event of the lower transistor of the complementary pair and the turn on event of the upper transistor. The second dead-time is inserted between the turn off event of the upper transistor and the turn on event of the lower transistor. * The two dead-times can be assigned to individual PWM I/O pin pairs. This Operating mode allows the PWM module to drive different transistor/load combinations with each complementary PWM I/O pin pair. Preliminary 2004 Microchip Technology Inc. dsPIC30F 15.7.1 15.7.3 DEAD-TIME GENERATORS Each complementary output pair for the PWM module has a 6-bit down counter that is used to produce the dead-time insertion. As shown in Figure 15-5, each dead-time unit has a rising and falling edge detector connected to the duty cycle comparison output. 15.7.2 DEAD-TIME ASSIGNMENT The DTCON2 SFR contains control bits that allow the dead-times to be assigned to each of the complementary outputs. Table 15-2 summarizes the function of each dead-time selection control bit. TABLE 15-2: DEAD-TIME SELECTION BITS Bit Function DTS1A DTS1I Selects PWM1L/PWM1H active edge dead-time. Selects PWM1L/PWM1H inactive edge dead-time. DTS2A DTS2I Selects PWM2L/PWM2H active edge dead-time. Selects PWM2L/PWM2H inactive edge dead-time. DTS3A DTS3I Selects PWM3L/PWM3H active edge dead-time. Selects PWM3L/PWM3H inactive edge dead-time. DTS4A DTS4I Selects PWM4L/PWM4H active edge dead-time. Selects PWM4L/PWM4H inactive edge dead-time. FIGURE 15-5: DEAD-TIME RANGES The amount of dead-time provided by each dead-time unit is selected by specifying the input clock prescaler value and a 6-bit unsigned value. The amount of deadtime provided by each unit may be set independently. Four input clock prescaler selections have been provided to allow a suitable range of dead-times, based on the device operating frequency. The clock prescaler option may be selected independently for each of the two dead-time values. The dead-time clock prescaler values are selected using the DTAPS<1:0> and DTBPS<1:0> control bits in the DTCON1 SFR. One of four clock prescaler options (TCY, 2TCY, 4TCY or 8TCY) may be selected for each of the dead-time values. After the prescaler values are selected, the dead-time for each unit is adjusted by loading two 6-bit unsigned values into the DTCON1 SFR. The dead-time unit prescalers are cleared on the following events: * On a load of the down timer due to a duty cycle comparison edge event. * On a write to the DTCON1 or DTCON2 registers. * On any device Reset. Note: The user should not modify the DTCON1 or DTCON2 values while the PWM module is operating (PTEN = 1). Unexpected results may occur. DEAD-TIME TIMING DIAGRAM Duty Cycle Generator PWMxH PWMxL Time selected by DTSxA bit (A or B) 15.8 Time selected by DTSxI bit (A or B) Independent PWM Output An independent PWM Output mode is required for driving certain types of loads. A particular PWM output pair is in the Independent Output mode when the corresponding PMOD bit in the PWMCON1 register is set. No dead-time control is implemented between adjacent PWM I/O pins when the module is operating in the Independent mode and both I/O pins are allowed to be active simultaneously. 2004 Microchip Technology Inc. In the Independent mode, each duty cycle generator is connected to both of the PWM I/O pins in an output pair. By using the associated duty cycle register and the appropriate bits in the OVDCON register, the user may select the following signal output options for each PWM I/O pin operating in the Independent mode: * I/O pin outputs PWM signal * I/O pin inactive * I/O pin active Preliminary DS70082G-page 107 dsPIC30F 15.9 Single Pulse PWM Operation The PWM module produces single pulse outputs when the PTCON control bits PTMOD<1:0> = 10. Only edge aligned outputs may be produced in the Single Pulse mode. In Single Pulse mode, the PWM I/O pin(s) are driven to the active state when the PTEN bit is set. When a match with a duty cycle register occurs, the PWM I/O pin is driven to the inactive state. When a match with the PTPER register occurs, the PTMR register is cleared, all active PWM I/O pins are driven to the inactive state, the PTEN bit is cleared, and an interrupt is generated. 15.10 PWM Output Override states after a device Reset occurs. The PWMPIN configuration fuse allows the PWM module outputs to be optionally enabled on a device Reset. If PWMPIN = 0, the PWM outputs will be driven to their inactive states at Reset. If PWMPIN = 1 (default), the PWM outputs will be tri-stated. The HPOL bit specifies the polarity for the PWMxH outputs, whereas the LPOL bit specifies the polarity for the PWMxL outputs. 15.11.1 OUTPUT PIN CONTROL The PEN<4:1>H and PEN<4:1>L control bits in the PWMCON1 SFR enable each high PWM output pin and each low PWM output pin, respectively. If a particular PWM output pin not enabled, it is treated as a general purpose I/O pin. The PWM output override bits allow the user to manually drive the PWM I/O pins to specified logic states, independent of the duty cycle comparison units. 15.12 PWM FAULT Pins All control bits associated with the PWM output override function are contained in the OVDCON register. The upper half of the OVDCON register contains eight bits, POVDxH<4:1> and POVDxL<4:1>, that determine which PWM I/O pins will be overridden. The lower half of the OVDCON register contains eight bits, POUTxH<4:1> and POUTxL<4:1>, that determine the state of the PWM I/O pins when a particular output is overridden via the POVD bits. 15.12.1 15.10.1 COMPLEMENTARY OUTPUT MODE When a PWMxL pin is driven active via the OVDCON register, the output signal is forced to be the complement of the corresponding PWMxH pin in the pair. Dead-time insertion is still performed when PWM channels are overridden manually. 15.10.2 There are two FAULT pins (FLTA and FLTB) associated with the PWM module. When asserted, these pins can optionally drive each of the PWM I/O pins to a defined state. The FLTACON and FLTBCON SFRs each have 4 control bits that determine whether a particular pair of PWM I/O pins is to be controlled by the FAULT input pin. To enable a specific PWM I/O pin pair for FAULT overrides, the corresponding bit should be set in the FLTACON or FLTBCON register. If all enable bits are cleared in the FLTACON or FLTBCON registers, then the corresponding FAULT input pin has no effect on the PWM module and the pin may be used as a general purpose interrupt or I/O pin. Note: OVERRIDE SYNCHRONIZATION If the OSYNC bit in the PWMCON2 register is set, all output overrides performed via the OVDCON register are synchronized to the PWM time base. Synchronous output overrides occur at the following times: * Edge Aligned mode, when PTMR is zero. * Center Aligned modes, when PTMR is zero and when the value of PTMR matches PTPER. 15.12.2 15.11 PWM Output and Polarity Control There are three device configuration bits associated with the PWM module that provide PWM output pin control: * HPOL configuration bit * LPOL configuration bit * PWMPIN configuration bit These three bits in the FPORBOR configuration register (see Section 21) work in conjunction with the four PWM enable bits (PWMEN<4:1>) located in the PWMCON1 SFR. The configuration bits and PWM enable bits ensure that the PWM pins are in the correct DS70082G-page 108 FAULT PIN ENABLE BITS The FAULT pin logic can operate independent of the PWM logic. If all the enable bits in the FLTACON/FLTBCON register are cleared, then the FAULT pin(s) could be used as general purpose interrupt pin(s). Each FAULT pin has an interrupt vector, interrupt flag bit and interrupt priority bits associated with it. FAULT STATES The FLTACON and FLTBCON special function registers have 8 bits each that determine the state of each PWM I/O pin when it is overridden by a FAULT input. When these bits are cleared, the PWM I/O pin is driven to the inactive state. If the bit is set, the PWM I/O pin will be driven to the active state. The active and inactive states are referenced to the polarity defined for each PWM I/O pin (HPOL and LPOL polarity control bits). A special case exists when a PWM module I/O pair is in the Complementary mode and both pins are programmed to be active on a FAULT condition. The PWMxH pin always has priority in the Complementary mode, so that both I/O pins cannot be driven active simultaneously. Preliminary 2004 Microchip Technology Inc. dsPIC30F 15.12.3 FAULT PIN PRIORITY 15.14 PWM Special Event Trigger If both FAULT input pins have been assigned to control a particular PWM I/O pin, the FAULT state programmed for the FAULT A input pin will take priority over the FAULT B input pin. 15.12.4 FAULT INPUT MODES Each of the FAULT input pins has two modes of operation: * Latched Mode: When the FAULT pin is driven low, the PWM outputs will go to the states defined in the FLTACON/FLTBCON register. The PWM outputs will remain in this state until the FAULT pin is driven high and the corresponding interrupt flag has been cleared in software. When both of these actions have occurred, the PWM outputs will return to normal operation at the beginning of the next PWM cycle or half-cycle boundary. If the interrupt flag is cleared before the FAULT condition ends, the PWM module will wait until the FAULT pin is no longer asserted, to restore the outputs. * Cycle-by-Cycle Mode: When the FAULT input pin is driven low, the PWM outputs remain in the defined FAULT states for as long as the FAULT pin is held low. After the FAULT pin is driven high, the PWM outputs return to normal operation at the beginning of the following PWM cycle or half-cycle boundary. The Operating mode for each FAULT input pin is selected using the FLTAM and FLTBM control bits in the FLTACON and FLTBCON Special Function Registers. The PWM module has a special event trigger that allows A/D conversions to be synchronized to the PWM time base. The A/D sampling and conversion time may be programmed to occur at any point within the PWM period. The special event trigger allows the user to minimize the delay between the time when A/D conversion results are acquired and the time when the duty cycle value is updated. The PWM special event trigger has an SFR named SEVTCMP, and five control bits to control its operation. The PTMR value for which a special event trigger should occur is loaded into the SEVTCMP register. When the PWM time base is in an Up/Down Counting mode, an additional control bit is required to specify the counting phase for the special event trigger. The count phase is selected using the SEVTDIR control bit in the SEVTCMP SFR. If the SEVTDIR bit is cleared, the special event trigger will occur on the upward counting cycle of the PWM time base. If the SEVTDIR bit is set, the special event trigger will occur on the downward count cycle of the PWM time base. The SEVTDIR control bit has no effect unless the PWM time base is configured for an Up/Down Counting mode. 15.14.1 SPECIAL EVENT TRIGGER POSTSCALER The PWM special event trigger has a postscaler that allows a 1:1 to 1:16 postscale ratio. The postscaler is configured by writing the SEVOPS<3:0> control bits in the PWMCON2 SFR. The special event output postscaler is cleared on the following events: Each of the FAULT pins can be controlled manually in software. * Any write to the SEVTCMP register * Any device Reset 15.13 PWM Update Lockout 15.15 PWM Operation During CPU Sleep Mode For a complex PWM application, the user may need to write up to four duty cycle registers and the time base period register, PTPER, at a given time. In some applications, it is important that all buffer registers be written before the new duty cycle and period values are loaded for use by the module. The PWM update lockout feature is enabled by setting the UDIS control bit in the PWMCON2 SFR. The UDIS bit affects all duty cycle buffer registers and the PWM time base period buffer, PTPER. No duty cycle changes or period value changes will have effect while UDIS = 1. 2004 Microchip Technology Inc. The FAULT A and FAULT B input pins have the ability to wake the CPU from Sleep mode. The PWM module generates an interrupt if either of the FAULT pins is driven low while in Sleep. 15.16 PWM Operation During CPU Idle Mode The PTCON SFR contains a PTSIDL control bit. This bit determines if the PWM module will continue to operate or stop when the device enters Idle mode. If PTSIDL = 0, the module will continue to operate. If PTSIDL = 1, the module will stop operation as long as the CPU remains in Idle mode. Preliminary DS70082G-page 109 01C6 SEVTDIR SEVTCMP DS70082G-page 110 01D0 FLTACON -- -- -- -- -- -- 01D8 01DA 01DC PDC2 PDC3 PDC4 FBOV2L PTEN 01C0 01C2 01C4 01C6 SEVTDIR PTMR PTPER Preliminary SEVTCMP 01D8 01DA PDC2 PDC3 -- Bit 7 u = uninitialized bit Bit 13 -- -- -- -- Bit 12 FAOV2H -- -- -- Bit 11 POVD3H POVD3L POVD2H FAOV3H FAOV3L -- -- -- PTSIDL POVD2L FAOV2L -- PWM Time Base Period Register POVD1L -- -- FLTAM PWM Duty Cycle #3 Register PWM Duty Cycle #2 Register -- -- DTAPS<1:0> -- PEN3H PWM Duty Cycle #1 Register POVD1H FAOV1L -- -- Bit 5 Bit 2 -- PEN3L FBEN4 FAEN4 DTS2A FBEN3 FAEN3 DTS2I Dead-Time A Value -- PEN4L PTCKPS<1:0> Bit 3 Bit 0 FBEN2 FAEN2 DTS1A OSYNC PEN2L FBEN1 FAEN1 DTS1I UDIS PEN1L PTMOD<1:0> Bit 1 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 -- -- PEN1H Bit 4 Bit 2 -- PEN3L -- FAEN3 Dead-Time A Value -- -- PTCKPS<1:0> Bit 3 Bit 0 FAEN2 OSYNC PEN2L FAEN1 UDIS PEN1L PTMOD<1:0> Bit 1 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0111 0111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 POUT3H POUT3L POUT2H POUT2L POUT1H POUT1L 0011 1111 0000 0000 -- -- PEN2H PTOPS<3:0> Bit 6 PWM Special Event Compare Register FAOV1H -- Bit 7 PWM Timer Count Value -- Bit 8 PTMOD2 PTMOD1 -- Bit 9 PWM Duty Cycle #4 Register PWM Duty Cycle #3 Register -- -- DTS3I -- PEN1H Bit 4 POUT3H POUT3L POUT2H POUT2L POUT1H POUT1L 1111 1111 0000 0000 -- -- -- -- DTS3A -- PEN2H DTS4I PWM Duty Cycle #2 Register SEVOPS<3:0> PTMOD3 -- Bit 10 FLTBM FLTAM DTS4A POVD1L POUT4H POUT4L FBOV1L FAOV1L -- PWM Duty Cycle #1 Register POVD1H FBOV1H FAOV1H -- -- PEN3H DTAPS<1:0> -- PEN4H PWM Special Event Compare Register PTMOD2 PTMOD1 Bit 5 PTOPS<3:0> Bit 6 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. Legend: 01D6 PDC1 -- 01D4 OVDCON -- 01D0 FLTACON -- -- -- -- 01CC -- -- Bit 14 -- -- PWMCON2 01CA DTCON1 -- PWMCON1 01C8 -- PTDIR Bit 15 SFR Name Addr. 6-OUTPUT PWM REGISTER MAP PTCON FAOV2L -- POVD2L TABLE 15-4: u = uninitialized bit 01D6 PDC1 FBOV4H FBOV4L FBOV3H FBOV3L FBOV2H 01D2 01D4 POVD4H POVD4L POVD3H POVD3L POVD2H FAOV2H -- OVDCON Legend: -- SEVOPS<3:0> PTMOD3 -- Dead-Time B Value PTMOD4 FLTBCON FAOV4H FAOV4L FAOV3H FAOV3L -- 01CE DTCON2 -- 01CC -- -- DTBPS<1:0> PWMCON2 01CA DTCON1 -- PWMCON1 01C8 -- -- Bit 8 PWM Time Base Period Register -- Bit 9 -- 01C4 PTPER PTSIDL Bit 10 PWM Timer Count Value -- Bit 11 PTEN Bit 12 PTDIR 01C0 01C2 PTCON PTMR Bit 13 SFR Name Addr. Bit 14 8-OUTPUT PWM REGISTER MAP Bit 15 TABLE 15-3: dsPIC30F 2004 Microchip Technology Inc. dsPIC30F 16.0 SPITM MODULE Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). The Serial Peripheral Interface (SPI) module is a synchronous serial interface. It is useful for communicating with other peripheral devices such as EEPROMs, shift registers, display drivers and A/D converters, or other microcontrollers. It is compatible with Motorola's SPI and SIOP interfaces. 16.1 Operating Function Description Transmit writes are also double buffered. The user writes to SPIxBUF. When the master or slave transfer is completed, the contents of the shift register (SPIxSR) is moved to the receive buffer. If any transmit data has been written to the buffer register, the contents of the transmit buffer are moved to SPIxSR. The received data is thus placed in SPIxBUF and the transmit data in SPIxSR is ready for the next transfer. Note: Both the transmit buffer (SPIxTXB) and the receive buffer (SPIxRXB) are mapped to the same register address, SPIxBUF. In Master mode, the clock is generated by prescaling the system clock. Data is transmitted as soon as a value is written to SPIxBUF. The interrupt is generated at the middle of the transfer of the last bit. Each SPI module consists of a 16-bit shift register, SPIxSR (where x = 1 or 2), used for shifting data in and out, and a buffer register, SPIxBUF. A control register, SPIxCON, configures the module. Additionally, a status register, SPIxSTAT, indicates various status conditions. In Slave mode, data is transmitted and received as external clock pulses appear on SCK. Again, the interrupt is generated when the last bit is latched. If SSx control is enabled, then transmission and reception are enabled only when SSx = low. The SDOx output will be disabled in SSx mode with SSx high. The serial interface consists of 4 pins: SDIx (serial data input), SDOx (serial data output), SCKx (shift clock input or output), and SSx (active low slave select). The clock provided to the module is (FOSC/4). This clock is then prescaled by the primary (PPRE<1:0>) and the secondary (SPRE<2:0>) prescale factors. The CKE bit determines whether transmit occurs on transition from active clock state to Idle clock state, or vice versa. The CKP bit selects the Idle state (high or low) for the clock. In Master mode operation, SCK is a clock output, but in Slave mode, it is a clock input. A series of eight (8) or sixteen (16) clock pulses shifts out bits from the SPIxSR to SDOx pin and simultaneously shifts in data from SDIx pin. An interrupt is generated when the transfer is complete and the corresponding interrupt flag bit (SPI1IF or SPI2IF) is set. This interrupt can be disabled through an interrupt enable bit (SPI1IE or SPI2IE). The receive operation is double buffered. When a complete byte is received, it is transferred from SPIxSR to SPIxBUF. If the receive buffer is full when new data is being transferred from SPIxSR to SPIxBUF, the module will set the SPIROV bit, indicating an overflow condition. The transfer of the data from SPIxSR to SPIxBUF will not be completed and the new data will be lost. The module will not respond to SCL transitions while SPIROV is 1, effectively disabling the module until SPIxBUF is read by user software. 16.1.1 WORD AND BYTE COMMUNICATION A control bit, MODE16 (SPIxCON<10>), allows the module to communicate in either 16-bit or 8-bit mode. 16-bit operation is identical to 8-bit operation, except that the number of bits transmitted is 16 instead of 8. The user software must disable the module prior to changing the MODE16 bit. The SPI module is reset when the MODE16 bit is changed by the user. A basic difference between 8-bit and 16-bit operation is that the data is transmitted out of bit 7 of the SPIxSR for 8-bit operation, and data is transmitted out of bit 15 of the SPIxSR for 16-bit operation. In both modes, data is shifted into bit 0 of the SPIxSR. 16.1.2 SDOx DISABLE A control bit, DISSDO, is provided to the SPIxCON register to allow the SDOx output to be disabled. This will allow the SPI module to be connected in an input only configuration. SDO can also be used for general purpose I/O. 2004 Microchip Technology Inc. Preliminary DS70082G-page 111 dsPIC30F FIGURE 16-1: SPI BLOCK DIAGRAM Internal Data Bus Read Write SPIxBUF SPIxBUF Transmit Receive SPIxSR SDIx bit0 SDOx Shift clock Clock Control SS & FSYNC Control SSx Edge Select Secondary Prescaler 1,2,4,6,8 SCKx Primary Prescaler 1, 4, 16, 64 FCY Enable Master Clock Note: x = 1 or 2. FIGURE 16-2: SPI MASTER/SLAVE CONNECTION SPI Master SPI Slave SDOx SDIy Serial Input Buffer (SPIxBUF) SDIx Shift Register (SPIxSR) MSb Serial Input Buffer (SPIyBUF) SDOy LSb Shift Register (SPIySR) MSb SCKx Serial Clock PROCESSOR 1 LSb SCKy PROCESSOR 2 Note: x = 1 or 2, y = 1 or 2. DS70082G-page 112 Preliminary 2004 Microchip Technology Inc. dsPIC30F 16.2 Framed SPI Support 16.4 The module supports a basic framed SPI protocol in Master or Slave mode. The control bit FRMEN enables framed SPI support and causes the SSx pin to perform the frame synchronization pulse (FSYNC) function. The control bit SPIFSD determines whether the SSx pin is an input or an output (i.e., whether the module receives or generates the frame synchronization pulse). The frame pulse is an active high pulse for a single SPI clock cycle. When frame synchronization is enabled, the data transmission starts only on the subsequent transmit edge of the SPI clock. 16.3 Slave Select Synchronization The SSx pin allows a Synchronous Slave mode. The SPI must be configured in SPI Slave mode, with SSx pin control enabled (SSEN = 1). When the SSx pin is low, transmission and reception are enabled, and the SDOx pin is driven. When SSx pin goes high, the SDOx pin is no longer driven. Also, the SPI module is resynchronized, and all counters/control circuitry are reset. Therefore, when the SSx pin is asserted low again, transmission/reception will begin at the MS bit, even if SSx had been de-asserted in the middle of a transmit/receive. 2004 Microchip Technology Inc. SPI Operation During CPU Sleep Mode During Sleep mode, the SPI module is shut-down. If the CPU enters Sleep mode while an SPI transaction is in progress, then the transmission and reception is aborted. The transmitter and receiver will stop in Sleep mode. However, register contents are not affected by entering or exiting Sleep mode. 16.5 SPI Operation During CPU Idle Mode When the device enters Idle mode, all clock sources remain functional. The SPISIDL bit (SPIxSTAT<13>) selects if the SPI module will stop or continue on Idle. If SPISIDL = 0, the module will continue to operate when the CPU enters Idle mode. If SPISIDL = 1, the module will stop when the CPU enters Idle mode. Preliminary DS70082G-page 113 0220 0222 SPI1STAT SPI1CON SPISIDL -- FRMEN SPIEN -- DS70082G-page 114 0226 0228 SPI2STAT SPI2CON -- -- Bit 12 -- SPIEN Bit 15 Bit 13 SPIFSD SPISIDL -- -- Bit 12 -- Bit 10 -- Bit 10 DISSDO MODE16 -- Bit 11 DISSDO MODE16 -- Bit 11 CKE -- Bit 8 SSEN -- Bit 7 CKP SPIROV Bit 6 CKE -- Bit 8 SSEN -- Bit 7 Bit 6 CKP SPIROV Transmit and Receive Buffer SMP -- Bit 9 Transmit and Receive Buffer SMP -- Bit 9 MSTEN -- Bit 5 MSTEN -- Bit 5 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. FRMEN -- Bit 14 SPI2 REGISTER MAP SPI2BUF 022A Legend: u = uninitialized bit Addr. SFR Name TABLE 16-2: SPIFSD Bit 13 Bit 14 Bit 15 SPI1 REGISTER MAP SPI1BUF 0224 Legend: u = uninitialized bit Addr. SFR Name TABLE 16-1: SPRE2 -- Bit 4 SPRE2 -- Bit 4 -- Bit 2 SPRE0 -- Bit 2 SPRE1 SPRE0 -- Bit 3 SPRE1 -- Bit 3 PPRE1 SPITBF Bit 1 PPRE1 SPITBF Bit 1 Reset State PPRE0 SPIRBF Bit 0 PPRE0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 SPIRBF 0000 0000 0000 0000 Bit 0 dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 17.0 I2C MODULE 17.1 Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). The Inter-Integrated Circuit (I2C) module provides complete hardware support for both Slave and MultiMaster modes of the I2C serial communication standard, with a 16-bit interface. This module offers the following key features: * I2C interface supporting both Master and Slave operation. * I2C Slave mode supports 7 and 10-bit address. * I2C Master mode supports 7 and 10-bit address. * I2C port allows bi-directional transfers between master and slaves. * Serial clock synchronization for I2C port can be used as a handshake mechanism to suspend and resume serial transfer (SCLREL control). * I2C supports Multi-Master operation; detects bus collision and will arbitrate accordingly. FIGURE 17-1: Operating Function Description The hardware fully implements all the master and slave functions of the I2C Standard and Fast mode specifications, as well as 7 and 10-bit addressing. Thus, the I2C module can operate either as a slave or a master on an I2C bus. 17.1.1 VARIOUS I2C MODES The following types of I2C operation are supported: * * * I2C Slave operation with 7-bit address I2C Slave operation with 10-bit address I2C Master operation with 7 or 10-bit address See the I2C programmer's model in Figure 17-1. 17.1.2 PIN CONFIGURATION IN I2C MODE I2C has a 2-pin interface; pin SCL is clock and pin SDA is data. PROGRAMMER'S MODEL I2CRCV (8 bits) bit 7 bit 0 bit 7 bit 0 I2CTRN (8 bits) I2CBRG (9 bits) bit 8 bit 0 I2CCON (16-bits) bit 15 bit 0 bit 15 bit 0 I2CSTAT (16-bits) I2CADD (10-bits) bit 9 17.1.3 bit 0 I2C REGISTERS I2CCON and I2CSTAT are control and status registers, respectively. The I2CCON register is readable and writable. The lower 6 bits of I2CSTAT are read only. The remaining bits of the I2CSTAT are read/write. I2CRSR is the shift register used for shifting data, whereas I2CRCV is the buffer register to which data bytes are written, or from which data bytes are read. I2CRCV is the receive buffer, as shown in Figure 16-1. I2CTRN is the transmit register to which bytes are written during a transmit operation, as shown in Figure 16-2. 2004 Microchip Technology Inc. The I2CADD register holds the slave address. A status bit, ADD10, indicates 10-bit Address mode. The I2CBRG acts as the baud rate generator reload value. In receive operations, I2CRSR and I2CRCV together form a double buffered receiver. When I2CRSR receives a complete byte, it is transferred to I2CRCV and an interrupt pulse is generated. During transmission, the I2CTRN is not double buffered. Note: Preliminary Following a Restart condition in 10-bit mode, the user only needs to match the first 7-bit address. DS70082G-page 115 dsPIC30F FIGURE 17-2: I2C BLOCK DIAGRAM Internal Data Bus I2CRCV Read SCL Shift Clock I2CRSR LSB SDA Addr_Match Match Detect Write I2CADD Read Start and Stop bit Detect I2CSTAT Write Control Logic Start, Restart, Stop bit Generate Write I2CCON Collision Detect Acknowledge Generation Clock Stretching Read Read Write I2CTRN LSB Shift Clock Read Reload Control BRG Down Counter DS70082G-page 116 Write I2CBRG FOSC Preliminary Read 2004 Microchip Technology Inc. dsPIC30F 17.2 I2C Module Addresses 17.3.2 The I2CADD register contains the Slave mode addresses. The register is a 10-bit register. If the A10M bit (I2CCON<10>) is `0', the address is interpreted by the module as a 7-bit address. When an address is received, it is compared to the 7 LS bits of the I2CADD register. If the A10M bit is 1, the address is assumed to be a 10bit address. When an address is received, it will be compared with the binary value `1 1 1 1 0 A9 A8' (where A9, A8 are two Most Significant bits of I2CADD). If that value matches, the next address will be compared with the Least Significant 8-bits of I2CADD, as specified in the 10-bit addressing protocol. TABLE 17-1: 0x00 SLAVE RECEPTION If the R_W bit received is a '0' during an address match, then Receive mode is initiated. Incoming bits are sampled on the rising edge of SCL. After 8 bits are received, if I2CRCV is not full or I2COV is not set, I2CRSR is transferred to I2CRCV. ACK is sent on the ninth clock. If the RBF flag is set, indicating that I2CRCV is still holding data from a previous operation (RBF = 1), then ACK is not sent; however, the interrupt pulse is generated. In the case of an overflow, the contents of the I2CRSR are not loaded into the I2CRCV. Note: 7-BIT I2C SLAVE ADDRESSES SUPPORTED BY dsPIC30F General call address or start byte The I2CRCV will be loaded if the I2COV bit = 1 and the RBF flag = 0. In this case, a read of the I2CRCV was performed, but the user did not clear the state of the I2COV bit before the next receive occurred. The acknowledgement is not sent (ACK = 1) and the I2CRCV is updated. 0x01-0x03 Reserved 0x04-0x77 Valid 7-bit addresses 0x78-0x7b Valid 10-bit addresses (lower 7 bits) 17.4 0x7c-0x7f Reserved In 10-bit mode, the basic receive and transmit operations are the same as in the 7-bit mode. However, the criteria for address match is more complex. 17.3 I2C 7-bit Slave Mode Operation Once enabled (I2CEN = 1), the slave module will wait for a Start bit to occur (i.e., the I2C module is `Idle'). Following the detection of a Start bit, 8 bits are shifted into I2CRSR and the address is compared against I2CADD. In 7-bit mode (A10M = 0), bits I2CADD<6:0> are compared against I2CRSR<7:1> and I2CRSR<0> is the R_W bit. All incoming bits are sampled on the rising edge of SCL. If an address match occurs, an acknowledgement will be sent, and the slave event interrupt flag (SI2CIF) is set on the falling edge of the ninth (ACK) bit. The address match does not affect the contents of the I2CRCV buffer or the RBF bit. 17.3.1 SLAVE TRANSMISSION If the R_W bit received is a '1', then the serial port will go into Transmit mode. It will send ACK on the ninth bit and then hold SCL to '0' until the CPU responds by writing to I2CTRN. SCL is released by setting the SCLREL bit, and 8 bits of data are shifted out. Data bits are shifted out on the falling edge of SCL, such that SDA is valid during SCL high (see timing diagram). The interrupt pulse is sent on the falling edge of the ninth clock pulse, regardless of the status of the ACK received from the master. I2C 10-bit Slave Mode Operation The I2C specification dictates that a slave must be addressed for a write operation, with two address bytes following a Start bit. The A10M bit is a control bit that signifies that the address in I2CADD is a 10-bit address rather than a 7-bit address. The address detection protocol for the first byte of a message address is identical for 7-bit and 10-bit messages, but the bits being compared are different. I2CADD holds the entire 10-bit address. Upon receiving an address following a Start bit, I2CRSR <7:3> is compared against a literal `11110' (the default 10-bit address) and I2CRSR<2:1> are compared against I2CADD<9:8>. If a match occurs and if R_W = 0, the interrupt pulse is sent. The ADD10 bit will be cleared to indicate a partial address match. If a match fails or R_W = 1, the ADD10 bit is cleared and the module returns to the Idle state. The low byte of the address is then received and compared with I2CADD<7:0>. If an address match occurs, the interrupt pulse is generated and the ADD10 bit is set, indicating a complete 10-bit address match. If an address match did not occur, the ADD10 bit is cleared and the module returns to the Idle state. 17.4.1 10-BIT MODE SLAVE TRANSMISSION Once a slave is addressed in this fashion, with the full 10-bit address (we will refer to this state as "PRIOR_ADDR_MATCH"), the master can begin sending data bytes for a slave reception operation. 2004 Microchip Technology Inc. Preliminary DS70082G-page 117 dsPIC30F 17.4.2 10-BIT MODE SLAVE RECEPTION Once addressed, the master can generate a Repeated Start, reset the high byte of the address and set the R_W bit without generating a Stop bit, thus initiating a slave transmit operation. 17.5 Automatic Clock Stretch In the Slave modes, the module can synchronize buffer reads and write to the master device by clock stretching. 17.5.1 TRANSMIT CLOCK STRETCHING Both 10-bit and 7-bit Transmit modes implement clock stretching by asserting the SCLREL bit after the falling edge of the ninth clock if the TBF bit is cleared, indicating the buffer is empty. Clock stretching takes place following the ninth clock of the receive sequence. On the falling edge of the ninth clock at the end of the ACK sequence, if the RBF bit is set, the SCLREL bit is automatically cleared, forcing the SCL output to be held low. The user's ISR must set the SCLREL bit before reception is allowed to continue. By holding the SCL line low, the user has time to service the ISR and read the contents of the I2CRCV before the master device can initiate another receive sequence. This will prevent buffer overruns from occurring. Note 1: If the user reads the contents of the I2CRCV, clearing the RBF bit before the falling edge of the ninth clock, the SCLREL bit will not be cleared and clock stretching will not occur. 2: The SCLREL bit can be set in software, regardless of the state of the RBF bit. The user should be careful to clear the RBF bit in the ISR before the next receive sequence in order to prevent an overflow condition. In Slave Transmit modes, clock stretching is always performed, irrespective of the STREN bit. Clock synchronization takes place following the ninth clock of the transmit sequence. If the device samples an ACK on the falling edge of the ninth clock, and if the TBF bit is still clear, then the SCLREL bit is automatically cleared. The SCLREL being cleared to `0' will assert the SCL line low. The user's ISR must set the SCLREL bit before transmission is allowed to continue. By holding the SCL line low, the user has time to service the ISR and load the contents of the I2CTRN before the master device can initiate another transmit sequence. Note 1: If the user loads the contents of I2CTRN, setting the TBF bit before the falling edge of the ninth clock, the SCLREL bit will not be cleared and clock stretching will not occur. 2: The SCLREL bit can be set in software, regardless of the state of the TBF bit. 17.5.2 RECEIVE CLOCK STRETCHING The STREN bit in the I2CCON register can be used to enable clock stretching in Slave Receive mode. When the STREN bit is set, the SCL pin will be held low at the end of each data receive sequence. 17.5.3 CLOCK STRETCHING DURING 7-BIT ADDRESSING (STREN = 1) When the STREN bit is set in Slave Receive mode, the SCL line is held low when the buffer register is full. The method for stretching the SCL output is the same for both 7 and 10-bit Addressing modes. DS70082G-page 118 17.5.4 CLOCK STRETCHING DURING 10-BIT ADDRESSING (STREN = 1) Clock stretching takes place automatically during the addressing sequence. Because this module has a register for the entire address, it is not necessary for the protocol to wait for the address to be updated. After the address phase is complete, clock stretching will occur on each data receive or transmit sequence as was described earlier. 17.6 Software Controlled Clock Stretching (STREN = 1) When the STREN bit is `1', the SCLREL bit may be cleared by software to allow software to control the clock stretching. The logic will synchronize writes to the SCLREL bit with the SCL clock. Clearing the SCLREL bit will not assert the SCL output until the module detects a falling edge on the SCL output and SCL is sampled low. If the SCLREL bit is cleared by the user while the SCL line has been sampled low, the SCL output will be asserted (held low). The SCL output will remain low until the SCLREL bit is set, and all other devices on the I2C bus have de-asserted SCL. This ensures that a write to the SCLREL bit will not violate the minimum high time requirement for SCL. If the STREN bit is `0', a software write to the SCLREL bit will be disregarded and have no effect on the SCLREL bit. Preliminary 2004 Microchip Technology Inc. dsPIC30F 17.7 17.12 I2C Master Operation Interrupts The I2C module generates two interrupt flags, MI2CIF (I2C Master Interrupt Flag) and SI2CIF (I2C Slave Interrupt Flag). The MI2CIF interrupt flag is activated on completion of a master message event. The SI2CIF interrupt flag is activated on detection of a message directed to the slave. 17.8 Slope Control The I2C standard requires slope control on the SDA and SCL signals for Fast Mode (400 kHz). The control bit, DISSLW, enables the user to disable slew rate control, if desired. It is necessary to disable the slew rate control for 1 MHz mode. 17.9 IPMI Support The control bit IPMIEN enables the module to support Intelligent Peripheral Management Interface (IPMI). When this bit is set, the module accepts and acts upon all addresses. 17.10 General Call Address Support The general call address can address all devices. When this address is used, all devices should, in theory, respond with an acknowledgement. The general call address is one of eight addresses reserved for specific purposes by the I2C protocol. It consists of all 0's with R_W = 0. The general call address is recognized when the General Call Enable (GCEN) bit is set (I2CCON<15> = 1). Following a Start bit detection, 8 bits are shifted into I2CRSR and the address is compared with I2CADD, and is also compared with the general call address which is fixed in hardware. If a general call address match occurs, the I2CRSR is transferred to the I2CRCV after the eighth clock, the RBF flag is set, and on the falling edge of the ninth bit (ACK bit), the master event interrupt flag (MI2CIF) is set. When the interrupt is serviced, the source for the interrupt can be checked by reading the contents of the I2CRCV to determine if the address was device specific, or a general call address. 17.11 I2C Master Support As a Master device, six operations are supported. The master device generates all of the serial clock pulses and the Start and Stop conditions. A transfer is ended with a Stop condition or with a Repeated Start condition. Since the Repeated Start condition is also the beginning of the next serial transfer, the I2C bus will not be released. In Master Transmitter mode, serial data is output through SDA, while SCL outputs the serial clock. The first byte transmitted contains the slave address of the receiving device (7 bits) and the data direction bit. In this case, the data direction bit (R_W) is logic 0. Serial data is transmitted 8 bits at a time. After each byte is transmitted, an ACK bit is received. Start and Stop conditions are output to indicate the beginning and the end of a serial transfer. In Master Receive mode, the first byte transmitted contains the slave address of the transmitting device (7 bits) and the data direction bit. In this case, the data direction bit (R_W) is logic 1. Thus, the first byte transmitted is a 7-bit slave address, followed by a `1' to indicate receive bit. Serial data is received via SDA, while SCL outputs the serial clock. Serial data is received 8 bits at a time. After each byte is received, an ACK bit is transmitted. Start and Stop conditions indicate the beginning and end of transmission. 17.12.1 I2C MASTER TRANSMISSION Transmission of a data byte, a 7-bit address, or the second half of a 10-bit address is accomplished by simply writing a value to I2CTRN register. The user should only write to I2CTRN when the module is in a WAIT state. This action will set the buffer full flag (TBF) and allow the baud rate generator to begin counting and start the next transmission. Each bit of address/data will be shifted out onto the SDA pin after the falling edge of SCL is asserted. The Transmit Status Flag, TRSTAT (I2CSTAT<14>), indicates that a master transmit is in progress. 17.12.2 I2C MASTER RECEPTION Master mode reception is enabled by programming the receive enable (RCEN) bit (I2CCON<11>). The I2C module must be Idle before the RCEN bit is set, otherwise the RCEN bit will be disregarded. The baud rate generator begins counting, and on each rollover, the state of the SCL pin toggles, and data is shifted in to the I2CRSR on the rising edge of each clock. * Assert a Start condition on SDA and SCL. * Assert a Restart condition on SDA and SCL. * Write to the I2CTRN register initiating transmission of data/address. * Generate a Stop condition on SDA and SCL. * Configure the I2C port to receive data. * Generate an ACK condition at the end of a received byte of data. 2004 Microchip Technology Inc. Preliminary DS70082G-page 119 dsPIC30F 17.12.3 BAUD RATE GENERATOR 2 In I C Master mode, the reload value for the BRG is located in the I2CBRG register. When the BRG is loaded with this value, the BRG counts down to `0' and stops until another reload has taken place. If clock arbitration is taking place, for instance, the BRG is reloaded when the SCL pin is sampled high. As per the I2C standard, FSCL may be 100 kHz or 400 kHz. However, the user can specify any baud rate up to 1 MHz. I2CBRG values of `0' or `1' are illegal. EQUATION 17-1: I2CBRG = 17.12.4 - FCY 1,111,111 ) -1 CLOCK ARBITRATION Clock arbitration occurs when the master de-asserts the SCL pin (SCL allowed to float high) during any receive, transmit, or Restart/Stop condition. When the SCL pin is allowed to float high, the baud rate generator (BRG) is suspended from counting until the SCL pin is actually sampled high. When the SCL pin is sampled high, the baud rate generator is reloaded with the contents of I2CBRG and begins counting. This ensures that the SCL high time will always be at least one BRG rollover count in the event that the clock is held low by an external device. 17.12.5 The Master will continue to monitor the SDA and SCL pins, and if a Stop condition occurs, the MI2CIF bit will be set. A write to the I2CTRN will start the transmission of data at the first data bit, regardless of where the transmitter left off when bus collision occurred. SERIAL CLOCK RATE CY ( FFSCL If a Start, Restart, Stop or Acknowledge condition was in progress when the bus collision occurred, the condition is aborted, the SDA and SCL lines are de-asserted, and the respective control bits in the I2CCON register are cleared to 0. When the user services the bus collision Interrupt Service Routine, and if the I2C bus is free, the user can resume communication by asserting a Start condition. MULTI-MASTER COMMUNICATION, BUS COLLISION, AND BUS ARBITRATION Multi-Master operation support is achieved by bus arbitration. When the master outputs address/data bits onto the SDA pin, arbitration takes place when the master outputs a 1 on SDA, by letting SDA float high while another master asserts a 0. When the SCL pin floats high, data should be stable. If the expected data on SDA is a 1 and the data sampled on the SDA pin = 0, then a bus collision has taken place. The master will set the MI2CIF pulse and reset the master portion of the I2C port to its Idle state. In a Multi-Master environment, the interrupt generation on the detection of Start and Stop conditions allows the determination of when the bus is free. Control of the I2C bus can be taken when the P bit is set in the I2CSTAT register, or the bus is Idle and the S and P bits are cleared. 17.13 I2C Module Operation During CPU Sleep and Idle Modes 17.13.1 I2C OPERATION DURING CPU SLEEP MODE When the device enters Sleep mode, all clock sources to the module are shutdown and stay at logic `0'. If Sleep occurs in the middle of a transmission, and the state machine is partially into a transmission as the clocks stop, then the transmission is aborted. Similarly, if Sleep occurs in the middle of a reception, then the reception is aborted. 17.13.2 I2C OPERATION DURING CPU IDLE MODE For the I2C, the I2CSIDL bit selects if the module will stop on Idle or continue on Idle. If I2CSIDL = 0, the module will continue operation on assertion of the Idle mode. If I2CSIDL = 1, the module will stop on Idle. If a transmit was in progress when the bus collision occurred, the transmission is halted, the TBF flag is cleared, the SDA and SCL lines are de-asserted, and a value can now be written to I2CTRN. When the user services the I2C master event Interrupt Service Routine, if the I2C bus is free (i.e., the P bit is set) the user can resume communication by asserting a Start condition. DS70082G-page 120 Preliminary 2004 Microchip Technology Inc. 0204 0206 0208 I2CBRG I2CCON I2CSTAT -- -- -- -- ACKSTAT -- -- -- -- Bit 13 -- -- -- Bit 12 -- -- -- Bit 11 DISSLW GCSTAT BCL -- -- -- -- Bit 9 A10M -- -- -- Bit 10 ADD10 SMEN -- -- Bit 8 IWCOL GCEN Bit 7 I2COV STREN Bit 6 Bit 3 Transmit Register Receive Register Bit 4 P Address Register D_A ACKEN S RCEN Baud Rate Generator Bit 5 ACKDT Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. I2CSIDL SCLREL IPMIEN -- -- -- TRSTAT -- -- -- -- -- -- -- I2CEN Bit 14 Bit 15 I2C REGISTER MAP 020A u = uninitialized bit 0202 I2CADD Legend: 0200 I2CRCV I2CTRN SFR Name Addr. TABLE 17-2: R_W PEN Bit 2 RBF RSEN Bit 1 TBF SEN Bit 0 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0001 0000 0000 0000 0000 0000 0000 0000 0000 0000 1111 1111 0000 0000 0000 0000 dsPIC30F 2004 Microchip Technology Inc. Preliminary DS70082G-page 121 dsPIC30F NOTES: DS70082G-page 122 Preliminary 2004 Microchip Technology Inc. dsPIC30F 18.0 UNIVERSAL ASYNCHRONOUS RECEIVER TRANSMITTER (UART) MODULE * One or two Stop bits * Fully integrated Baud Rate Generator with 16-bit prescaler * Baud rates range from 38 bps to 1.875 Mbps at a 30 MHz instruction rate * 4-word deep transmit data buffer * 4-word deep receive data buffer * Parity, Framing and Buffer Overrun error detection * Support for Interrupt only on Address Detect (9th bit = 1) * Separate Transmit and Receive Interrupts * Loopback mode for diagnostic support Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). This section describes the Universal Asynchronous Receiver/Transmitter Communications module. 18.1 UART Module Overview The key features of the UART module are: * Full-duplex, 8 or 9-bit data communication * Even, Odd or No Parity options (for 8-bit data) FIGURE 18-1: UART TRANSMITTER BLOCK DIAGRAM Internal Data Bus Control and Status bits Write UTX8 Write UxTXREG Low Byte Transmit Control - Control TSR - Control Buffer - Generate Flags - Generate Interrupt Load TSR UxTXIF UTXBRK Data UxTX Transmit Shift Register (UxTSR) `0' (Start) `1' (Stop) Parity Parity Generator 16 Divider 16X Baud Clock from Baud Rate Generator Control Signals Note: x = 1 or 2. 2004 Microchip Technology Inc. Preliminary DS70082G-page 123 dsPIC30F FIGURE 18-2: UART RECEIVER BLOCK DIAGRAM Internal Data Bus 16 Write Read Read Read UxMODE URX8 Write UxSTA UxRXREG Low Byte Receive Buffer Control - Generate Flags - Generate Interrupt - Shift Data Characters Load RSR to Buffer Receive Shift Register (UxRSR) 0 * START bit Detect * Parity Check * Stop bit Detect * Shift Clock Generation * Wake Logic Control Signals FERR UxRX 1 8-9 PERR LPBACK From UxTX 16 Divider 16X Baud Clock from Baud Rate Generator UxRXIF DS70082G-page 124 Preliminary 2004 Microchip Technology Inc. dsPIC30F 18.2 18.2.1 Enabling and Setting Up UART 18.3 ENABLING THE UART 18.3.1 The UART module is enabled by setting the UARTEN bit in the UxMODE register (where x = 1 or 2). Once enabled, the UxTX and UxRX pins are configured as an output and an input respectively, overriding the TRIS and LATCH register bit settings for the corresponding I/O port pins. The UxTX pin is at logic `1' when no transmission is taking place. 18.2.2 1. 2. 3. Disabling the UART module resets the buffers to empty states. Any data characters in the buffers are lost, and the baud rate counter is reset. All error and status flags associated with the UART module are reset when the module is disabled. The URXDA, OERR, FERR, PERR, UTXEN, UTXBRK and UTXBF bits are cleared, whereas RIDLE and TRMT are set. Other control bits, including ADDEN, URXISEL<1:0>, UTXISEL, as well as the UxMODE and UxBRG registers, are not affected. Clearing the UARTEN bit while the UART is active will abort all pending transmissions and receptions and reset the module as defined above. Re-enabling the UART will restart the UART in the same configuration. 18.2.4 SETTING UP DATA, PARITY AND STOP BIT SELECTIONS Control bits PDSEL<1:0> in the UxMODE register are used to select the data length and parity used in the transmission. The data length may either be 8-bits with even, odd or no parity, or 9-bits with no parity. The STSEL bit determines whether one or two Stop bits will be used during data transmission. The default (Power-on) setting of the UART is 8 bits, no parity, 1 Stop bit (typically represented as 8, N, 1). Set up the UART: First, the data length, parity and number of Stop bits must be selected. Then, the Transmit and Receive Interrupt enable and priority bits are setup in the UxMODE and UxSTA registers. Also, the appropriate baud rate value must be written to the UxBRG register. Enable the UART by setting the UARTEN bit (UxMODE<15>). Set the UTXEN bit (UxSTA<10>), thereby enabling a transmission. Note: 4. 5. ALTERNATE I/O The alternate I/O function is enabled by setting the ALTIO bit (UxMODE<10>). If ALTIO = 1, the UxATX and UxARX pins (alternate transmit and alternate receive pins, respectively) are used by the UART module instead of the UxTX and UxRX pins. If ALTIO = 0, the UxTX and UxRX pins are used by the UART module. TRANSMITTING IN 8-BIT DATA MODE The following steps must be performed in order to transmit 8-bit data: DISABLING THE UART The UART module is disabled by clearing the UARTEN bit in the UxMODE register. This is the default state after any Reset. If the UART is disabled, all I/O pins operate as port pins under the control of the latch and TRIS bits of the corresponding port pins. 18.2.3 Transmitting Data The UTXEN bit must be set after the UARTEN bit is set to enable UART transmissions. Write the byte to be transmitted to the lower byte of UxTXREG. The value will be transferred to the Transmit Shift register (UxTSR) immediately and the serial bit stream will start shifting out during the next rising edge of the baud clock. Alternatively, the data byte may be written while UTXEN = 0, following which, the user may set UTXEN. This will cause the serial bit stream to begin immediately because the baud clock will start from a cleared state. A Transmit interrupt will be generated depending on the value of the interrupt control bit UTXISEL (UxSTA<15>). 18.3.2 TRANSMITTING IN 9-BIT DATA MODE The sequence of steps involved in the transmission of 9-bit data is similar to 8-bit transmission, except that a 16-bit data word (of which the upper 7 bits are always clear) must be written to the UxTXREG register. 18.3.3 TRANSMIT BUFFER (UXTXB) The transmit buffer is 9-bits wide and 4 characters deep. Including the Transmit Shift Register (UxTSR), the user effectively has a 5-deep FIFO (First In First Out) buffer. The UTXBF status bit (UxSTA<9>) indicates whether the transmit buffer is full. If a user attempts to write to a full buffer, the new data will not be accepted into the FIFO, and no data shift will occur within the buffer. This enables recovery from a buffer overrun condition. The FIFO is reset during any device Reset, but is not affected when the device enters or wakes up from a Power Saving mode. 2004 Microchip Technology Inc. Preliminary DS70082G-page 125 dsPIC30F 18.3.4 TRANSMIT INTERRUPT 18.4.2 The transmit interrupt flag (U1TXIF or U2TXIF) is located in the corresponding interrupt flag register. The transmitter generates an edge to set the UxTXIF bit. The condition for generating the interrupt depends on UTXISEL control bit: a) b) If UTXISEL = 0, an interrupt is generated when a word is transferred from the Transmit buffer to the Transmit Shift register (UxTSR). This implies that the transmit buffer has at least one empty word. If UTXISEL = 1, an interrupt is generated when a word is transferred from the Transmit buffer to the Transmit Shift register (UxTSR) and the Transmit buffer is empty. Switching between the two interrupt modes during operation is possible and sometimes offers more flexibility. 18.3.5 TRANSMIT BREAK RECEIVE BUFFER (UXRXB) The receive buffer is 4 words deep. Including the Receive Shift register (UxRSR), the user effectively has a 5-word deep FIFO buffer. URXDA (UxSTA<0>) = 1 indicates that the receive buffer has data available. URXDA = 0 implies that the buffer is empty. If a user attempts to read an empty buffer, the old values in the buffer will be read and no data shift will occur within the FIFO. The FIFO is reset during any device Reset. It is not affected when the device enters or wakes up from a Power Saving mode. 18.4.3 RECEIVE INTERRUPT The receive interrupt flag (U1RXIF or U2RXIF) can be read from the corresponding interrupt flag register. The interrupt flag is set by an edge generated by the receiver. The condition for setting the receive interrupt flag depends on the settings specified by the URXISEL<1:0> (UxSTA<7:6>) control bits. Setting the UTXBRK bit (UxSTA<11>) will cause the UxTX line to be driven to logic `0'. The UTXBRK bit overrides all transmission activity. Therefore, the user should generally wait for the transmitter to be Idle before setting UTXBRK. a) To send a break character, the UTXBRK bit must be set by software and must remain set for a minimum of 13 baud clock cycles. The UTXBRK bit is then cleared by software to generate Stop bits. The user must wait for a duration of at least one or two baud clock cycles in order to ensure a valid Stop bit(s) before reloading the UxTXB or starting other transmitter activity. Transmission of a break character does not generate a transmit interrupt. b) 18.4 Switching between the Interrupt modes during operation is possible, though generally not advisable during normal operation. 18.4.1 Receiving Data RECEIVING IN 8-BIT OR 9-BIT DATA MODE The following steps must be performed while receiving 8-bit or 9-bit data: 1. 2. 3. 4. 5. Set up the UART (see Section 18.3.1). Enable the UART (see Section 18.3.1). A receive interrupt will be generated when one or more data words have been received, depending on the receive interrupt settings specified by the URXISEL bits (UxSTA<7:6>). Read the OERR bit to determine if an overrun error has occurred. The OERR bit must be reset in software. Read the received data from UxRXREG. The act of reading UxRXREG will move the next word to the top of the receive FIFO, and the PERR and FERR values will be updated. DS70082G-page 126 c) If URXISEL<1:0> = 00 or 01, an interrupt is generated every time a data word is transferred from the Receive Shift Register (UxRSR) to the Receive Buffer. There may be one or more characters in the receive buffer. If URXISEL<1:0> = 10, an interrupt is generated when a word is transferred from the Receive Shift Register (UxRSR) to the Receive Buffer, which, as a result of the transfer, contains 3 characters. If URXISEL<1:0> = 11, an interrupt is set when a word is transferred from the Receive Shift Register (UxRSR) to the Receive Buffer, which, as a result of the transfer, contains 4 characters (i.e., becomes full). 18.5 18.5.1 Reception Error Handling RECEIVE BUFFER OVERRUN ERROR (OERR BIT) The OERR bit (UxSTA<1>) is set if all of the following conditions occur: a) b) c) The receive buffer is full. The receive shift register is full, but unable to transfer the character to the receive buffer. The Stop bit of the character in the UxRSR is detected, indicating that the UxRSR needs to transfer the character to the buffer. Once OERR is set, no further data is shifted in UxRSR (until the OERR bit is cleared in software or a Reset occurs). The data held in UxRSR and UxRXREG remains valid. Preliminary 2004 Microchip Technology Inc. dsPIC30F 18.5.2 FRAMING ERROR (FERR) 18.6 The FERR bit (UxSTA<2>) is set if a `0' is detected instead of a Stop bit. If two Stop bits are selected, both Stop bits must be `1', otherwise FERR will be set. The read only FERR bit is buffered along with the received data. It is cleared on any Reset. 18.5.3 PARITY ERROR (PERR) The PERR bit (UxSTA<3>) is set if the parity of the received word is incorrect. This error bit is applicable only if a Parity mode (odd or even) is selected. The read only PERR bit is buffered along with the received data bytes. It is cleared on any Reset. 18.5.4 IDLE STATUS When the receiver is active (i.e., between the initial detection of the Start bit and the completion of the Stop bit), the RIDLE bit (UxSTA<4>) is `0'. Between the completion of the Stop bit and detection of the next Start bit, the RIDLE bit is `1', indicating that the UART is Idle. 18.5.5 RECEIVE BREAK The receiver will count and expect a certain number of bit times based on the values programmed in the PDSEL (UxMODE<2:1>) and STSEL (UxMODE<0>) bits. If the break is longer than 13 bit times, the reception is considered complete after the number of bit times specified by PDSEL and STSEL. The URXDA bit is set, FERR is set, zeros are loaded into the receive FIFO, interrupts are generated, if appropriate and the RIDLE bit is set. When the module receives a long break signal and the receiver has detected the Start bit, the data bits and the invalid Stop bit (which sets the FERR), the receiver must wait for a valid Stop bit before looking for the next Start bit. It cannot assume that the break condition on the line is the next Start bit. Break is regarded as a character containing all 0's, with the FERR bit set. The break character is loaded into the buffer. No further reception can occur until a Stop bit is received. Note that RIDLE goes high when the Stop bit has not been received yet. Address Detect Mode Setting the ADDEN bit (UxSTA<5>) enables this special mode, in which a 9th bit (URX8) value of `1' identifies the received word as an address rather than data. This mode is only applicable for 9-bit data communication. The URXISEL control bit does not have any impact on interrupt generation in this mode, since an interrupt (if enabled) will be generated every time the received word has the 9th bit set. 18.7 Loopback Mode Setting the LPBACK bit enables this special mode in which the UxTX pin is internally connected to the UxRX pin. When configured for the loopback mode, the UxRX pin is disconnected from the internal UART receive logic. However, the UxTX pin still functions as in a normal operation. To select this mode: a) b) c) Configure UART for desired mode of operation. Set LPBACK = 1 to enable Loopback mode. Enable transmission as defined in Section 18.3. 18.8 Baud Rate Generator The UART has a 16-bit baud rate generator to allow maximum flexibility in baud rate generation. The baud rate generator register (UxBRG) is readable and writable. The baud rate is computed as follows: BRG = 16-bit value held in UxBRG register (0 through 65535) FCY = Instruction Clock Rate (1/TCY) The Baud Rate is given by Equation 18-1. EQUATION 18-1: BAUD RATE Baud Rate = FCY / (16*(BRG+1)) Therefore, maximum baud rate possible is FCY /16 (if BRG = 0), and the minimum baud rate possible is FCY / (16* 65536). With a full 16-bit baud rate generator, at 30 MIPs operation, the minimum baud rate achievable is 28.5 bps. 2004 Microchip Technology Inc. Preliminary DS70082G-page 127 dsPIC30F 18.9 18.10.2 Auto Baud Support To allow the system to determine baud rates of received characters, the input can be optionally linked to a selected capture input. To enable this mode, the user must program the input capture module to detect the falling and rising edges of the Start bit. For most device variants, the IC1 capture channel is used to detect the baud rate for UART1. The IC2 capture channel is used for UART2. Refer to the specific device data sheet for details. UART OPERATION DURING CPU IDLE MODE For the UART, the USIDL bit selects if the module will stop operation when the device enters Idle mode, or whether the module will continue on Idle. If USIDL = 0, the module will continue operation during Idle mode. If USIDL = 1, the module will stop on Idle. 18.10 UART Operation During CPU Sleep and Idle Modes 18.10.1 UART OPERATION DURING CPU SLEEP MODE When the device enters Sleep mode, all clock sources to the module are shutdown and stay at logic `0'. If entry into Sleep mode occurs while a transmission is in progress, then the transmission is aborted. The UxTX pin is driven to logic `1'. Similarly, if entry into Sleep mode occurs while a reception is in progress, then the reception is aborted. The UxSTA, UxMODE, transmit and receive registers and buffers, and the UxBRG register are not affected by Sleep mode. If the Wake bit (UxSTA<7>) is set before the device enters Sleep mode, then a falling edge on the UxRX pin will generate a receive interrupt. The Receive Interrupt Select mode bit (URXISEL) has no effect for this function. If the receive interrupt is enabled, then this will wake-up the device from Sleep. The UARTEN bit must be set in order to generate a wake-up interrupt. DS70082G-page 128 Preliminary 2004 Microchip Technology Inc. 0210 0212 U1TXREG U1RXREG UARTEN -- -- 2004 Microchip Technology Inc. -- -- 021A 021C -- -- -- -- -- -- -- Bit 12 ALTIO Bit 10 -- Bit 10 -- -- -- -- -- -- UTXBRK UTXEN -- Bit 11 -- -- UTXBRK UTXEN -- Bit 11 -- -- UTXBF -- Bit 9 -- -- URX8 UTX8 TRMT -- Bit 8 LPBACK Bit 6 LPBACK Bit 6 ABAUD Bit 5 PERR -- Bit 3 RIDLE -- Bit 4 PERR -- Bit 3 Receive Register Transmit Register RIDLE -- Bit 4 Receive Register Transmit Register URXISEL1 URXISEL0 ADDEN WAKE Bit 7 Baud Rate Generator Prescaler URX8 UTX8 TRMT -- Bit 8 ABAUD Bit 5 URXISEL1 URXISEL0 ADDEN WAKE Bit 7 Baud Rate Generator Prescaler UTXBF -- Bit 9 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. 021E u = uninitialized bit -- -- -- U2TXREG USIDL -- U2RXREG UARTEN UTXISEL 0216 0218 U2MODE Bit 13 Bit 14 U2STA Bit 15 Addr. U2BRG Legend: -- -- -- -- Bit 12 UART2 REGISTER MAP SFR Name TABLE 18-2: -- -- -- -- -- USIDL -- -- UTXISEL 0214 u = uninitialized bit 020E U1BRG Legend: 020C U1MODE U1STA Bit 13 Bit 15 SFR Name Addr. Bit 14 UART1 REGISTER MAP TABLE 18-1: Bit 1 Bit 0 Reset State Bit 1 OERR FERR OERR PDSEL1 PDSEL0 Bit 2 FERR Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 000u uuuu uuuu URXDA 0000 0001 0001 0000 STSEL 0000 0000 0000 0000 Bit 0 0000 0000 0000 0000 0000 0000 0000 0000 0000 000u uuuu uuuu URXDA 0000 0001 0001 0000 PDSEL1 PDSEL0 STSEL 0000 0000 0000 0000 Bit 2 dsPIC30F Preliminary DS70082G-page 129 dsPIC30F NOTES: DS70082G-page 130 Preliminary 2004 Microchip Technology Inc. dsPIC30F 19.0 CAN MODULE Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). 19.1 Overview The Controller Area Network (CAN) module is a serial interface, useful for communicating with other CAN modules or microcontroller devices. This interface/ protocol was designed to allow communications within noisy environments. The CAN module is a communication controller implementing the CAN 2.0 A/B protocol, as defined in the BOSCH specification. The module will support CAN 1.2, CAN 2.0A, CAN2.0B Passive and CAN 2.0B Active versions of the protocol. The module implementation is a full CAN system. The CAN specification is not covered within this data sheet. The reader may refer to the BOSCH CAN specification for further details. The module features are as follows: * Implementation of the CAN protocol CAN 1.2, CAN 2.0A and CAN 2.0B * Standard and extended data frames * 0-8 bytes data length * Programmable bit rate up to 1 Mbit/sec * Support for remote frames * Double buffered receiver with two prioritized received message storage buffers (each buffer may contain up to 8 bytes of data) * 6 full (standard/extended identifier) acceptance filters, 2 associated with the high priority receive buffer, and 4 associated with the low priority receive buffer * 2 full acceptance filter masks, one each associated with the high and low priority receive buffers * Three transmit buffers with application specified prioritization and abort capability (each buffer may contain up to 8 bytes of data) * Programmable wake-up functionality with integrated low pass filter * Programmable Loopback mode supports self-test operation * Signaling via interrupt capabilities for all CAN receiver and transmitter error states * Programmable clock source * Programmable link to Input Capture #2 (IC2) module for time-stamping and network synchronization * Low power Sleep and Idle mode 2004 Microchip Technology Inc. The CAN bus module consists of a protocol engine, and message buffering/control. The CAN protocol engine handles all functions for receiving and transmitting messages on the CAN bus. Messages are transmitted by first loading the appropriate data registers. Status and errors can be checked by reading the appropriate registers. Any message detected on the CAN bus is checked for errors and then matched against filters to see if it should be received and stored in one of the receive registers. 19.2 Frame Types The CAN module transmits various types of frames, which include data messages or remote transmission Requests initiated by the user as other frames that are automatically generated for control purposes. The following frame types are supported: * Standard Data Frame A Standard Data Frame is generated by a node when the node wishes to transmit data. It includes a 11-bit Standard Identifier (SID) but not an 18-bit Extended Identifier (EID). * Extended Data Frame An Extended Data Frame is similar to a Standard Data Frame, but includes an Extended Identifier as well. * Remote Frame It is possible for a destination node to request the data from the source. For this purpose, the destination node sends a Remote Frame with an identifier that matches the identifier of the required Data Frame. The appropriate data source node will then send a Data Frame as a response to this Remote request. * Error Frame An Error Frame is generated by any node that detects a bus error. An error frame consists of 2 fields: an Error Flag field and an Error Delimiter field. * Overload Frame An Overload Frame can be generated by a node as a result of 2 conditions. First, the node detects a dominant bit during lnterframe Space which is an illegal condition. Second, due to internal conditions, the node is not yet able to start reception of the next message. A node may generate a maximum of 2 sequential Overload Frames to delay the start of the next message. * Interframe Space Interframe Space separates a proceeding frame (of whatever type) from a following Data or Remote Frame. Preliminary DS70082G-page 131 dsPIC30F FIGURE 19-1: CAN BUFFERS AND PROTOCOL ENGINE BLOCK DIAGRAM Acceptance Mask RXM1 BUFFERS Acceptance Filter RXF2 Message Queue Control MESSAGE MSGREQ TXABT TXLARB TXERR MTXBUFF TXB2 MESSAGE MSGREQ TXABT TXLARB TXERR MTXBUFF TXB1 MESSAGE MSGREQ TXABT TXLARB TXERR MTXBUFF TXB0 A c c e p t Acceptance Mask RXM0 Acceptance Filter RXF3 Acceptance Filter RXF0 Acceptance Filter RXF4 Acceptance Filter RXF1 Acceptance Filter RXF5 R X B 0 Identifier M A B Data Field Transmit Byte Sequencer Data Field PROTOCOL ENGINE RERRCNT TERRCNT Transmit Error Counter CRC Generator R X B 1 Identifier Receive Error Counter Transmit Shift A c c e p t ErrPas BusOff Receive Shift Protocol Finite State Machine CRC Check Transmit Logic Bit Timing Logic CiTX(1) CiRX(1) Bit Timing Generator Note 1: i = 1 or 2 refers to a particular CAN module (CAN1 or CAN2). DS70082G-page 132 Preliminary 2004 Microchip Technology Inc. dsPIC30F 19.3 Modes of Operation The CAN Module can operate in one of several operation modes selected by the user. These modes include: * * * * * * Initialization Mode Disable Mode Normal Operation Mode Listen Only Mode Loop Back Mode Error Recognition Mode Note: Modes are requested by setting the REQOP<2:0> bits (CiCTRL<10:8>), except the Error Recognition Mode which is requested through the RXM<1:0> bits (CiRXnCON<6:5>, where n = 0 or 1 represents a particular receive buffer). Entry into a mode is acknowledged by monitoring the OPMODE<2:0> bits (CiCTRL<7:5>). The module will not change the mode and the OPMODE bits until a change in mode is acceptable, generally during bus idle time which is defined as at least 11 consecutive recessive bits. 19.3.1 INITIALIZATION MODE In the Initialization mode, the module will not transmit or receive. The error counters are cleared and the interrupt flags remain unchanged. The programmer will have access to configuration registers that are access restricted in other modes. The module will protect the user from accidentally violating the CAN protocol through programming errors. All registers which control the configuration of the module can not be modified while the module is on-line. The CAN module will not be allowed to enter the configuration mode while a transmission is taking place. The Configuration mode serves as a lock to protect the following registers. * * * * * All Module Control Registers Baud Rate and interrupt Configuration Registers Bus Timing Registers Identifier Acceptance Filter Registers Identifier Acceptance Mask Registers 19.3.2 The module can be programmed to apply a low-pass filter function to the CiRX input line while the module or the CPU is in Sleep mode. The WAKFIL bit (CiCFG2<14>) enables or disables the filter. 19.3.3 Typically, if the CAN module is allowed to transmit in a particular mode of operation and a transmission is requested immediately after the CAN module has been placed in that mode of operation, the module waits for 11 consecutive recessive bits on the bus before starting transmission. If the user switches to Disable Mode within this 11-bit period, then this transmission is aborted and the corresponding TXABT bit is set and TXREQ bit is cleared. NORMAL OPERATION MODE Normal operating mode is selected when REQOP<2:0> = `000'. In this mode, the module is activated, the I/O pins will assume the CAN bus functions. The module will transmit and receive CAN bus messages via the CxTX and CxRX pins. 19.3.4 LISTEN ONLY MODE If the listen only mode is activated, the module on the CAN bus is passive. The transmitter buffers revert to the Port I/O function. The receive pins remain inputs. For the receiver, no error flags or acknowledge signals are sent. The error counters are deactivated in this state. The listen only mode can be used for detecting the baud rate on the CAN bus. To use this, it is necessary that there are at least two further nodes that communicate with each other. 19.3.5 LISTEN ALL MESSAGES MODE The module can be set to ignore all errors and receive any message. The error recognition mode is activated by setting REQOP<2:0> = 111. In this mode the data which is in the message assembly buffer until the time an error occurred, is copied in the receive buffer and can be read via the CPU interface. DISABLE MODE In Disable Mode, the module will not transmit or receive. The module has the ability to set the WAKIF bit due to bus activity, however any pending interrupts will remain and the error counters will retain their value. If the REQOP<2:0> bits (CiCTRL<10:8>) = `001', the module will enter the module disable mode. If the module is active, the module will wait for 11 recessive bits on the CAN bus, detect that condition as an idle bus, then accept the module disable command. When the OPMODE<2:0> bits (CiCTRL<7:5>) = `001', that indicates whether the module successfully went into module disable mode. The I/O pins will revert to normal I/O function when the module is in the module disable mode. 2004 Microchip Technology Inc. 19.3.6 LOOP BACK MODE If the loopback mode is activated, the module will connect the internal transmit signal to the internal receive signal at the module boundary. The transmit and receive pins revert to their Port I/O function. Preliminary DS70082G-page 133 dsPIC30F 19.4 19.4.1 Message Reception 19.4.3 RECEIVE BUFFERS The CAN bus module has 3 receive buffers. However, one of the receive buffers is always committed to monitoring the bus for incoming messages. This buffer is called the message assembly buffer (MAB). So there are 2 receive buffers visible, RXB0 and RXB1, that can essentially instantaneously receive a complete message from the protocol engine. All messages are assembled by the MAB, and are transferred to the RXBn buffers only if the acceptance filter criterion are met. When a message is received, the RXnIF flag (CiINTF<0> or CiINRF<1>) will be set. This bit can only be set by the module when a message is received. The bit is cleared by the CPU when it has completed processing the message in the buffer. If the RXnIE bit (CiINTE<0> or CiINTE<1>) is set, an interrupt will be generated when a message is received. RXF0 and RXF1 filters with RXM0 mask are associated with RXB0. The filters RXF2, RXF3, RXF4, and RXF5 and the mask RXM1 are associated with RXB1. 19.4.2 MESSAGE ACCEPTANCE FILTERS The message acceptance filters and masks are used to determine if a message in the message assembly buffer should be loaded into either of the receive buffers. Once a valid message has been received into the Message Assembly Buffer (MAB), the identifier fields of the message are compared to the filter values. If there is a match, that message will be loaded into the appropriate receive buffer. The acceptance filter looks at incoming messages for the RXIDE bit (CiRXnSID<0>) to determine how to compare the identifiers. If the RXIDE bit is clear, the message is a standard frame, and only filters with the EXIDE bit (CiRXFnSID<0>) clear are compared. If the RXIDE bit is set, the message is an extended frame, and only filters with the EXIDE bit set are compared. Configuring the RXM<1:0> bits to 01 or 10 can override the EXIDE bit. DS70082G-page 134 MESSAGE ACCEPTANCE FILTER MASKS The mask bits essentially determine which bits to apply the filter to. If any mask bit is set to a zero, then that bit will automatically be accepted regardless of the filter bit. There are 2 programmable acceptance filter masks associated with the receive buffers, one for each buffer. 19.4.4 RECEIVE OVERRUN An overrun condition occurs when the Message Assembly Buffer (MAB) has assembled a valid received message, the message is accepted through the acceptance filters, and when the receive buffer associated with the filter has not been designated as clear of the previous message. The overrun error flag, RXnOVR (CiINTF<15> or CiINTF<14>) and the ERRIF bit (CiINTF<5>) will be set and the message in the MAB will be discarded. If the DBEN bit is clear, RXB1 and RXB0 operate independently. When this is the case, a message intended for RXB0 will not be diverted into RXB1 if RXB0 contains an unread message and the RX0OVR bit will be set. If the DBEN bit is set, the overrun for RXB0 is handled differently. If a valid message is received for RXB0 and RXFUL = 1 indicates that RXB0 is full, and RXFUL = 0 indicates that RXB1 is empty, the message for RXB0 will be loaded into RXB1. An overrun error will not be generated for RXB0. If a valid message is received for RXB0 and RXFUL = 1, and RXFUL = 1 indicating that both RXB0 and RXB1 are full, the message will be lost and an overrun will be indicated for RXB1. 19.4.5 RECEIVE ERRORS The CAN module will detect the following receive errors: * Cyclic Redundancy Check (CRC) Error * Bit Stuffing Error * Invalid message receive error These receive errors do not generate an interrupt. However, the receive error counter is incremented by one in case one of these errors occur. The RXWAR bit (CiINTF<9>) indicates that the Receive Error Counter has reached the CPU warning limit of 96 and an interrupt is generated. Preliminary 2004 Microchip Technology Inc. dsPIC30F 19.4.6 RECEIVE INTERRUPTS 19.5.3 Receive interrupts can be divided into 3 major groups, each including various conditions that generate interrupts: * Receive Interrupt A message has been successfully received and loaded into one of the receive buffers. This interrupt is activated immediately after receiving the End-of-Frame (EOF) field. Reading the RXnIF flag will indicate which receive buffer caused the interrupt. * Wake-up interrupt The CAN module has woken up from Disable Mode or the device has woken up from Sleep mode. * Receive Error Interrupts A receive error interrupt will be indicated by the ERRIF bit. This bit shows that an error condition occurred. The source of the error can be determined by checking the bits in the CAN Interrupt Status Register CiINTF. * Invalid message received * If any type of error occurred during reception of the last message, an error will be indicated by the IVRIF bit. * Receiver overrun * The RXnOVR bit indicates that an overrun condition occurred. * Receiver warning * The RXWAR bit indicates that the Receive Error Counter (RERRCNT<7:0>) has reached the Warning limit of 96. * Receiver error passive * The RXEP bit indicates that the Receive Error Counter has exceeded the Error Passive limit of 127 and the module has gone into Error Passive state. 19.5 19.5.1 Message Transmission The CAN module has three transmit buffers. Each of the three buffers occupies 14 bytes of data. Eight of the bytes are the maximum 8 bytes of the transmitted message. Five bytes hold the standard and extended identifiers and other message arbitration information. 19.5.2 TRANSMIT MESSAGE PRIORITY Transmit priority is a prioritization within each node of the pending transmittable messages. There are 4 levels of transmit priority. If TXPRI<1:0> (CiTXnCON<1:0>, where n = 0, 1 or 2 represents a particular transmit buffer) for a particular message buffer is set to `11', that buffer has the highest priority. If TXPRI<1:0> for a particular message buffer is set to `10' or `01', that buffer has an intermediate priority. If TXPRI<1:0> for a particular message buffer is `00', that buffer has the lowest priority. 2004 Microchip Technology Inc. To initiate transmission of the message, the TXREQ bit (CiTXnCON<3>) must be set. The CAN bus module resolves any timing conflicts between setting of the TXREQ bit and the Start of Frame (SOF), ensuring that if the priority was changed, it is resolved correctly before the SOF occurs. When TXREQ is set, the TXABT (CiTXnCON<6>), TXLARB (CiTXnCON<5>) and TXERR (CiTXnCON<4>) flag bits are automatically cleared. Setting TXREQ bit simply flags a message buffer as enqueued for transmission. When the module detects an available bus, it begins transmitting the message which has been determined to have the highest priority. If the transmission completes successfully on the first attempt, the TXREQ bit is cleared automatically and an interrupt is generated if TXIE was set. If the message transmission fails, one of the error condition flags will be set and the TXREQ bit will remain set indicating that the message is still pending for transmission. If the message encountered an error condition during the transmission attempt, the TXERR bit will be set and the error condition may cause an interrupt. If the message loses arbitration during the transmission attempt, the TXLARB bit is set. No interrupt is generated to signal the loss of arbitration. 19.5.4 ABORTING MESSAGE TRANSMISSION The system can also abort a message by clearing the TXREQ bit associated with each message buffer. Setting the ABAT bit (CiCTRL<12>) will request an abort of all pending messages. If the message has not yet started transmission, or if the message started but is interrupted by loss of arbitration or an error, the abort will be processed. The abort is indicated when the module sets the TXABT bit, and the TXnIF flag is not automatically set. 19.5.5 TRANSMIT BUFFERS TRANSMISSION SEQUENCE TRANSMISSION ERRORS The CAN module will detect the following transmission errors: * Acknowledge Error * Form Error * Bit Error These transmission errors will not necessarily generate an interrupt but are indicated by the transmission error counter. However, each of these errors will cause the transmission error counter to be incremented by one. Once the value of the error counter exceeds the value of 96, the ERRIF (CiINTF<5>) and the TXWAR bit (CiINTF<10>) are set. Once the value of the error counter exceeds the value of 96, an interrupt is generated and the TXWAR bit in the error flag register is set. Preliminary DS70082G-page 135 dsPIC30F 19.5.6 19.6 TRANSMIT INTERRUPTS Baud Rate Setting Transmit interrupts can be divided into 2 major groups, each including various conditions that generate interrupts: All nodes on any particular CAN bus must have the same nominal bit rate. In order to set the baud rate, the following parameters have to be initialized: * Transmit Interrupt * * * * * * At least one of the three transmit buffers is empty (not scheduled) and can be loaded to schedule a message for transmission. Reading the TXnIF flags will indicate which transmit buffer is available and caused the interrupt. * Transmit Error Interrupts A transmission error interrupt will be indicated by the ERRIF flag. This flag shows that an error condition occurred. The source of the error can be determined by checking the error flags in the CAN Interrupt Status register, CiINTF. The flags in this register are related to receive and transmit errors. * Transmitter Warning Interrupt * The TXWAR bit indicates that the Transmit Error Counter has reached the CPU warning limit of 96. * Transmitter Error Passive * The TXEP bit (CiINTF<12>) indicates that the Transmit Error Counter has exceeded the Error Passive limit of 127 and the module has gone to Error Passive state. * Bus Off * The TXBO bit (CiINTF<13>) indicates that the Transmit Error Counter has exceeded 255 and the module has gone to Bus Off state. FIGURE 19-2: Synchronization Jump Width Baud rate prescaler Phase segments Length determination of Phase2 Seg Sample Point Propagation segment bits 19.6.1 BIT TIMING All controllers on the CAN bus must have the same baud rate and bit length. However, different controllers are not required to have the same master oscillator clock. At different clock frequencies of the individual controllers, the baud rate has to be adjusted by adjusting the number of time quanta in each segment. The Nominal Bit Time can be thought of as being divided into separate non-overlapping time segments. These segments are shown in Figure 19-2. * * * * Synchronization segment (Sync Seg) Propagation time segment (Prop Seg) Phase segment 1 (Phase1 Seg) Phase segment 2 (Phase2 Seg) The time segments and also the nominal bit time are made up of integer units of time called time quanta or TQ. By definition, the Nominal Bit Time has a minimum of 8 TQ and a maximum of 25 TQ. Also, by definition, the minimum nominal bit time is 1 sec, corresponding to a maximum bit rate of 1 MHz. CAN BIT TIMING Input Signal Sync Prop Segment Phase Segment 1 Phase Segment 2 Sync Sample Point TQ DS70082G-page 136 Preliminary 2004 Microchip Technology Inc. dsPIC30F 19.6.2 PRESCALER SETTING 19.6.5 There is a programmable prescaler, with integral values ranging from 1 to 64, in addition to a fixed divideby-2 for clock generation. The Time Quantum (TQ) is a fixed unit of time derived from the oscillator period, and is given by Equation 19-1, where FCAN is FCY (if the CANCKS bit is set or 4 FCY (if CANCKS is cleared). Note: FCAN must not exceed 30 MHz. If CANCKS = 0, then FCY must not exceed 7.5 MHz. EQUATION 19-1: TIME QUANTUM FOR CLOCK GENERATION 19.6.6 PROPAGATION SEGMENT This part of the bit time is used to compensate physical delay times within the network. These delay times consist of the signal propagation time on the bus line and the internal delay time of the nodes. The Propagation Segment can be programmed from 1 TQ to 8 TQ by setting the PRSEG<2:0> bits (CiCFG2<2:0>). 19.6.4 The Sample Point is the point of time at which the bus level is read and interpreted as the value of that respective bit. The location is at the end of Phase1 Seg. If the bit timing is slow and contains many TQ, it is possible to specify multiple sampling of the bus line at the sample point. The level determined by the CAN bus then corresponds to the result from the majority decision of three values. The majority samples are taken at the sample point and twice before with a distance of TQ/2. The CAN module allows the user to chose between sampling three times at the same point or once at the same point, by setting or clearing the SAM bit (CiCFG2<6>). Typically, the sampling of the bit should take place at about 60-70% through the bit time, depending on the system parameters. TQ = 2 ( BRP<5:0> + 1 ) / FCAN 19.6.3 SAMPLE POINT PHASE SEGMENTS The phase segments are used to optimally locate the sampling of the received bit within the transmitted bit time. The sampling point is between Phase1 Seg and Phase2 Seg. These segments are lengthened or shortened by re-synchronization. The end of the Phase1 Seg determines the sampling point within a bit period. The segment is programmable from 1 TQ to 8 TQ. Phase2 Seg provides delay to the next transmitted data transition. The segment is programmable from 1 TQ to 8 TQ, or it may be defined to be equal to the greater of Phase1 Seg or the Information Processing Time (2 TQ). The Phase1 Seg is initialized by setting bits SEG1PH<2:0> (CiCFG2<5:3>), and Phase2 Seg is initialized by setting SEG2PH<2:0> (CiCFG2<10:8>). The following requirement must be fulfilled while setting the lengths of the Phase Segments: * Propagation Segment + Phase1 Seg > = Phase2 Seg SYNCHRONIZATION To compensate for phase shifts between the oscillator frequencies of the different bus stations, each CAN controller must be able to synchronize to the relevant signal edge of the incoming signal. When an edge in the transmitted data is detected, the logic will compare the location of the edge to the expected time (Synchronous Segment). The circuit will then adjust the values of Phase1 Seg and Phase2 Seg. There are 2 mechanisms used to synchronize. 19.6.6.1 Hard Synchronization Hard Synchronization is only done whenever there is a 'recessive' to 'dominant' edge during Bus Idle, indicating the start of a message. After hard synchronization, the bit time counters are restarted with the Synchronous Segment. Hard synchronization forces the edge which has caused the hard synchronization to lie within the synchronization segment of the restarted bit time. If a hard synchronization is done, there will not be a re-synchronization within that bit time. 19.6.6.2 Re-synchronization As a result of re-synchronization, Phase1 Seg may be lengthened or Phase2 Seg may be shortened. The amount of lengthening or shortening of the phase buffer segment has an upper bound known as the Synchronization Jump Width, and is specified by the SJW<1:0> bits (CiCFG1<7:6>). The value of the synchronization jump width will be added to Phase1 Seg or subtracted from Phase2 Seg. The re-synchronization jump width is programmable between 1 TQ and 4 TQ. The following requirement must be fulfilled while setting the SJW<1:0> bits: * Phase2 Seg > Synchronization Jump Width 2004 Microchip Technology Inc. Preliminary DS70082G-page 137 DS70082G-page 138 0324 C1RXF4EIDL Preliminary -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Transmit Buffer 2 Standard Identifier <10:6> -- -- Transmit Buffer 1 Standard Identifier <10:6> -- -- -- Transmit Buffer 1 Byte 1 Transmit Buffer 1 Extended Identifier <5:0> Transmit Buffer 1 Extended Identifier <17:14> -- Transmit Buffer 2 Byte 7 Transmit Buffer 2 Byte 5 Transmit Buffer 2 Byte 3 Transmit Buffer 2 Byte 1 Transmit Buffer 2 Extended Identifier <5:0> -- Receive Acceptance Mask 1 Extended Identifier <5:0> -- -- Receive Acceptance Mask 0 Extended Identifier <5:0> -- -- Receive Acceptance Filter 5 Extended Identifier <5:0> -- -- Receive Acceptance Filter 4 Extended Identifier <5:0> -- -- Receive Acceptance Filter 3 Extended Identifier <5:0> -- -- Transmit Buffer 2 Extended Identifier <17:14> -- -- -- -- -- -- -- -- -- Bit 11 Receive Acceptance Filter 2 Extended Identifier <5:0> -- -- -- Bit 12 Receive Acceptance Filter 1 Extended Identifier <5:0> -- -- -- -- -- -- -- Bit 13 Receive Acceptance Filter 0 Extended Identifier <5:0> -- -- -- -- Bit 14 Bit 15 CAN1 REGISTER MAP u = uninitialized bit 0356 C1TX1B1 Legend: 0354 034E C1TX2CON C1TX1DLC 034C C1TX2B4 0352 034A C1TX2B3 0350 0348 C1TX2B2 C1TX1SID 0346 C1TX2B1 C1TX1EID 0342 C1TX2SID 0344 0340 C1RXM1EIDL C1TX2DLC 033C C1RXM1EIDH C1TX2EID 0338 033A C1RXM1SID 0334 0322 C1RXF4EIDH C1RXM0EIDL 0320 C1RXF4SID 0332 031C C1RXF3EIDL C1RXM0EIDH 031A C1RXF3EIDH 0330 0318 C1RXF3SID 032C 0314 C1RXF2EIDL C1RXM0SID 0312 C1RXF2EIDH C1RXF5EIDL 0310 C1RXF2SID 032A 030C C1RXF1EIDL C1RXF5EIDH 030A C1RXF1EIDH 0328 0308 C1RXF1SID C1RXF5SID 0302 0304 C1RXF0EIDH 0300 C1RXF0SID C1RXF0EIDL Addr. SFR Name TABLE 19-1: -- -- -- -- -- Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- TXRTR -- -- -- TXRTR -- -- -- -- -- -- -- -- TXRB1 -- -- -- TXRB1 -- -- -- TXRB0 -- TXRB0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 2 TXREQ -- -- Transmit Buffer 1 Byte 0 DLC<3:0> -- Transmit Buffer 1 Extended Identifier <13:6> Transmit Buffer 1 Standard Identifier <5:0> TXABT TXLARB TXERR Transmit Buffer 2 Byte 6 Transmit Buffer 2 Byte 4 Transmit Buffer 2 Byte 2 Transmit Buffer 2 Byte 0 DLC<3:0> Transmit Buffer 2 Extended Identifier <13:6> Transmit Buffer 2 Standard Identifier <5:0> -- Receive Acceptance Mask 1 Extended Identifier <17:6> -- Receive Acceptance Mask 0 Extended Identifier <17:6> Receive Acceptance Mask 1 Standard Identifier <10:0> -- -- Receive Acceptance Filter 5 Extended Identifier <17:6> Receive Acceptance Mask 0 Standard Identifier <10:0> -- -- Receive Acceptance Filter 4 Extended Identifier <17:6> Receive Acceptance Filter 5 Standard Identifier <10:0> -- -- Receive Acceptance Filter 3 Extended Identifier <17:6> Receive Acceptance Filter 4 Standard Identifier <10:0> -- -- Receive Acceptance Filter 2 Extended Identifier <17:6> Receive Acceptance Filter 3 Standard Identifier <10:0> -- -- -- Bit 3 Receive Acceptance Filter 1 Extended Identifier <17:6> Receive Acceptance Filter 2 Standard Identifier <10:0> -- Bit 4 Receive Acceptance Filter 0 Extended Identifier <17:6> Receive Acceptance Filter 1 Standard Identifier <10:0> -- Receive Acceptance Filter 0 Standard Identifier <10:0> Bit 0 -- TXIDE -- MIDE -- MIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- SRR -- TXIDE TXPRI<1:0> -- SRR -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 1 Reset State uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u dsPIC30F 2004 Microchip Technology Inc. 2004 Microchip Technology Inc. Preliminary 0394 0396 C1CFG2 C1INTF Legend: Bit 12 Transmit Buffer 1 Byte 5 -- -- -- -- -- RX0OVR -- -- CANCAP -- -- -- -- -- -- -- -- -- Transmit Buffer 0 Byte 7 Transmit Buffer 0 Byte 5 Transmit Buffer 0 Byte 3 Transmit Buffer 0 Byte 1 -- -- -- -- -- -- -- RX1OVR WAKFIL -- -- -- -- TXEP -- -- ABAT -- -- RXEP -- -- CANCKS -- Transmit Error Count Register -- TXBO -- -- CSIDLE -- Receive Buffer 0 Byte 7 Receive Buffer 0 Byte 5 Receive Buffer 0 Byte 3 Receive Buffer 0 Byte 1 Receive Buffer 0 Extended Identifier <5:0> -- -- -- Receive Buffer 1 Byte 7 Receive Buffer 1 Byte 5 Receive Buffer 1 Byte 3 Receive Buffer 1 Byte 1 Receive Buffer 1 Extended Identifier <5:0> -- -- -- -- -- Transmit Buffer 1 Byte 7 Transmit Buffer 0 Extended Identifier <5:0> -- -- Bit 11 Transmit Buffer 1 Byte 3 Bit 13 Transmit Buffer 0 Standard Identifier <10:6> -- Bit 14 Transmit Buffer 0 Extended Identifier <17:14> -- Bit 15 CAN1 REGISTER MAP (CONTINUED) u = uninitialized bit 039A 0392 C1CFG1 C1EC 0390 C1CTRL 0398 038E C1RX0CON C1INTE 038A 038C 0388 C1RX0B2 C1RX0B4 0386 C1RX0B1 C1RX0B3 0382 0384 0380 C1RX0SID C1RX0DLC 037E C1RX1CON C1RX0EID 037A 037C 0378 C1RX1B2 C1RX1B4 0376 C1RX1B1 C1RX1B3 0374 036E C1TX0CON C1RX1DLC 036C C1TX0B4 0370 036A C1TX0B3 0372 0368 C1TX0B2 C1RX1SID 0366 C1TX0B1 C1RX1EID 0362 C1TX0SID 0364 0360 C1TX1CON C1TX0DLC 035E C1TX1B4 C1TX0EID 035A 035C C1TX1B3 0358 Addr. C1TX1B2 SFR Name TABLE 19-1: -- TXRB1 -- -- -- Bit 8 -- -- TXRB0 -- Bit 7 -- RXRB1 RXFUL SEG2PH<2:0> -- -- -- RXRB1 REQOP<2:0> -- RXRTR -- -- -- -- -- -- -- IVRIE IVRIF SEG2PHTS WAKIE WAKIF SAM SJW<1:0> OPMODE<2:0> RXFUL -- RXRB0 TX2IE SRR RXIDE DLC<3:0> SRR RXIDE FILHIT<2:0> TX1IE TX1IF TX0IE RX1E RX1IF -- RX0IE RX0IF PRSEG<2:0> TX0IF BRP<5:0> ICODE<2:0> Receive Error Count Register ERRIE TX2IF -- TXIDE TXPRI<1:0> -- SRR DLC<3:0> -- -- Bit 0 TXPRI<1:0> Bit 1 RXRTRRO DBEN JTOFF FILHIT0 SEG1PH<2:0> -- -- Receive Buffer 0 Byte 6 Receive Buffer 0 Byte 4 Receive Buffer 0 Byte 2 Receive Buffer 0 Byte 0 ERRIF -- -- RXRTRRO Receive Buffer 1 Byte 6 Receive Buffer 1 Byte 4 Receive Buffer 1 Byte 2 Receive Buffer 1 Byte 0 RXRB0 TXREQ Transmit Buffer 0 Byte 6 Transmit Buffer 0 Byte 4 Transmit Buffer 0 Byte 2 Transmit Buffer 0 Byte 0 DLC<3:0> TXABT TXLARB TXERR -- -- Bit 2 Transmit Buffer 0 Extended Identifier <13:6> Receive Buffer 0 Extended Identifier <17:6> -- TXREQ Transmit Buffer 1 Byte 6 Transmit Buffer 1 Byte 4 Receive Buffer 1 Extended Identifier <17:6> -- Bit 3 Transmit Buffer 0 Standard Identifier <5:0> Receive Buffer 0 Standard Identifier <10:0> -- RXRTR Bit 4 Transmit Buffer 1 Byte 2 Bit 5 TXABT TXLARB TXERR Bit 6 Receive Buffer 1 Standard Identifier <10:0> -- TXRTR -- -- -- Bit 9 TXWAR RXWAR EWARN -- -- -- -- -- -- -- Bit 10 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0u00 0uuu uuuu uuuu 0000 0000 0000 0000 0000 0100 1000 0000 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu 000u uuuu 0000 uuuu uuuu uuuu 000u uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu 000u uuuu 0000 uuuu uuuu uuuu 000u uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu dsPIC30F DS70082G-page 139 DS70082G-page 140 Preliminary 0414 0416 0418 C2TX1B1 C2TX1B2 040E C2TX2CON C2TX1DLC 040C C2TX2B4 0412 040A C2TX2B3 0410 0408 C2TX2B2 C2TX1SID 0406 C2TX2B1 C2TX1EID 0402 0400 C2TX2SID 0404 03FC C2RXM1EIDL C2TX2DLC 03FA C2RXM1EIDH C2TX2EID 03F4 03F2 C2RXM0EIDH 03F8 03F0 C2RXM0SID C2RXM1SID 03EC C2RXF5EIDL C2RXM0EIDL 03EA 03E4 C2RXF4EIDL C2RXF5EIDH 03E2 C2RXF4EIDH 03E8 03E0 C2RXF5SID 03DC 03D4 C2RXF2EIDL C2RXF4SID 03D2 C2RXF2EIDH C2RXF3EIDL 03D0 C2RXF2SID 03D8 03CC C2RXF1EIDL 03DA 03CA C2RXF1EIDH C2RXF3EIDH 03C8 C2RXF1SID C2RXF3SID 03C2 03C4 C2RXF0EIDH 03C0 C2RXF0SID C2RXF0EIDL Addr. SFR Name TABLE 19-2: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Transmit Buffer 2 Standard Identifier <10:6> -- -- Transmit Buffer 1 Standard Identifier <10:6> -- -- -- Transmit Buffer 1 Byte 3 Transmit Buffer 1 Byte 1 Transmit Buffer 1 Extended Identifier <5:0> Transmit Buffer 1 Extended Identifier <17:14> -- Transmit Buffer 2 Byte 7 Transmit Buffer 2 Byte 5 Transmit Buffer 2 Byte 3 Transmit Buffer 2 Byte 1 Transmit Buffer 2 Extended Identifier <5:0> -- Receive Acceptance Mask 1 Extended Identifier <5:0> -- -- Receive Acceptance Mask 0 Extended Identifier <5:0> -- -- Receive Acceptance Filter 5 Extended Identifier <5:0> -- -- Transmit Buffer 2 Extended Identifier <17:14> -- -- Receive Acceptance Filter 4 Extended Identifier <5:0> -- -- -- -- -- -- Receive Acceptance Filter 3 Extended Identifier <5:0> -- -- -- -- Bit 11 Receive Acceptance Filter 2 Extended Identifier <5:0> -- -- -- -- -- Bit 12 Receive Acceptance Filter 1 Extended Identifier <5:0> -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 13 Receive Acceptance Filter 0 Extended Identifier <5:0> -- -- -- -- Bit 14 Bit 15 CAN2 REGISTER MAP -- -- -- -- -- Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- TXRTR -- -- -- TXRTR -- -- -- -- -- -- -- -- TXRB1 -- -- -- TXRB1 -- -- -- TXRB0 -- TXRB0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 2 TXREQ -- -- Transmit Buffer 1 Byte 2 Transmit Buffer 1 Byte 0 DLC<3:0> -- Transmit Buffer 1 Extended Identifier <13:6> Transmit Buffer 1 Standard Identifier <5:0> TXABT TXLARB TXERR Transmit Buffer 2 Byte 6 Transmit Buffer 2 Byte 4 Transmit Buffer 2 Byte 2 Transmit Buffer 2 Byte 0 DLC<3:0> Transmit Buffer 2 Extended Identifier <13:6> Transmit Buffer 2 Standard Identifier <5:0> -- Receive Acceptance Mask 1 Extended Identifier <17:6> -- Receive Acceptance Mask 0 Extended Identifier <17:6> Receive Acceptance Mask 1 Standard Identifier <10:0> -- -- Receive Acceptance Filter 5 Extended Identifier <17:6> Receive Acceptance Mask 0 Standard Identifier <10:0> -- -- Receive Acceptance Filter 4 Extended Identifier <17:6> Receive Acceptance Filter 5 Standard Identifier <10:0> -- -- Receive Acceptance Filter 3 Extended Identifier <17:6> Receive Acceptance Filter 4 Standard Identifier <10:0> -- -- Receive Acceptance Filter 2 Extended Identifier <17:6> Receive Acceptance Filter 3 Standard Identifier <10:0> -- -- -- Bit 3 Receive Acceptance Filter 1 Extended Identifier <17:6> Receive Acceptance Filter 2 Standard Identifier <10:0> -- Bit 4 Receive Acceptance Filter 0 Extended Identifier <17:6> Receive Acceptance Filter 1 Standard Identifier <10:0> -- Receive Acceptance Filter 0 Standard Identifier <10:0> Bit 0 -- TXIDE -- MIDE -- MIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- EXIDE -- SRR -- TXIDE TXPRI<1:0> -- SRR -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 1 Reset State uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u uuuu uu00 0000 0000 0000 uuuu uuuu uuuu 000u uuuu uuuu uu0u dsPIC30F 2004 Microchip Technology Inc. 2004 Microchip Technology Inc. Preliminary Bit 12 -- -- -- -- -- RX0OVR -- CANCAP -- -- -- -- -- -- -- -- -- Receive Buffer 1 Byte 7 Receive Buffer 1 Byte 5 Receive Buffer 1 Byte 3 Receive Buffer 1 Byte 1 -- RX1OVR WAKFIL -- -- -- -- TXEP -- -- ABAT -- -- RXEP -- -- CANCKS -- Transmit Error Count Register -- TXBO -- -- CSIDLE -- Receive Buffer 0 Byte 7 Receive Buffer 0 Byte 5 Receive Buffer 0 Byte 3 Receive Buffer 0 Byte 1 Receive Buffer 0 Extended Identifier <5:0> -- -- -- -- -- -- -- Transmit Buffer 0 Byte 7 Transmit Buffer 0 Byte 5 Transmit Buffer 0 Byte 3 Transmit Buffer 0 Byte 1 Receive Buffer 1 Extended Identifier <5:0> -- -- -- -- -- -- Transmit Buffer 1 Byte 7 -- Transmit Buffer 0 Extended Identifier <5:0> -- -- Bit 11 Transmit Buffer 1 Byte 5 Bit 13 Transmit Buffer 0 Standard Identifier <10:6> -- Bit 14 Transmit Buffer 0 Extended Identifier <17:14> -- Bit 15 CAN2 REGISTER MAP (CONTINUED) -- TXRB1 -- -- -- Bit 8 -- -- TXRB0 -- Bit 7 -- RXRB1 RXFUL SEG2PH<2:0> -- -- -- RXRB1 REQOP<2:0> -- RXRTR -- -- -- -- -- -- -- IVRIE IVRIF SEG2PHTS WAKIE WAKIF SAM SJW<1:0> OPMODE<2:0> RXFUL -- RXRB0 TX2IE SRR RXIDE DLC<3:0> SRR RXIDE FILHIT<2:0> TX1IE TX1IF TX0IE RX1E RX1IF -- RX0IE RX0IF PRSEG<2:0> TX0IF BRP<5:0> ICODE<2:0> Receive Error Count Register ERRIE TX2IF -- TXIDE TXPRI<1:0> -- SRR DLC<3:0> -- -- Bit 0 TXPRI<1:0> Bit 1 RXRTRRO DBEN JTOFF FILHIT0 SEG1PH<2:0> -- -- Receive Buffer 0 Byte 6 Receive Buffer 0 Byte 4 Receive Buffer 0 Byte 2 Receive Buffer 0 Byte 0 ERRIF -- -- RXRTRRO Receive Buffer 1 Byte 6 Receive Buffer 1 Byte 4 Receive Buffer 1 Byte 2 Receive Buffer 1 Byte 0 RXRB0 TXREQ Transmit Buffer 0 Byte 6 Transmit Buffer 0 Byte 4 Transmit Buffer 0 Byte 2 Transmit Buffer 0 Byte 0 DLC<3:0> TXABT TXLARB TXERR -- -- Bit 2 Transmit Buffer 0 Extended Identifier <13:6> Receive Buffer 0 Extended Identifier <17:6> -- TXREQ Transmit Buffer 1 Byte 6 Receive Buffer 1 Extended Identifier <17:6> -- Bit 3 Transmit Buffer 0 Standard Identifier <5:0> Receive Buffer 0 Standard Identifier <10:0> -- RXRTR Bit 4 Transmit Buffer 1 Byte 4 Bit 5 TXABT TXLARB TXERR Bit 6 Receive Buffer 1 Standard Identifier <10:0> -- TXRTR -- -- -- Bit 9 TXWAR RXWAR EWARN -- -- -- -- -- -- -- Bit 10 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. 045A 0458 C2INTE C2EC 0454 0452 C2CFG1 0456 0450 C2CTRL C2CFG2 044E C2RX0CON C2INTF 044A 044C 0448 C2RX0B2 C2RX0B4 0446 C2RX0B1 C2RX0B3 0442 0444 0440 C2RX0SID C2RX0DLC 043E C2RX1CON C2RX0EID 043A 043C 0438 C2RX1B2 C2RX1B4 0436 C2RX1B1 C2RX1B3 0434 042E C2TX0CON C2RX1DLC 042C C2TX0B4 0430 042A C2TX0B3 0432 0428 C2TX0B2 C2RX1SID 0426 C2TX0B1 C2RX1EID 0422 0420 C2TX0SID 0424 041E C2TX1CON C2TX0DLC 041C C2TX1B4 C2TX0EID 041A Addr. C2TX1B3 SFR Name TABLE 19-2: Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0u00 0uuu uuuu uuuu 0000 0000 0000 0000 0000 0100 1000 0000 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu 000u uuuu 0000 uuuu uuuu uuuu 000u uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu 000u uuuu 0000 uuuu uuuu uuuu 000u uuuu uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu u000 uuuu 0000 uuuu uuuu uuuu u000 uuuu uuuu 0000 0000 0000 0000 uuuu uuuu uuuu uuuu uuuu uuuu uuuu uuuu dsPIC30F DS70082G-page 141 dsPIC30F NOTES: DS70082G-page 142 Preliminary 2004 Microchip Technology Inc. dsPIC30F 20.0 10-BIT HIGH SPEED ANALOGTO-DIGITAL CONVERTER (A/D) MODULE Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). The10-bit high-speed analog-to-digital converter (A/D) allows conversion of an analog input signal to a 10-bit digital number. This module is based on a Successive Approximation Register (SAR) architecture, and provides a maximum sampling rate of 500 ksps. The A/D module has up to 16 analog inputs which are multiplexed into four sample and hold amplifiers. The output of the sample and hold is the input into the converter, which generates the result. The analog reference voltages are software selectable to either the device supply voltage (AVDD/AVSS) or the voltage level on the (VREF+/VREF-) pin. The A/D converter has a unique feature of being able to operate while the device is in Sleep mode. 2004 Microchip Technology Inc. The A/D module has six 16-bit registers: * * * * * * A/D Control Register1 (ADCON1) A/D Control Register2 (ADCON2) A/D Control Register3 (ADCON3) A/D Input Select Register (ADCHS) A/D Port Configuration Register (ADPCFG) A/D Input Scan Selection Register (ADCSSL) The ADCON1, ADCON2 and ADCON3 registers control the operation of the A/D module. The ADCHS register selects the input channels to be converted. The ADPCFG register configures the port pins as analog inputs or as digital I/O. The ADCSSL register selects inputs for scanning. Note: The SSRC<2:0>, ASAM, SIMSAM, SMPI<3:0>, BUFM and ALTS bits, as well as the ADCON3 and ADCSSL registers, must not be written to while ADON = 1. This would lead to indeterminate results. The block diagram of the A/D module is shown in Figure 20-1. Preliminary DS70082G-page 143 dsPIC30F FIGURE 20-1: 10-BIT HIGH SPEED A/D FUNCTIONAL BLOCK DIAGRAM AVDD AVSS VREF+ VREF- AN2 + AN6 AN9 - AN1 AN4 + AN7 AN10 - AN2 AN5 + AN8 AN11 - S/H CH1 ADC 10-bit Result S/H Conversion Logic CH2 16-word, 10-bit Dual Port Buffer S/H CH3 CH1,CH2, CH3,CH0 sample AN3 AN0 AN1 AN2 AN3 AN4 AN4 AN5 AN5 AN6 AN6 AN7 AN7 AN8 AN8 AN9 AN9 AN10 AN10 AN11 AN11 AN12 AN12 AN13 AN13 AN14 AN14 AN15 AN15 + AN1 - input switches S/H Sample/Sequence Control Bus Interface AN1 AN0 AN3 Data Format AN0 Input Mux Control CH0 Note: Input multiplexer circuit will vary depending on the device selected. DS70082G-page 144 Preliminary 2004 Microchip Technology Inc. dsPIC30F 20.1 A/D Result Buffer The module contains a 16-word dual port read-only buffer, called ADCBUF0...ADCBUFF, to buffer the A/D results. The RAM is 10-bits wide, but is read into different format 16-bit words. The contents of the sixteen A/D conversion result buffer registers, ADCBUF0 through ADCBUFF, cannot be written by user software. 20.2 Conversion Operation After the A/D module has been configured, the sample acquisition is started by setting the SAMP bit. Various sources, such as a programmable bit, timer time-outs and external events, will terminate acquisition and start a conversion. When the A/D conversion is complete, the result is loaded into ADCBUF0...ADCBUFF, and the A/D interrupt flag ADIF and the DONE bit are set after the number of samples specified by the SMPI bit. The following steps should be followed for doing an A/D conversion: 1. 2. 3. 4. 5. 6. 7. Configure the A/D module: Configure analog pins, voltage reference and digital I/O Select A/D input channels Select A/D conversion clock Select A/D conversion trigger Turn on A/D module Configure A/D interrupt (if required): Clear ADIF bit Select A/D interrupt priority Start sampling. Wait the required acquisition time. Trigger acquisition end, start conversion Wait for A/D conversion to complete, by either: Waiting for the A/D interrupt Read A/D result buffer, clear ADIF if required. 20.3 Selecting the Conversion Sequence Several groups of control bits select the sequence in which the A/D connects inputs to the sample/hold channels, converts channels, writes the buffer memory, and generates interrupts. The sequence is controlled by the sampling clocks. The SIMSAM bit controls the acquire/convert sequence for multiple channels. If the SIMSAM bit is `0', the two or four selected channels are acquired and converted sequentially, with two or four sample clocks. If the SIMSAM bit is `1', two or four selected channels are acquired simultaneously, with one sample clock. The channels are then converted sequentially. Obviously, if there is only 1 channel selected, the SIMSAM bit is not applicable. 2004 Microchip Technology Inc. The CHPS bits selects how many channels are sampled. This can vary from 1, 2 or 4 channels. If CHPS selects 1 channel, the CH0 channel will be sampled at the sample clock and converted. The result is stored in the buffer. If CHPS selects 2 channels, the CH0 and CH1 channels will be sampled and converted. If CHPS selects 4 channels, the CH0, CH1, CH2 and CH3 channels will be sampled and converted. The SMPI bits select the number of acquisition/conversion sequences that would be performed before an interrupt occurs. This can vary from 1 sample per interrupt to 16 samples per interrupt. The user cannot program a combination of CHPS and SMPI bits that specifies more than 16 conversions per interrupt, or 8 conversions per interrupt, depending on the BUFM bit. The BUFM bit, when set, will split the 16--word results buffer (ADCBUF0...ADCBUFF) into two 8-word groups. Writing to the 8-word buffers will be alternated on each interrupt event. Use of the BUFM bit will depend on how much time is available for moving data out of the buffers after the interrupt, as determined by the application. If the processor can quickly unload a full buffer within the time it takes to acquire and convert one channel, the BUFM bit can be `0' and up to 16 conversions may be done per interrupt. The processor will have one sample and conversion time to move the sixteen conversions. If the processor cannot unload the buffer within the acquisition and conversion time, the BUFM bit should be `1'. For example, if SMPI<3:0> (ADCON2<5:2>) = 0111, then eight conversions will be loaded into 1/2 of the buffer, following which an interrupt occurs. The next eight conversions will be loaded into the other 1/2 of the buffer. The processor will have the entire time between interrupts to move the eight conversions. The ALTS bit can be used to alternate the inputs selected during the sampling sequence. The input multiplexer has two sets of sample inputs: MUX A and MUX B. If the ALTS bit is `0', only the MUX A inputs are selected for sampling. If the ALTS bit is `1' and SMPI<3:0> = 0000, on the first sample/convert sequence, the MUX A inputs are selected, and on the next acquire/convert sequence, the MUX B inputs are selected. The CSCNA bit (ADCON2<10>) will allow the CH0 channel inputs to be alternately scanned across a selected number of analog inputs for the MUX A group. The inputs are selected by the ADCSSL register. If a particular bit in the ADCSSL register is `1', the corresponding input is selected. The inputs are always scanned from lower to higher numbered inputs, starting after each interrupt. If the number of inputs selected is greater than the number of samples taken per interrupt, the higher numbered inputs are unused. Preliminary DS70082G-page 145 dsPIC30F 20.4 Programming the Start of Conversion Trigger 20.5 The conversion trigger will terminate acquisition and start the requested conversions. The SSRC<2:0> bits select the source of the conversion trigger. The SSRC bits provide for up to 5 alternate sources of conversion trigger. When SSRC<2:0> = 000, the conversion trigger is under software control. Clearing the SAMP bit will cause the conversion trigger. When SSRC<2:0> = 111 (Auto Start mode), the conversion trigger is under A/D clock control. The SAMC bits select the number of A/D clocks between the start of acquisition and the start of conversion. This provides the fastest conversion rates on multiple channels. SAMC must always be at least 1 clock cycle. Other trigger sources can come from timer modules, Motor Control PWM module, or external interrupts.. Note: To operate the A/D at the maximum specified conversion speed, the Auto Convert Trigger option should be selected (SSRC = 111) and the Auto Sample Time bits shoud be set to 1 TAD (SAMC = 00001). This configuration will give a total conversion period (sample + convert) of 13 TAD. Aborting a Conversion Clearing the ADON bit during a conversion will abort the current conversion and stop the sampling sequencing. The ADCBUF will not be updated with the partially completed A/D conversion sample. That is, the ADCBUF will continue to contain the value of the last completed conversion (or the last value written to the ADCBUF register). If the clearing of the ADON bit coincides with an auto start, the clearing has a higher priority. After the A/D conversion is aborted, a 2 TAD wait is required before the next sampling may be started by setting the SAMP bit. If sequential sampling is specified, the A/D will continue at the next sample pulse which corresponds with the next channel converted. If simultaneous sampling is specified, the A/D will continue with the next multi-channel group conversion sequence. 20.6 Selecting the A/D Conversion Clock The A/D conversion requires 13 TAD. The source of the A/D conversion clock is software selected using a six bit counter. There are 64 possible options for TAD. EQUATION 20-1: The use of any other conversion trigger will result in additional TAD cycles to synchronize the external event to the A/D. A/D CONVERSION CLOCK TAD = TCY * (0.5*(ADCS<5:0> +1)) The internal RC oscillator is selected by setting the ADRC bit. For correct A/D conversions, the A/D conversion clock (TAD) must be selected to ensure a minimum TAD time of 154 nsec (for VDD = 5V). DS70082G-page 146 Preliminary 2004 Microchip Technology Inc. dsPIC30F 20.7 Module Power-down Modes If the A/D interrupt is enabled, the device will wake-up from Sleep. If the A/D interrupt is not enabled, the A/D module will then be turned off, although the ADON bit will remain set. The module has 3 internal power modes. When the ADON bit is `1', the module is in Active mode; it is fully powered and functional. When ADON is `0', the module is in Off mode. The digital and analog portions of the circuit are disabled for maximum current savings. In order to return to the Active mode from Off mode, the user must wait for the ADC circuitry to stabilize. 20.8 20.8.1 20.8.2 The ADSIDL bit selects if the module will stop on Idle or continue on Idle. If ADSIDL = 0, the module will continue operation on assertion of Idle mode. If ADSIDL = 1, the module will stop on Idle. A/D Operation During CPU Sleep and Idle Modes 20.9 A/D OPERATION DURING CPU SLEEP MODE Effects of a Reset A device Reset forces all registers to their Reset state. This forces the A/D module to be turned off, and any conversion and acquisition sequence is aborted. The values that are in the ADCBUF registers are not modified. The A/D result register will contain unknown data after a Power-on Reset. When the device enters Sleep mode, all clock sources to the module are shutdown and stay at logic `0'. If Sleep occurs in the middle of a conversion, the conversion is aborted. The converter will not continue with a partially completed conversion on exit from Sleep mode. 20.10 Output Formats Register contents are not affected by the device entering or leaving Sleep mode. The A/D result is 10-bits wide. The data buffer RAM is also 10-bits wide. The 10-bit data can be read in one of four different formats. The FORM<1:0> bits select the format. Each of the output formats translates to a 16-bit result on the data bus. The A/D module can operate during Sleep mode if the A/D clock source is set to RC (ADRC = 1). When the RC clock source is selected, the A/D module waits one instruction cycle before starting the conversion. This allows the SLEEP instruction to be executed, which eliminates all digital switching noise from the conversion. When the conversion is complete, the CONV bit will be cleared and the result loaded into the ADCBUF register. FIGURE 20-2: A/D OPERATION DURING CPU IDLE MODE Write data will always be in right justified (integer) format. A/D OUTPUT DATA FORMATS RAM Contents: d09 d08 d07 d06 d05 d04 d03 d02 d01 d00 Read to Bus: Signed Fractional (1.15) d09 d08 d07 d06 d05 d04 d03 d02 d01 d00 0 0 0 0 0 0 Fractional (1.15) d09 d08 d07 d06 d05 d04 d03 d02 d01 d00 0 0 0 0 0 0 Signed Integer Integer 2004 Microchip Technology Inc. d09 d09 d09 d09 d09 d09 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00 0 0 0 0 0 0 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00 Preliminary DS70082G-page 147 dsPIC30F 20.11 Configuring Analog Port Pins 20.12 Connection Considerations The use of the ADPCFG and TRIS registers control the operation of the A/D port pins. The port pins that are desired as analog inputs must have their corresponding TRIS bit set (input). If the TRIS bit is cleared (output), the digital output level (VOH or VOL) will be converted. The analog inputs have diodes to VDD and VSS as ESD protection. This requires that the analog input be between VDD and VSS. If the input voltage exceeds this range by greater than 0.3V (either direction), one of the diodes becomes forward biased and it may damage the device if the input current specification is exceeded. The A/D operation is independent of the state of the CH0SA<3:0>/CH0SB<3:0> bits and the TRIS bits. An external RC filter is sometimes added for antialiasing of the input signal. The R component should be selected to ensure that the sampling time requirements are satisfied. Any external components connected (via high impedance) to an analog input pin (capacitor, zener diode, etc.) should have very little leakage current at the pin. When reading the PORT register, all pins configured as analog input channels will read as cleared. Pins configured as digital inputs will not convert an analog input. Analog levels on any pin that is defined as a digital input (including the ANx pins), may cause the input buffer to consume current that exceeds the device specifications. DS70082G-page 148 Preliminary 2004 Microchip Technology Inc. 2004 Microchip Technology Inc. 02A8 PCFG15 PCFG14 02AA CSSL15 CSSL14 u = uninitialized bit ADPCFG ADCSSL Legend: -- -- Preliminary -- -- Bit 8 CHPS<1:0> FORM<1:0> Bit 9 CH0SB<3:0> SAMC<4:0> CSCNA -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 10 CSSL12 CSSL11 CSSL10 CSSL9 CSSL8 PCFG12 PCFG11 PCFG10 PCFG9 PCFG8 CH0NB -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 11 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 12 -- -- CSSL7 PCFG7 CSSL6 PCFG6 Bit 5 Bit 4 ADC Data Buffer 9 ADC Data Buffer 8 ADC Data Buffer 7 ADC Data Buffer 6 ADC Data Buffer 5 ADC Data Buffer 4 ADC Data Buffer 3 ADC Data Buffer 2 ADC Data Buffer 1 ADC Data Buffer 0 CSSL5 PCFG5 CH123SA SIMSAM Bit 3 CSSL4 PCFG4 CH0NA ASAM Bit 2 CSSL3 PCFG3 BUFM SAMP Bit 1 ALTS DONE Bit 0 Reset State 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu 0000 00uu uuuu uuuu CSSL2 CSSL1 CSSL0 0000 0000 0000 0000 PCFG2 PCFG1 PCFG0 0000 0000 0000 0000 CH0SA<3:0> ADCS<5:0> SMPI<3:0> -- ADC Data Buffer 15 ADC Data Buffer 14 ADC Data Buffer 13 ADC Data Buffer 12 ADC Data Buffer 11 ADC Data Buffer 10 SSRC<2:0> Bit 6 CH123NA<1:0> ADRC BUFS Bit 7 Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. CSSL13 PCFG13 CH123SB VCFG<2:0> ADSIDL -- CH123NB<1:0> -- ADON -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bit 13 -- 02A6 -- -- -- ADCHS 029C ADCBUFE -- -- 02A4 029A ADCBUFD -- -- 02A2 0298 ADCBUFC -- -- ADCON3 0296 ADCBUFB -- -- ADCON2 0294 ADCBUFA -- -- 02A0 0292 ADCBUF9 -- -- ADCON1 0290 ADCBUF8 -- -- 029E 028E ADCBUF7 -- -- -- -- -- -- -- -- -- -- -- -- ADCBUFF 028A 0288 ADCBUF4 028C 0286 ADCBUF3 ADCBUF6 0284 ADCBUF2 ADCBUF5 0282 ADCBUF1 -- -- Bit 14 Bit 15 0280 SFR Name Addr. ADCBUF0 ADC REGISTER MAP TABLE 20-1: dsPIC30F DS70082G-page 149 dsPIC30F NOTES: DS70082G-page 150 Preliminary 2004 Microchip Technology Inc. dsPIC30F 21.0 SYSTEM INTEGRATION 21.1 Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). There are several features intended to maximize system reliability, minimize cost through elimination of external components, provide Power Saving Operating modes and offer code protection: * Oscillator Selection * Reset - Power-on Reset (POR) - Power-up Timer (PWRT) - Oscillator Start-up Timer (OST) - Programmable Brown-out Reset (BOR) * Watchdog Timer (WDT) * Power Saving modes (Sleep and Idle) * Code Protection * Unit ID Locations * In-Circuit Serial Programming (ICSP) Oscillator System Overview The dsPIC30F oscillator system has the following modules and features: * Various external and internal oscillator options as clock sources * An on-chip PLL to boost internal operating frequency * A clock switching mechanism between various clock sources * Programmable clock postscaler for system power savings * A Fail-Safe Clock Monitor (FSCM) that detects clock failure and takes fail-safe measures * Clock Control Register OSCCON * Configuration bits for main oscillator selection Table 21-1 provides a summary of the dsPIC30F Oscillator Operating modes. A simplified diagram of the oscillator system is shown in Figure 21-1. Configuration bits determine the clock source upon Power-on Reset (POR) and Brown-out Reset (BOR). Thereafter, the clock source can be changed between permissible clock sources. The OSCCON register controls the clock switching and reflects system clock related status bits. dsPIC30F devices have a Watchdog Timer, which is permanently enabled via the configuration bits, or can be software controlled. It runs off its own RC oscillator for added reliability. There are two timers that offer necessary delays on power-up. One is the Oscillator Startup Timer (OST), intended to keep the chip in Reset until the crystal oscillator is stable. The other is the Powerup Timer (PWRT), which provides a delay on power-up only, designed to keep the part in Reset while the power supply stabilizes. With these two timers on-chip, most applications need no external Reset circuitry. Sleep mode is designed to offer a very low current Power-down mode. The user can wake-up from Sleep through external Reset, Watchdog Timer Wake-up or through an interrupt. Several oscillator options are also made available to allow the part to fit a wide variety of applications. In the Idle mode, the clock sources are still active, but the CPU is shut-off. The RC oscillator option saves system cost, while the LP crystal option saves power. 2004 Microchip Technology Inc. Preliminary DS70082G-page 151 dsPIC30F TABLE 21-1: OSCILLATOR OPERATING MODES Oscillator Mode Description XTL 200 kHz-4 MHz crystal on OSC1:OSC2 XT 4 MHz-10 MHz crystal on OSC1:OSC2 XT w/ PLL 4x 4 MHz-10 MHz crystal on OSC1:OSC2, 4x PLL enabled XT w/ PLL 8x 4 MHz-10 MHz crystal on OSC1:OSC2, 8x PLL enabled XT w/ PLL 16x 4 MHz-10 MHz crystal on OSC1:OSC2, 16x PLL enabled(1) LP 32 kHz crystal on SOSCO:SOSCI(2) HS 10 MHz-25 MHz crystal EC External clock input (0-40 MHz) ECIO External clock input (0-40 MHz), OSC2 pin is I/O EC w/ PLL 4x External clock input (0-40 MHz), OSC2 pin is I/O, 4x PLL enabled(1) EC w/ PLL 8x External clock input (0-40 MHz), OSC2 pin is I/O, 8x PLL enabled(1) EC w/ PLL 16x External clock input (0-40 MHz), OSC2 pin is I/O, 16x PLL enabled(1) ERC External RC oscillator, OSC2 pin is FOSC/4 output(3) ERCIO External RC oscillator, OSC2 pin is I/O(3) FRC 8 MHz internal RC oscillator FRC w/ PLL 4x 8 MHz Internal RC oscillator, 4x PLL enabled(4) FRC w/ PLL 8x 8 MHz Internal RC oscillator, 8x PLL enabled(4) FRC w/ PLL 16x 7.5 MHz Internal RC oscillator, 16x PLL enabled(4) LPRC 512 kHz internal RC oscillator Note 1: 2: 3: 4: dsPIC30F maximum operating frequency of 120 MHz must be met. LP oscillator can be conveniently shared as system clock, as well as real-time clock for Timer1. Requires external R and C. Frequency operation up to 4 MHz. Some dsPIC30F devices do not have these oscillator options. Please refer to the specific device data sheet for details. DS70082G-page 152 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 21-1: OSCILLATOR SYSTEM BLOCK DIAGRAM Oscillator Configuration bits PWRSAV Instruction Wake-up Request OSC1 OSC2 FPLL Primary Oscillator PLL PLL x4, x8, x16 Lock COSC<1:0> Primary Osc NOSC<1:0> Primary Oscillator OSWEN Stability Detector POR Done Oscillator Start-up Timer Clock Secondary Osc Switching and Control Block SOSCO SOSCI 32 kHz LP Oscillator Secondary Oscillator Stability Detector Programmable Clock Divider System Clock 2 POST<1:0> Internal Fast RC Oscillator (FRC) Internal Low Power RC Oscillator (LPRC) LPRC FCKSM<1:0> 2 Fail-Safe Clock Monitor (FSCM) CF Oscillator Trap To Timer1 . Note: Paths indicated by dotted lines are not available on all devices. Please refer to the specific device data sheet for details. 2004 Microchip Technology Inc. Preliminary DS70082G-page 153 dsPIC30F 21.2 21.2.1 Oscillator Configurations 21.2.4 INITIAL CLOCK SOURCE SELECTION While coming out of Power-on Reset or Brown-out Reset, the device selects its clock source based on two groups of configuration bits in the FOSC device configuration register. The FOS configuration bits select the oscillator that is used (i.e., primary, FRC, LPRC). The FPR configuration bits determine the primary oscillator mode (i.e., HS, XT, XT w/ PLL 4x, etc. 21.2.2 OSCILLATOR START-UP TIMER (OST) In order to ensure that a crystal oscillator (or ceramic resonator) has started and stabilized, an oscillator start-up timer is included. It is a simple 10-bit counter that counts 1024 TOSC cycles before releasing the oscillator clock to the rest of the system. The time-out period is designated as TOST. The TOST time is involved every time the oscillator has to restart (i.e., on POR, BOR and wake-up from Sleep). The oscillator start-up timer is applied to the LP Oscillator, XT, XTL, and HS modes (upon wake-up from Sleep, POR and BOR) for the primary oscillator. 21.2.3 LP OSCILLATOR CONTROL Enabling the LP oscillator is controlled with two elements: 1. 2. The current oscillator group bits COSC<1:0>. The LPOSCEN bit (OSCON register). The LP oscillator is ON (even during Sleep mode) if LPOSCEN = 1. The LP oscillator is the device clock if: * COSC<1:0> = 00 (LP selected as main oscillator) and * LPOSCEN = 1 Keeping the LP oscillator ON at all times allows for a fast switch to the 32 kHz system clock for lower power operation. Returning to the faster main oscillator will still require a start-up time DS70082G-page 154 PHASE LOCKED LOOP (PLL) The PLL multiplies the clock which is generated by the primary oscillator. The PLL is selectable to have either gains of x4, x8 and x16. Input and output frequency ranges are summarized in Table 21-2. TABLE 21-2: Fin 4 MHz-10 MHz 4 MHz-10 MHz 4 MHz-7.5 MHz PLL FREQUENCY RANGE PLL Multiplier x4 x8 x16 Fout 16 MHz-40 MHz 32 MHz-80 MHz 64 MHz-160 MHz The PLL features a lock output, which is asserted when the PLL enters a phase locked state. Should the loop fall out of lock (e.g., due to noise), the lock signal will be rescinded. The state of this signal is reflected in the read only LOCK bit in the OSCCON register. 21.2.5 FAST RC OSCILLATOR (FRC) The FRC oscillator is a fast (8 MHz nominal) internal RC oscillator. This oscillator is intended to provide reasonable device operating speeds without the use of an external crystal, ceramic resonator, or RC network. The FRC oscillator can be used with the PLL to obtain higher clock frequencies. The dsPIC30F operates from the FRC oscillator whenever the current oscillator selection control bits in the OSCCON register (OSCCON<13:12>) are set to `01'. The four bit field specified by TUN<3:0> (OSCON <15:14> and OSCON<11:10>) allows the user to tune the internal fast RC oscillator (nominal 8.0 MHz). The user can tune the FRC oscillator within a range of +10.5% (840 kHz) and -12% (960 kHz) in steps of 1.50% around the factory-calibrated setting, see Table 21-3. If OSCCON<13:12> are set to `11' and FPR<3:0> are set to `0001', `1010' or `0011', then a PLL multiplier of 4, 8 or 16 (respectively) is applied. Note: Preliminary When a 16x PLL is used, the FRC frequency must not be tuned to a frequency greater than 7.5 MHz. 2004 Microchip Technology Inc. dsPIC30F TABLE 21-3: TUN<3:0> Bits 0111 0110 0101 0100 0011 0010 0001 0000 1111 1110 1101 1100 1011 1010 1001 1000 FRC TUNING 21.2.7 The Fail-Safe Clock Monitor (FSCM) allows the device to continue to operate even in the event of an oscillator failure. The FSCM function is enabled by appropriately programming the FCKSM configuration bits (Clock Switch and Monitor Selection bits) in the FOSC device configuration register. If the FSCM function is enabled, the LPRC Internal oscillator will run at all times (except during Sleep mode) and will not be subject to control by the SWDTEN bit. FRC Frequency + 10.5% + 9.0% + 7.5% + 6.0% + 4.5% + 3.0% + 1.5% Center Frequency (oscillator is running at calibrated frequency) - 1.5% - 3.0% - 4.5% - 6.0% - 7.5% - 9.0% - 10.5% - 12.0% In the event of an oscillator failure, the FSCM will generate a Clock Failure Trap event and will switch the system clock over to the FRC oscillator. The user will then have the option to either attempt to restart the oscillator or execute a controlled shutdown. The user may decide to treat the Trap as a warm Reset by simply loading the Reset address into the oscillator fail trap vector. In this event, the CF (Clock Fail) status bit (OSCCON<3>) is also set whenever a clock failure is recognized. In the event of a clock failure, the WDT is unaffected and continues to run on the LPRC clock. . Note: 21.2.6 FAIL-SAFE CLOCK MONITOR Some devices have different FRC oscillator tuning range. Please refer to the specific device data sheets for details. LOW POWER RC OSCILLATOR (LPRC) The LPRC oscillator is a component of the Watchdog Timer (WDT) and oscillates at a nominal frequency of 512 kHz. The LPRC oscillator is the clock source for the Power-up Timer (PWRT) circuit, WDT and clock monitor circuits. It may also be used to provide a low frequency clock source option for applications where power consumption is critical, and timing accuracy is not required. The LPRC oscillator is always enabled at a Power-on Reset, because it is the clock source for the PWRT. After the PWRT expires, the LPRC oscillator will remain ON if one of the following is TRUE: * The Fail-Safe Clock Monitor is enabled * The WDT is enabled * The LPRC oscillator is selected as the system clock via the COSC<1:0> control bits in the OSCCON register If one of the above conditions is not true, the LPRC will shut-off after the PWRT expires. If the oscillator has a very slow start-up time coming out of POR, BOR or Sleep, it is possible that the PWRT timer will expire before the oscillator has started. In such cases, the FSCM will be activated and the FSCM will initiate a Clock Failure Trap, and the COSC<1:0> bits are loaded with FRC oscillator selection. This will effectively shut-off the original oscillator that was trying to start. The user may detect this situation and restart the oscillator in the Clock Fail Trap ISR. Upon a clock failure detection, the FSCM module will initiate a clock switch to the FRC Oscillator as follows: 1. 2. 3. The COSC bits (OSCCON<13:12>) are loaded with the FRC Oscillator selection value. CF bit is set (OSCCON<3>). OSWEN control bit (OSCCON<0>) is cleared. For the purpose of clock switching, the clock sources are sectioned into four groups: 1. 2. 3. 4. Primary Secondary Internal FRC Internal LPRC The user can switch between these functional groups, but cannot switch between options within a group. If the primary group is selected, then the choice within the group is always determined by the FPR<3:0> configuration bits. Note 1: OSC2 pin function is determined by the Primary Oscillator mode selection (FPR<3:0>). 2: Note that OSC1 pin cannot be used as an I/O pin, even if the secondary oscillator or an internal clock source is selected at all times. 2004 Microchip Technology Inc. Preliminary DS70082G-page 155 dsPIC30F The OSCCON register holds the CONTROL and STATUS bits related to clock switching. 21.2.8 * COSC<1:0>: Read only status bits always reflect the current oscillator group in effect. * NOSC<1:0>: Control bits which are written to indicate the new oscillator group of choice. - On POR and BOR, COSC<1:0> and NOSC<1:0> are both loaded with the Configuration bit values FOS<1:0>. * LOCK: The LOCK status bit indicates a PLL lock. * CF: Read only status bit indicating if a clock fail detect has occurred. * OSWEN: Control bit changes from a `0' to a `1' when a clock transition sequence is initiated. Clearing the OSWEN control bit will abort a clock transition in progress (used for hang-up situations). A write to the OSCCON register is intentionally made difficult because it controls clock switching and clock scaling. If configuration bits FCKSM<1:0> = 1x, then the clock switching and fail-safe clock monitor functions are disabled. This is the default configuration bit setting. PROTECTION AGAINST ACCIDENTAL WRITES TO OSCCON To write to the OSCCON low byte, the following code sequence must be executed without any other instructions in between: * Byte Write "0x46" to OSCCON low * Byte Write "0x57" to OSCCON low Byte Write is allowed for one instruction cycle. Write the desired value or use bit manipulation instruction. To write to the OSCCON high byte, the following instructions must be executed without any other instructions in between: * Byte Write "0x78" to OSCCON high * Byte Write "0x9A" to OSCCON high Byte Write is allowed for one instruction cycle. Write the desired value or use bit manipulation instruction. If clock switching is disabled, then the FOS<1:0> and FPR<3:0> bits directly control the oscillator selection and the COSC<1:0> bits do not control the clock selection. However, these bits will reflect the clock source selection. Note: The application should not attempt to switch to a clock of frequency lower than 100 KHz when the fail-safe clock monitor is enabled. If such clock switching is performed, the device may generate an oscillator fail trap and switch to the Fast RC oscillator. DS70082G-page 156 Preliminary 2004 Microchip Technology Inc. dsPIC30F 21.3 Reset The dsPIC30F differentiates between various kinds of Reset: a) b) c) d) e) f) g) h) Power-on Reset (POR) MCLR Reset during normal operation MCLR Reset during Sleep Watchdog Timer (WDT) Reset (during normal operation) Programmable Brown-out Reset (BOR) RESET Instruction Reset cause by trap lockup (TRAPR) Reset caused by illegal opcode, or by using an uninitialized W register as an address pointer (IOPUWR) FIGURE 21-2: Different registers are affected in different ways by various Reset conditions. Most registers are not affected by a WDT wake-up, since this is viewed as the resumption of normal operation. Status bits from the RCON register are set or cleared differently in different Reset situations, as indicated in Table 21-4. These bits are used in software to determine the nature of the Reset. A block diagram of the on-chip Reset circuit is shown in Figure 21-2. A MCLR noise filter is provided in the MCLR Reset path. The filter detects and ignores small pulses. Internally generated RESETS do not drive MCLR pin low. RESET SYSTEM BLOCK DIAGRAM RESET Instruction Digital Glitch Filter MCLR Sleep or Idle WDT Module POR VDD Rise Detect S VDD Brown-out Reset BOR BOREN R Q SYSRST TRAP Conflict Illegal Opcode/ Uninitialized W Register 21.3.1 POR: POWER-ON RESET A power-on event will generate an internal POR pulse when a VDD rise is detected. The Reset pulse will occur at the POR circuit threshold voltage (VPOR), which is nominally 1.85V. The device supply voltage characteristics must meet specified starting voltage and rise rate requirements. The POR pulse will reset a POR timer and place the device in the Reset state. The POR also selects the device clock source identified by the oscillator configuration fuses. The POR circuit inserts a small delay, TPOR, which is nominally 10 s and ensures that the device bias circuits are stable. Furthermore, a user selected powerup time-out (TPWRT) is applied. The TPWRT parameter is based on device configuration bits and can be 0 ms (no delay), 4 ms, 16 ms or 64 ms. The total delay is at device power-up TPOR + TPWRT. When these delays have expired, SYSRST will be negated on the next leading edge of the Q1 clock, and the PC will jump to the Reset vector. The timing for the SYSRST signal is shown in Figure 21-3 through Figure 21-5. 2004 Microchip Technology Inc. Preliminary DS70082G-page 157 dsPIC30F FIGURE 21-3: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD) VDD MCLR INTERNAL POR TOST OST TIME-OUT TPWRT PWRT TIME-OUT INTERNAL Reset TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO VDD): CASE 1 FIGURE 21-4: VDD MCLR INTERNAL POR TOST OST TIME-OUT TPWRT PWRT TIME-OUT INTERNAL Reset TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO VDD): CASE 2 FIGURE 21-5: VDD MCLR INTERNAL POR TOST OST TIME-OUT TPWRT PWRT TIME-OUT INTERNAL Reset DS70082G-page 158 Preliminary 2004 Microchip Technology Inc. dsPIC30F 21.3.1.1 POR with Long Crystal Start-up Time (with FSCM Enabled) The oscillator start-up circuitry is not linked to the POR circuitry. Some crystal circuits (especially low frequency crystals) will have a relatively long start-up time. Therefore, one or more of the following conditions is possible after the POR timer and the PWRT have expired: A BOR will generate a Reset pulse which will reset the device. The BOR will select the clock source, based on the device configuration bit values (FOS<1:0> and FPR<3:0>). Furthermore, if an Oscillator mode is selected, the BOR will activate the Oscillator Start-up Timer (OST). The system clock is held until OST expires. If the PLL is used, then the clock will be held until the LOCK bit (OSCCON<5>) is "1". * The oscillator circuit has not begun to oscillate. * The oscillator start-up timer has NOT expired (if a crystal oscillator is used). * The PLL has not achieved a LOCK (if PLL is used). Concurrently, the POR time-out (TPOR) and the PWRT time-out (TPWRT) will be applied before the internal Reset is released. If TPWRT = 0 and a crystal oscillator is being used, then a nominal delay of TFSCM = 100 s is applied. The total delay in this case is (TPOR + TFSCM). If the FSCM is enabled and one of the above conditions is true, then a Clock Failure Trap will occur. The device will automatically switch to the FRC oscillator and the user can switch to the desired crystal oscillator in the trap ISR. The BOR status bit (RCON<1>) will be set to indicate that a BOR has occurred. The BOR circuit, if enabled, will continue to operate while in Sleep or Idle modes and will reset the device should VDD fall below the BOR threshold voltage. 21.3.1.2 FIGURE 21-6: Operating without FSCM and PWRT If the FSCM is disabled and the Power-up Timer (PWRT) is also disabled, then the device will exit rapidly from Reset on power-up. If the clock source is FRC, LPRC, EXTRC or EC, it will be active immediately. VDD D If the FSCM is disabled and the system clock has not started, the device will be in a frozen state at the Reset vector until the system clock starts. From the user's perspective, the device will appear to be in Reset until a system clock is available. 21.3.2 C 3: R1 should be suitably chosen so as to limit any current flowing into MCLR from external capacitor C, in the event of MCLR/VPP pin breakdown due to Electrostatic Discharge (ESD) or Electrical Overstress (EOS). Note: The BOR voltage trip points indicated here are nominal values provided for design guidance only. 2004 Microchip Technology Inc. dsPIC30F 2: R should be suitably chosen so as to make sure that the voltage drop across R does not violate the device's electrical specification. The BOR module allows selection of one of the following voltage trip points: Note: MCLR Note 1: External Power-on Reset circuit is required only if the VDD power-up slope is too slow. The diode D helps discharge the capacitor quickly when VDD powers down. BOR: PROGRAMMABLE BROWN-OUT RESET 2.0V 2.7V 4.2V 4.5V R R1 The BOR (Brown-out Reset) module is based on an internal voltage reference circuit. The main purpose of the BOR module is to generate a device Reset when a brown-out condition occurs. Brown-out conditions are generally caused by glitches on the AC mains (i.e., missing portions of the AC cycle waveform due to bad power transmission lines or voltage sags due to excessive current draw when a large inductive load is turned on). * * * * EXTERNAL POWER-ON RESET CIRCUIT (FOR SLOW VDD POWER-UP) Preliminary Dedicated supervisory devices, such as the MCP1XX and MCP8XX, may also be used as an external Power-on Reset circuit. DS70082G-page 159 dsPIC30F Table 21-4 shows the Reset conditions for the RCON Register. Since the control bits within the RCON register are R/W, the information in the table implies that all the bits are negated prior to the action specified in the condition column. TABLE 21-4: INITIALIZATION CONDITION FOR RCON REGISTER CASE 1 Condition Power-on Reset Program Counter 0x000000 TRAPR IOPUWR EXTR SWR WDTO 0 0 0 0 0 Idle Sleep 0 0 POR BOR 1 1 Brown-out Reset 0x000000 0 0 0 0 0 0 0 0 1 MCLR Reset during normal operation 0x000000 0 0 1 0 0 0 0 0 0 Software Reset during normal operation 0x000000 0 0 0 1 0 0 0 0 0 MCLR Reset during Sleep 0x000000 0 0 1 0 0 0 1 0 0 MCLR Reset during Idle 0x000000 0 0 1 0 0 1 0 0 0 WDT Time-out Reset 0x000000 0 0 0 0 1 0 0 0 0 PC + 2 0 0 0 0 1 0 1 0 0 (1) PC + 2 0 0 0 0 0 0 1 0 0 Clock Failure Trap 0x000004 0 0 0 0 0 0 0 0 0 Trap Reset 0x000000 1 0 0 0 0 0 0 0 0 Illegal Operation Trap 0x000000 0 1 0 0 0 0 0 0 0 WDT Wake-up Interrupt Wake-up from Sleep Legend: Note 1: u = unchanged, x = unknown, - = unimplemented bit, read as '0' When the wake-up is due to an enabled interrupt, the PC is loaded with the corresponding interrupt vector. Table 21-5 shows a second example of the bit conditions for the RCON Register. In this case, it is not assumed the user has set/cleared specific bits prior to action specified in the condition column. TABLE 21-5: INITIALIZATION CONDITION FOR RCON REGISTER CASE 2 Condition Program Counter TRAPR IOPUWR EXTR SWR WDTO Idle Sleep 0 0 POR BOR Power-on Reset 0x000000 Brown-out Reset 0x000000 u u u u u u u 0 1 MCLR Reset during normal operation 0x000000 u u 1 0 0 0 0 u u Software Reset during normal operation 0x000000 u u 0 1 0 0 0 u u 0 0 0 0 0 1 1 MCLR Reset during Sleep 0x000000 u u 1 u 0 0 1 u u MCLR Reset during Idle 0x000000 u u 1 u 0 1 0 u u WDT Time-out Reset 0x000000 u u 0 0 1 0 0 u u PC + 2 u u u u 1 u 1 u u Interrupt Wake-up from Sleep PC + 2 (1) u u u u u u 1 u u Clock Failure Trap 0x000004 u u u u u u u u u Trap Reset 0x000000 1 u u u u u u u u Illegal Operation Reset 0x000000 u 1 u u u u u u u WDT Wake-up Legend: Note 1: u = unchanged, x = unknown, - = unimplemented bit, read as '0' When the wake-up is due to an enabled interrupt, the PC is loaded with the corresponding interrupt vector. DS70082G-page 160 Preliminary 2004 Microchip Technology Inc. dsPIC30F 21.4 21.4.1 Watchdog Timer (WDT) 21.6 WATCHDOG TIMER OPERATION The primary function of the Watchdog Timer (WDT) is to reset the processor in the event of a software malfunction. The WDT is a free running timer, which runs off an on-chip RC oscillator, requiring no external component. Therefore, the WDT timer will continue to operate even if the main processor clock (e.g., the crystal oscillator) fails. 21.4.2 ENABLING AND DISABLING THE WDT The Watchdog Timer can be "Enabled" or "Disabled" only through a configuration bit (FWDTEN) in the configuration register FWDT. Setting FWDTEN = 1 enables the Watchdog Timer. The enabling is done when programming the device. By default, after chip-erase, FWDTEN bit = 1. Any device programmer capable of programming dsPIC30F devices allows programming of this and other configuration bits. If enabled, the WDT will increment until it overflows or "times out". A WDT time-out will force a device Reset (except during Sleep). To prevent a WDT time-out, the user must clear the Watchdog Timer using a CLRWDT instruction. If a WDT times out during Sleep, the device will wakeup. The WDTO bit in the RCON register will be cleared to indicate a wake-up resulting from a WDT time-out. Setting FWDTEN = 0 allows user software to enable/ disable the Watchdog Timer via the SWDTEN (RCON<5>) control bit. 21.5 The Low Voltage Detect (LVD) module is used to detect when the VDD of the device drops below a threshold value VLVD, which is determined by the LVDL<3:0> bits (RCON<11:8>) and is thus user-programmable. The internal voltage reference circuitry requires a nominal amount of time to stabilize, and the BGST bit (RCON<13>) indicates when the voltage reference has stabilized. In some devices, the LVD threshold voltage may be applied externally on the LVDIN pin. The LVD module is enabled by setting the LVDEN bit (RCON<12>). 2004 Microchip Technology Inc. There are two power saving states that can be entered through the execution of a special instruction, PWRSAV. These are: Sleep and Idle. The format of the PWRSAV instruction is as follows: PWRSAV <parameter>, where `parameter' defines Idle or Sleep mode. 21.6.1 SLEEP MODE In Sleep mode, the clock to the CPU and peripherals is shutdown. If an on-chip oscillator is being used, it is shutdown. The fail-safe clock monitor is not functional during Sleep, since there is no clock to monitor. However, LPRC clock remains active if WDT is operational during Sleep. The Brown-out protection circuit and the Low Voltage Detect circuit, if enabled, will remain functional during Sleep. The processor wakes up from Sleep if at least one of the following conditions has occurred: * any interrupt that is individually enabled and meets the required priority level * any Reset (POR, BOR and MCLR) * WDT time-out On waking up from Sleep mode, the processor will restart the same clock that was active prior to entry into Sleep mode. When clock switching is enabled, bits COSC<1:0> will determine the oscillator source that will be used on wake-up. If clock switch is disabled, then there is only one system clock. Note: Low Voltage Detect Power Saving Modes If a POR or BOR occurred, the selection of the oscillator is based on the FOS<1:0> and FPR<3:0> configuration bits. If the clock source is an oscillator, the clock to the device will be held off until OST times out (indicating a stable oscillator). If PLL is used, the system clock is held off until LOCK = 1 (indicating that the PLL is stable). In either case, TPOR, TLOCK and TPWRT delays are applied. If EC, FRC, LPRC or EXTRC oscillators are used, then a delay of TPOR (~ 10 s) is applied. This is the smallest delay possible on wake-up from Sleep. Moreover, if LP oscillator was active during Sleep, and LP is the oscillator used on wake-up, then the start-up delay will be equal to TPOR. PWRT delay and OST timer delay are not applied. In order to have the smallest possible start-up delay when waking up from Sleep, one of these faster wake-up options should be selected before entering Sleep. Preliminary DS70082G-page 161 dsPIC30F Any interrupt that is individually enabled (using the corresponding IE bit) and meets the prevailing priority level will be able to wake-up the processor. The processor will process the interrupt and branch to the ISR. The Sleep status bit in RCON register is set upon wake-up. Note: In spite of various delays applied (TPOR, TLOCK and TPWRT), the crystal oscillator (and PLL) may not be active at the end of the time-out (e.g., for low frequency crystals. In such cases), if FSCM is enabled, then the device will detect this as a clock failure and process the Clock Failure Trap, the FRC oscillator will be enabled, and the user will have to re-enable the crystal oscillator. If FSCM is not enabled, then the device will simply suspend execution of code until the clock is stable, and will remain in Sleep until the oscillator clock has started. All RESETS will wake-up the processor from Sleep mode. Any Reset, other than POR, will set the Sleep status bit. In a POR, the Sleep bit is cleared. If Watchdog Timer is enabled, then the processor will wake-up from Sleep mode upon WDT time-out. The Sleep and WDTO status bits are both set. 21.6.2 IDLE MODE Any interrupt that is individually enabled (using IE bit) and meets the prevailing priority level will be able to wake-up the processor. The processor will process the interrupt and branch to the ISR. The Idle status bit in RCON register is set upon wake-up. Any Reset, other than POR, will set the Idle status bit. On a POR, the Idle bit is cleared. If Watchdog Timer is enabled, then the processor will wake-up from Idle mode upon WDT time-out. The Idle and WDTO status bits are both set. Unlike wake-up from Sleep, there are no time delays involved in wake-up from Idle. 21.7 The configuration bits in each device configuration register specify some of the device modes and are programmed by a device programmer, or by using the In-Circuit Serial ProgrammingTM (ICSPTM) feature of the device. Each device configuration register is a 24-bit register, but only the lower 16 bits of each register are used to hold configuration data. There are four device configuration registers available to the user: FOSC (0xF80000): Oscillator Configuration Register FWDT (0xF80002): Watchdog Timer Configuration Register FBORPOR (0xF80004): BOR and POR Configuration Register FGS (0xF8000A): General Code Segment Configuration Register 1. 2. 3. In Idle mode, the clock to the CPU is shutdown while peripherals keep running. Unlike Sleep mode, the clock source remains active. Several peripherals have a control bit in each module, that allows them to operate during Idle. LPRC fail-safe clock remains active if clock failure detect is enabled. The processor wakes up from Idle if at least one of the following conditions is true: * on any interrupt that is individually enabled (IE bit is `1') and meets the required priority level * on any Reset (POR, BOR, MCLR) * on WDT time-out 4. The placement of the configuration bits is automatically handled when you select the device in your device programmer. The desired state of the configuration bits may be specified in the source code (dependent on the language tool used), or through the programming interface. After the device has been programmed, the application software may read the configuration bit values through the table read instructions. For additional information, please refer to the programming specifications of the device. Note: Upon wake-up from Idle mode, the clock is re-applied to the CPU and instruction execution begins immediately, starting with the instruction following the PWRSAV instruction. DS70082G-page 162 Device Configuration Registers Preliminary If the code protection configuration fuse bits (FGS<GCP> and FGS<GWRP>) have been programmed, an erase of the entire code-protected device is only possible at voltages VDD 4.5V. 2004 Microchip Technology Inc. dsPIC30F 21.8 In-Circuit Debugger This gives rise to two possibilities: When MPLAB ICD2 is selected as a Debugger, the InCircuit Debugging functionality is enabled. This function allows simple debugging functions when used with MPLAB IDE. When the device has this feature enabled, some of the resources are not available for general use. These resources include the first 80 bytes of Data RAM and two I/O pins. 1. 2. One of four pairs of Debug I/O pins may be selected by the user using configuration options in MPLAB IDE. These pin pairs are named EMUD/EMUC, EMUD1/ EMUC1, EMUD2/EMUC2 and MUD3/EMUC3. If EMUD/EMUC is selected as the Debug I/O pin pair, then only a 5-pin interface is required, as the EMUD and EMUC pin functions are multiplexed with the PGD and PGC pin functions in all dsPIC30F devices. If EMUD1/EMUC1, EMUD2/EMUC2 or EMUD3/ EMUC3 is selected as the Debug I/O pin pair, then a 7-pin interface is required, as the EMUDx/EMUCx pin functions (x = 1, 2 or 3) are not multiplexed with the PGD and PGC pin functions. In each case, the selected EMUD pin is the Emulation/ Debug Data line, and the EMUC pin is the Emulation/ Debug Clock line. These pins will interface to the MPLAB ICD 2 module available from Microchip. The selected pair of Debug I/O pins is used by MPLAB ICD 2 to send commands and receive responses, as well as to send and receive data. To use the In-Circuit Debugger function of the device, the design must implement ICSP connections to MCLR, VDD, VSS, PGC, PGD, and the selected EMUDx/EMUCx pin pair. 2004 Microchip Technology Inc. Preliminary DS70082G-page 163 0740 RCON TRAPR Bit 15 DS70082G-page 164 Bit 13 -- Bit 11 Bit 9 -- MCLREN -- -- -- F80004 F8000A FGS -- -- -- -- -- -- -- Bit 13 -- -- -- -- Bit 12 -- -- -- -- Bit 11 Bit 7 Bit 6 SWR -- PWMPIN -- -- Bit 10 POST<1:0> EXTR Bit 5 -- -- HPOL Bit 4 -- WDTO Bit 8 -- LPOL -- FOS<1:0> Bit 9 LOCK SWDTEN Bit 3 -- BOREN -- -- Bit 7 CF Sleep -- -- -- -- Bit 6 -- Idle Bit 2 Bit 1 Bit 0 -- Bit 4 -- BORV<1:0> -- Reset State Depends on type of Reset. -- -- Bit 3 Bit 1 -- -- Note: Refer to dsPIC30F Family Reference Manual (DS70046) for descriptions of register bit fields. Bit 0 GCP GWRP FPWRT<1:0> FWPSB<3:0> FPR<3:0> Bit 2 OSWEN Depends on configuration bits. POR FWPSA<1:0> -- Bit 5 LPOSCEN BOR The control bits in the OSCCON and FOSC registers may differ from those shown above. Please refer to the specific device data sheet for details. FWDTEN -- F80002 FWDT Bit 14 FCKSM<1:0> Bit 15 FBORPOR Bits 23-16 Bit 8 NOSC<1:0> LVDL<3:0> Bit 10 DEVICE CONFIGURATION REGISTER MAP Addr. -- Note: Bit 12 LVDEN COSC<1:0> BGST F80000 FOSC File Name TABLE 21-7: -- IOPUWR Bit 14 SYSTEM INTEGRATION REGISTER MAP OSCCON 0742 -- Legend: u = uninitialized bit Addr. SFR Name TABLE 21-6: dsPIC30F Preliminary 2004 Microchip Technology Inc. dsPIC30F 22.0 INSTRUCTION SET SUMMARY Note: This data sheet summarizes features of this group of dsPIC30F devices and is not intended to be a complete reference source. For more information on the CPU, peripherals, register descriptions and general device functionality, refer to the dsPIC30F Family Reference Manual (DS70046). For more information on the device instruction set and programming, refer to the dsPIC30F Programmer's Reference Manual (DS70030). The dsPIC30F instruction set adds many enhancements to the previous PICmicro(R) instruction sets, while maintaining an easy migration from PICmicro instruction sets. Most instructions are a single program memory word (24-bits). Only three instructions require two program memory locations. Each single-word instruction is a 24-bit word divided into an 8-bit opcode which specifies the instruction type, and one or more operands which further specify the operation of the instruction. The instruction set is highly orthogonal and is grouped into five basic categories: * * * * * Word or byte-oriented operations Bit-oriented operations Literal operations DSP operations Control operations * The W register (with or without an address modifier) or file register (specified by the value of 'Ws' or 'f') * The bit in the W register or file register (specified by a literal value, or indirectly by the contents of register 'Wb') The literal instructions that involve data movement may use some of the following operands: * A literal value to be loaded into a W register or file register (specified by the value of 'k') * The W register or file register where the literal value is to be loaded (specified by 'Wb' or 'f') However, literal instructions that involve arithmetic or logical operations use some of the following operands: * The first source operand, which is a register 'Wb' without any address modifier * The second source operand, which is a literal value * The destination of the result (only if not the same as the first source operand), which is typically a register 'Wd' with or without an address modifier The MAC class of DSP instructions may use some of the following operands: Table 22-1 shows the general symbols used in describing the instructions. The dsPIC30F instruction set summary in Table 22-2 lists all the instructions along with the status flags affected by each instruction. Most word or byte-oriented W register instructions (including barrel shift instructions) have three operands: * The first source operand, which is typically a register 'Wb' without any address modifier * The second source operand, which is typically a register 'Ws' with or without an address modifier * The destination of the result, which is typically a register 'Wd' with or without an address modifier However, word or byte-oriented file register instructions have two operands: * The file register specified by the value 'f' * The destination, which could either be the file register 'f' or the W0 register, which is denoted as 'WREG' 2004 Microchip Technology Inc. Most bit oriented instructions (including simple rotate/ shift instructions) have two operands: * The accumulator (A or B) to be used (required operand) * The W registers to be used as the two operands * The X and Y address space pre-fetch operations * The X and Y address space pre-fetch destinations * The accumulator write back destination The other DSP instructions do not involve any multiplication, and may include: * The accumulator to be used (required) * The source or destination operand (designated as Wso or Wdo, respectively) with or without an address modifier * The amount of shift, specified by a W register 'Wn' or a literal value The control instructions may use some of the following operands: * A program memory address * The mode of the Table Read and Table Write instructions Preliminary DS70082G-page 165 dsPIC30F All instructions are a single word, except for certain double-word instructions, which were made doubleword instructions so that all the required information is available in these 48-bits. In the second word, the 8 MSb's are 0's. If this second word is executed as an instruction (by itself), it will execute as a NOP. Most single word instructions are executed in a single instruction cycle, unless a conditional test is true or the program counter is changed as a result of the instruction. In these cases, the execution takes two instruction cycles with the additional instruction cycle(s) executed as a NOP. Notable exceptions are the BRA (unconditional/computed branch), indirect CALL/GOTO, all TABLE 22-1: Table Reads and Writes and RETURN/RETFIE instructions, which are single word instructions, but take two or three cycles. Certain instructions that involve skipping over the subsequent instruction, require either two or three cycles if the skip is performed, depending on whether the instruction being skipped is a single word or two-word instruction. Moreover, double-word moves require two cycles. The double-word instructions execute in two instruction cycles. Note: For more details on the instruction set, refer to the Programmer's Reference Manual. SYMBOLS USED IN OPCODE DESCRIPTIONS Field #text (text) [text] { } <n:m> .b .d .S .w Acc AWB bit4 C, DC, N, OV, Z Expr f lit1 lit4 lit5 lit8 lit10 lit14 lit16 lit23 None OA, OB, SA, SB PC Slit10 Slit16 Slit6 Wb Wd Wdo Wm,Wn DS70082G-page 166 Description Means literal defined by "text" Means "content of text" Means "the location addressed by text" Optional field or operation Register bit field Byte mode selection Double-word mode selection Shadow register select Word mode selection (default) One of two accumulators {A, B} Accumulator write back destination address register {W13, [W13]+=2} 4-bit bit selection field (used in word addressed instructions) {0...15} MCU status bits: Carry, Digit Carry, Negative, Overflow, Zero Absolute address, label or expression (resolved by the linker) File register address {0x0000...0x1FFF} 1-bit unsigned literal {0,1} 4-bit unsigned literal {0...15} 5-bit unsigned literal {0...31} 8-bit unsigned literal {0...255} 10-bit unsigned literal {0...255} for Byte mode, {0:1023} for Word mode 14-bit unsigned literal {0...16384} 16-bit unsigned literal {0...65535} 23-bit unsigned literal {0...8388608}; LSB must be 0 Field does not require an entry, may be blank DSP status bits: AccA Overflow, AccB Overflow, AccA Saturate, AccB Saturate Program Counter 10-bit signed literal {-512...511} 16-bit signed literal {-32768...32767} 6-bit signed literal {-16...16} Base W register {W0..W15} Destination W register { Wd, [Wd], [Wd++], [Wd--], [++Wd], [--Wd] } Destination W register { Wnd, [Wnd], [Wnd++], [Wnd--], [++Wnd], [--Wnd], [Wnd+Wb] } Dividend, Divisor working register pair (direct addressing) Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 22-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED) Field Wm*Wm Wm*Wn Wn Wnd Wns WREG Ws Wso Wx Wxd Wy Wyd 2004 Microchip Technology Inc. Description Multiplicand and Multiplier working register pair for Square instructions {W4*W4,W5*W5,W6*W6,W7*W7} Multiplicand and Multiplier working register pair for DSP instructions {W4*W5,W4*W6,W4*W7,W5*W6,W5*W7,W6*W7} One of 16 working registers {W0..W15} One of 16 destination working registers {W0..W15} One of 16 source working registers {W0..W15} W0 (working register used in file register instructions) Source W register { Ws, [Ws], [Ws++], [Ws--], [++Ws], [--Ws] } Source W register { Wns, [Wns], [Wns++], [Wns--], [++Wns], [--Wns], [Wns+Wb] } X data space pre-fetch address register for DSP instructions {[W8]+=6, [W8]+=4, [W8]+=2, [W8], [W8]-=6, [W8]-=4, [W8]-=2, [W9]+=6, [W9]+=4, [W9]+=2, [W9], [W9]-=6, [W9]-=4, [W9]-=2, [W9+W12],none} X data space pre-fetch destination register for DSP instructions {W4..W7} Y data space pre-fetch address register for DSP instructions {[W10]+=6, [W10]+=4, [W10]+=2, [W10], [W10]-=6, [W10]-=4, [W10]-=2, [W11]+=6, [W11]+=4, [W11]+=2, [W11], [W11]-=6, [W11]-=4, [W11]-=2, [W11+W12], none} Y data space pre-fetch destination register for DSP instructions {W4..W7} Preliminary DS70082G-page 167 dsPIC30F TABLE 22-2: Base Instr # 1 2 3 4 5 6 INSTRUCTION SET OVERVIEW Assembly Mnemonic ADD ADDC AND ASR BCLR BRA 7 BSET 8 BSW 9 BTG 10 BTSC Assembly Syntax Description # of words # of cycles Status Flags Affected ADD Acc Add Accumulators 1 1 OA,OB,SA,SB ADD f f = f + WREG 1 1 C,DC,N,OV,Z ADD f,WREG WREG = f + WREG 1 1 C,DC,N,OV,Z ADD #lit10,Wn Wd = lit10 + Wd 1 1 C,DC,N,OV,Z ADD Wb,Ws,Wd Wd = Wb + Ws 1 1 C,DC,N,OV,Z ADD Wb,#lit5,Wd Wd = Wb + lit5 1 1 C,DC,N,OV,Z ADD Wso,#Slit4,Acc 16-bit Signed Add to Accumulator 1 1 OA,OB,SA,SB ADDC f f = f + WREG + (C) 1 1 C,DC,N,OV,Z ADDC f,WREG WREG = f + WREG + (C) 1 1 C,DC,N,OV,Z ADDC #lit10,Wn Wd = lit10 + Wd + (C) 1 1 C,DC,N,OV,Z ADDC Wb,Ws,Wd Wd = Wb + Ws + (C) 1 1 C,DC,N,OV,Z ADDC Wb,#lit5,Wd Wd = Wb + lit5 + (C) 1 1 C,DC,N,OV,Z AND f f = f .AND. WREG 1 1 N,Z AND f,WREG WREG = f .AND. WREG 1 1 N,Z AND #lit10,Wn Wd = lit10 .AND. Wd 1 1 N,Z AND Wb,Ws,Wd Wd = Wb .AND. Ws 1 1 N,Z AND Wb,#lit5,Wd Wd = Wb .AND. lit5 1 1 N,Z ASR f f = Arithmetic Right Shift f 1 1 C,N,OV,Z ASR f,WREG WREG = Arithmetic Right Shift f 1 1 C,N,OV,Z ASR Ws,Wd Wd = Arithmetic Right Shift Ws 1 1 C,N,OV,Z ASR Wb,Wns,Wnd Wnd = Arithmetic Right Shift Wb by Wns 1 1 N,Z ASR Wb,#lit5,Wnd Wnd = Arithmetic Right Shift Wb by lit5 1 1 N,Z BCLR f,#bit4 Bit Clear f 1 1 None BCLR Ws,#bit4 Bit Clear Ws 1 1 None BRA C,Expr Branch if Carry 1 1 (2) None BRA GE,Expr Branch if greater than or equal 1 1 (2) None BRA GEU,Expr Branch if unsigned greater than or equal 1 1 (2) None BRA GT,Expr Branch if greater than 1 1 (2) None BRA GTU,Expr Branch if unsigned greater than 1 1 (2) None BRA LE,Expr Branch if less than or equal 1 1 (2) None BRA LEU,Expr Branch if unsigned less than or equal 1 1 (2) None BRA LT,Expr Branch if less than 1 1 (2) None BRA LTU,Expr Branch if unsigned less than 1 1 (2) None BRA N,Expr Branch if Negative 1 1 (2) None BRA NC,Expr Branch if Not Carry 1 1 (2) None BRA NN,Expr Branch if Not Negative 1 1 (2) None BRA NOV,Expr Branch if Not Overflow 1 1 (2) None BRA NZ,Expr Branch if Not Zero 1 1 (2) None BRA OA,Expr Branch if accumulator A overflow 1 1 (2) None BRA OB,Expr Branch if accumulator B overflow 1 1 (2) None BRA OV,Expr Branch if Overflow 1 1 (2) None BRA SA,Expr Branch if accumulator A saturated 1 1 (2) None BRA SB,Expr Branch if accumulator B saturated 1 1 (2) None BRA Expr Branch Unconditionally 1 2 None BRA Z,Expr Branch if Zero 1 1 (2) None BRA Wn Computed Branch 1 2 None BSET f,#bit4 Bit Set f 1 1 None BSET Ws,#bit4 Bit Set Ws 1 1 None BSW.C Ws,Wb Write C bit to Ws<Wb> 1 1 None BSW.Z Ws,Wb Write Z bit to Ws<Wb> 1 1 None BTG f,#bit4 Bit Toggle f 1 1 None BTG Ws,#bit4 Bit Toggle Ws 1 1 None BTSC f,#bit4 Bit Test f, Skip if Clear 1 1 None (2 or 3) BTSC Ws,#bit4 Bit Test Ws, Skip if Clear 1 1 None (2 or 3) DS70082G-page 168 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 22-2: Base Instr # 11 12 13 14 15 INSTRUCTION SET OVERVIEW (CONTINUED) Assembly Mnemonic BTSS BTST BTSTS CALL CLR Assembly Syntax Bit Test f, Skip if Set 1 1 None (2 or 3) BTSS Ws,#bit4 Bit Test Ws, Skip if Set 1 1 None (2 or 3) BTST f,#bit4 Bit Test f 1 1 Z BTST.C Ws,#bit4 Bit Test Ws to C 1 1 C BTST.Z Ws,#bit4 Bit Test Ws to Z 1 1 Z BTST.C Ws,Wb Bit Test Ws<Wb> to C 1 1 C BTST.Z Ws,Wb Bit Test Ws<Wb> to Z 1 1 Z BTSTS f,#bit4 Bit Test then Set f 1 1 Z BTSTS.C Ws,#bit4 Bit Test Ws to C, then Set 1 1 C BTSTS.Z Ws,#bit4 Bit Test Ws to Z, then Set 1 1 Z CALL lit23 Call subroutine 2 2 None CALL Wn Call indirect subroutine 1 2 None CLR f f = 0x0000 1 1 None CLR WREG WREG = 0x0000 1 1 None CLR Ws Ws = 0x0000 1 1 None CLR Acc,Wx,Wxd,Wy,Wyd,AWB OA,OB,SA,SB Clear Accumulator 1 1 Clear Watchdog Timer 1 1 WDTO,Sleep f f=f 1 1 N,Z COM f,WREG WREG = f 1 1 N,Z COM Ws,Wd Wd = Ws 1 1 N,Z CP f Compare f with WREG 1 1 C,DC,N,OV,Z CP Wb,#lit5 Compare Wb with lit5 1 1 C,DC,N,OV,Z CP Wb,Ws Compare Wb with Ws (Wb - Ws) 1 1 C,DC,N,OV,Z CP0 f Compare f with 0x0000 1 1 C,DC,N,OV,Z CP0 Ws Compare Ws with 0x0000 1 1 C,DC,N,OV,Z CLRWDT 17 COM COM 19 20 21 CP0 CP1 CPB Status Flags Affected f,#bit4 CLRWDT CP # of # of words cycles BTSS 16 18 Description CP1 f Compare f with 0xFFFF 1 1 C,DC,N,OV,Z CP1 Ws Compare Ws with 0xFFFF 1 1 C,DC,N,OV,Z CPB f Compare f with WREG, with Borrow 1 1 C,DC,N,OV,Z CPB Wb,#lit5 Compare Wb with lit5, with Borrow 1 1 C,DC,N,OV,Z CPB Wb,Ws Compare Wb with Ws, with Borrow (Wb - Ws - C) 1 1 C,DC,N,OV,Z 22 CPSEQ CPSEQ Wb, Wn Compare Wb with Wn, skip if = 1 1 None (2 or 3) 23 CPSGT CPSGT Wb, Wn Compare Wb with Wn, skip if > 1 1 None (2 or 3) 24 CPSLT CPSLT Wb, Wn Compare Wb with Wn, skip if < 1 1 None (2 or 3) 25 CPSNE CPSNE Wb, Wn Compare Wb with Wn, skip if 1 1 None (2 or 3) 26 DAW DAW Wn Wn = decimal adjust Wn 1 1 C 27 DEC DEC f f = f -1 1 1 C,DC,N,OV,Z DEC f,WREG WREG = f -1 1 1 C,DC,N,OV,Z DEC Ws,Wd Wd = Ws - 1 1 1 C,DC,N,OV,Z DEC2 f f = f -2 1 1 C,DC,N,OV,Z DEC2 f,WREG WREG = f -2 1 1 C,DC,N,OV,Z DEC2 Ws,Wd Wd = Ws - 2 1 1 C,DC,N,OV,Z 28 DEC2 29 DISI DISI #lit14 Disable Interrupts for k instruction cycles 1 1 None 30 DIV DIV.S Wm,Wn Signed 16/16-bit Integer Divide 1 18 N,Z,C, OV DIV.SD Wm,Wn Signed 32/16-bit Integer Divide 1 18 N,Z,C, OV DIV.U Wm,Wn Unsigned 16/16-bit Integer Divide 1 18 N,Z,C, OV DIV.UD Wm,Wn Unsigned 32/16-bit Integer Divide 1 18 N,Z,C, OV N,Z,C, OV 31 DIVF DIVF Wm,Wn Signed 16/16-bit Fractional Divide 1 18 32 DO DO #lit14,Expr Do code to PC+Expr, lit14+1 times 2 2 None DO Wn,Expr Do code to PC+Expr, (Wn)+1 times 2 2 None ED Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance ( no accumulate) 1 1 OA,OB,OAB, SA,SB,SAB 33 ED 2004 Microchip Technology Inc. Preliminary DS70082G-page 169 dsPIC30F TABLE 22-2: Base Instr # INSTRUCTION SET OVERVIEW (CONTINUED) Assembly Mnemonic Assembly Syntax 1 1 Status Flags Affected 35 EXCH EXCH Wns,Wnd Swap Wns with Wnd 1 1 None 36 FBCL FBCL Ws,Wnd Find Bit Change from Left (MSb) Side 1 1 C 37 FF1L FF1L Ws,Wnd Find First One from Left (MSb) Side 1 1 C 38 FF1R FF1R Ws,Wnd Find First One from Right (LSb) Side 1 1 C 39 GOTO GOTO Expr Go to address 2 2 None GOTO Wn Go to indirect 1 2 None 40 INC INC f f=f+1 1 1 C,DC,N,OV,Z INC f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z INC Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z INC2 f f=f+2 1 1 C,DC,N,OV,Z INC2 f,WREG WREG = f + 2 1 1 C,DC,N,OV,Z INC2 Ws,Wd Wd = Ws + 2 1 1 C,DC,N,OV,Z IOR f f = f .IOR. WREG 1 1 N,Z IOR f,WREG WREG = f .IOR. WREG 1 1 N,Z IOR #lit10,Wn Wd = lit10 .IOR. Wd 1 1 N,Z IOR Wb,Ws,Wd Wd = Wb .IOR. Ws 1 1 N,Z 42 43 IOR LAC Euclidean Distance # of cycles EDAC INC2 Wm*Wm,Acc,Wx,Wy,Wxd # of words 34 41 EDAC Description OA,OB,OAB, SA,SB,SAB IOR Wb,#lit5,Wd Wd = Wb .IOR. lit5 1 1 N,Z LAC Wso,#Slit4,Acc Load Accumulator 1 1 OA,OB,OAB, SA,SB,SAB 44 LNK LNK #lit14 Link frame pointer 1 1 None 45 LSR LSR f f = Logical Right Shift f 1 1 C,N,OV,Z LSR f,WREG WREG = Logical Right Shift f 1 1 C,N,OV,Z LSR Ws,Wd Wd = Logical Right Shift Ws 1 1 C,N,OV,Z LSR Wb,Wns,Wnd Wnd = Logical Right Shift Wb by Wns 1 1 N,Z 46 47 MAC MOV LSR Wb,#lit5,Wnd Wnd = Logical Right Shift Wb by lit5 1 1 N,Z MAC Wm*Wn,Acc,Wx,Wxd,Wy,Wyd, AWB Multiply and Accumulate 1 1 OA,OB,OAB, SA,SB,SAB MAC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square and Accumulate 1 1 OA,OB,OAB, SA,SB,SAB MOV f,Wn Move f to Wn 1 1 None MOV f Move f to f 1 1 N,Z MOV f,WREG Move f to WREG 1 1 N,Z MOV #lit16,Wn Move 16-bit literal to Wn 1 1 None MOV.b #lit8,Wn Move 8-bit literal to Wn 1 1 None MOV Wn,f Move Wn to f 1 1 None MOV Wso,Wdo Move Ws to Wd 1 1 None MOV WREG,f Move WREG to f 1 1 N,Z MOV.D Wns,Wd Move Double from W(ns):W(ns+1) to Wd 1 2 None MOV.D Ws,Wnd Move Double from Ws to W(nd+1):W(nd) 1 2 None 48 MOVSAC MOVSAC Acc,Wx,Wxd,Wy,Wyd,AWB Pre-fetch and store accumulator 1 1 None 49 MPY MPY Wm*Wn,Acc,Wx,Wxd,Wy,Wyd Multiply Wm by Wn to Accumulator 1 1 OA,OB,OAB, SA,SB,SAB MPY Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square Wm to Accumulator 1 1 OA,OB,OAB, SA,SB,SAB -(Multiply Wm by Wn) to Accumulator 50 MPY.N MPY.N Wm*Wn,Acc,Wx,Wxd,Wy,Wyd 1 1 None 51 MSC MSC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd, Multiply and Subtract from Accumulator AWB 1 1 OA,OB,OAB, SA,SB,SAB 52 MUL None MUL.SS Wb,Ws,Wnd {Wnd+1, Wnd} = signed(Wb) * signed(Ws) 1 1 MUL.SU Wb,Ws,Wnd {Wnd+1, Wnd} = signed(Wb) * unsigned(Ws) 1 1 None MUL.US Wb,Ws,Wnd {Wnd+1, Wnd} = unsigned(Wb) * signed(Ws) 1 1 None MUL.UU Wb,Ws,Wnd {Wnd+1, Wnd} = unsigned(Wb) * unsigned(Ws) 1 1 None MUL.SU Wb,#lit5,Wnd {Wnd+1, Wnd} = signed(Wb) * unsigned(lit5) 1 1 None MUL.UU Wb,#lit5,Wnd {Wnd+1, Wnd} = unsigned(Wb) * unsigned(lit5) 1 1 None MUL f W3:W2 = f * WREG 1 1 None DS70082G-page 170 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 22-2: Base Instr # 53 54 55 INSTRUCTION SET OVERVIEW (CONTINUED) Assembly Mnemonic NEG NOP POP Assembly Syntax NEG Acc PUSH PWRSAV 58 RCALL 59 REPEAT 1 1 1 C,DC,N,OV,Z NEG Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z NOP No Operation 1 1 None NOPR No Operation 1 1 None None POP f Pop f from top-of-stack (TOS) 1 1 POP Wdo Pop from top-of-stack (TOS) to Wdo 1 1 None POP.D Wnd Pop from top-of-stack (TOS) to W(nd):W(nd+1) 1 2 None Pop Shadow Registers 1 1 All PUSH f Push f to top-of-stack (TOS) 1 1 None PUSH Wso Push Wso to top-of-stack (TOS) 1 1 None PUSH.D Wns Push W(ns):W(ns+1) to top-of-stack (TOS) 1 2 None PWRSAV 1 1 None 1 1 WDTO,Sleep Expr Relative Call 1 2 None Wn Computed Call 1 2 None REPEAT #lit14 Repeat Next Instruction lit14+1 times 1 1 None REPEAT Wn Repeat Next Instruction (Wn)+1 times 1 1 None Software device Reset 1 1 None Return from interrupt 1 3 (2) None Return with literal in Wn 1 3 (2) None Return from Subroutine 1 3 (2) None f f = Rotate Left through Carry f 1 1 C,N,Z RLC f,WREG WREG = Rotate Left through Carry f 1 1 C,N,Z RLC Ws,Wd Wd = Rotate Left through Carry Ws 1 1 C,N,Z RLNC f f = Rotate Left (No Carry) f 1 1 N,Z RLNC f,WREG WREG = Rotate Left (No Carry) f 1 1 N,Z RETFIE 63 RETURN RETURN 64 RLC RLC SAC Push Shadow Registers Go into Sleep or Idle mode RCALL RETLW 68 #lit1 RCALL RETLW RRNC C,DC,N,OV,Z 1 RETFIE 67 OA,OB,OAB, SA,SB,SAB f=f+1 62 RRC 1 WREG = f + 1 61 66 1 f RESET RLNC Negate Accumulator f,WREG 60 65 Status Flags Affected NEG PUSH.S 57 # of # of words cycles NEG POP.S 56 Description RESET #lit10,Wn RLNC Ws,Wd Wd = Rotate Left (No Carry) Ws 1 1 N,Z RRC f f = Rotate Right through Carry f 1 1 C,N,Z RRC f,WREG WREG = Rotate Right through Carry f 1 1 C,N,Z RRC Ws,Wd Wd = Rotate Right through Carry Ws 1 1 C,N,Z RRNC f f = Rotate Right (No Carry) f 1 1 N,Z RRNC f,WREG WREG = Rotate Right (No Carry) f 1 1 N,Z RRNC Ws,Wd Wd = Rotate Right (No Carry) Ws 1 1 N,Z SAC Acc,#Slit4,Wdo Store Accumulator 1 1 None SAC.R Acc,#Slit4,Wdo Store Rounded Accumulator 1 1 None 69 SE SE Ws,Wnd Wnd = sign extended Ws 1 1 C,N,Z 70 SETM SETM f f = 0xFFFF 1 1 None SETM WREG WREG = 0xFFFF 1 1 None SETM Ws Ws = 0xFFFF 1 1 None SFTAC Acc,Wn Arithmetic Shift Accumulator by (Wn) 1 1 OA,OB,OAB, SA,SB,SAB SFTAC Acc,#Slit6 Arithmetic Shift Accumulator by Slit6 1 1 OA,OB,OAB, SA,SB,SAB 71 72 SFTAC SL SL f f = Left Shift f 1 1 C,N,OV,Z SL f,WREG WREG = Left Shift f 1 1 C,N,OV,Z SL Ws,Wd Wd = Left Shift Ws 1 1 C,N,OV,Z SL Wb,Wns,Wnd Wnd = Left Shift Wb by Wns 1 1 N,Z SL Wb,#lit5,Wnd Wnd = Left Shift Wb by lit5 1 1 N,Z 2004 Microchip Technology Inc. Preliminary DS70082G-page 171 dsPIC30F TABLE 22-2: Base Instr # 73 74 75 76 77 INSTRUCTION SET OVERVIEW (CONTINUED) Assembly Mnemonic SUB SUBB SUBR SUBBR SWAP Assembly Syntax Description # of words # of cycles 1 1 Status Flags Affected SUB Acc Subtract Accumulators OA,OB,OAB, SA,SB,SAB SUB f f = f - WREG 1 1 C,DC,N,OV,Z SUB f,WREG WREG = f - WREG 1 1 C,DC,N,OV,Z SUB #lit10,Wn Wn = Wn - lit10 1 1 C,DC,N,OV,Z SUB Wb,Ws,Wd Wd = Wb - Ws 1 1 C,DC,N,OV,Z SUB Wb,#lit5,Wd Wd = Wb - lit5 1 1 C,DC,N,OV,Z SUBB f f = f - WREG - (C) 1 1 C,DC,N,OV,Z SUBB f,WREG WREG = f - WREG - (C) 1 1 C,DC,N,OV,Z SUBB #lit10,Wn Wn = Wn - lit10 - (C) 1 1 C,DC,N,OV,Z SUBB Wb,Ws,Wd Wd = Wb - Ws - (C) 1 1 C,DC,N,OV,Z SUBB Wb,#lit5,Wd Wd = Wb - lit5 - (C) 1 1 C,DC,N,OV,Z SUBR f f = WREG - f 1 1 C,DC,N,OV,Z SUBR f,WREG WREG = WREG - f 1 1 C,DC,N,OV,Z SUBR Wb,Ws,Wd Wd = Ws - Wb 1 1 C,DC,N,OV,Z SUBR Wb,#lit5,Wd Wd = lit5 - Wb 1 1 C,DC,N,OV,Z SUBBR f f = WREG - f - (C) 1 1 C,DC,N,OV,Z SUBBR f,WREG WREG = WREG -f - (C) 1 1 C,DC,N,OV,Z SUBBR Wb,Ws,Wd Wd = Ws - Wb - (C) 1 1 C,DC,N,OV,Z SUBBR Wb,#lit5,Wd Wd = lit5 - Wb - (C) 1 1 C,DC,N,OV,Z SWAP.b Wn Wn = nibble swap Wn 1 1 None SWAP Wn Wn = byte swap Wn 1 1 None 78 TBLRDH TBLRDH Ws,Wd Read Prog<23:16> to Wd<7:0> 1 2 None 79 TBLRDL TBLRDL Ws,Wd Read Prog<15:0> to Wd 1 2 None 80 TBLWTH TBLWTH Ws,Wd Write Ws<7:0> to Prog<23:16> 1 2 None 81 TBLWTL TBLWTL Ws,Wd Write Ws to Prog<15:0> 1 2 None 82 ULNK ULNK Unlink frame pointer 1 1 None 83 XOR XOR f f = f .XOR. WREG 1 1 N,Z XOR f,WREG WREG = f .XOR. WREG 1 1 N,Z XOR #lit10,Wn Wd = lit10 .XOR. Wd 1 1 N,Z XOR Wb,Ws,Wd Wd = Wb .XOR. Ws 1 1 N,Z 84 ZE XOR Wb,#lit5,Wd Wd = Wb .XOR. lit5 1 1 N,Z ZE Ws,Wnd Wnd = Zero-Extend Ws 1 1 C,Z,N DS70082G-page 172 Preliminary 2004 Microchip Technology Inc. dsPIC30F 23.0 DEVELOPMENT SUPPORT 23.1 The PICmicro(R) microcontrollers are supported with a full range of hardware and software development tools: * Integrated Development Environment - MPLAB(R) IDE Software * Assemblers/Compilers/Linkers - MPASMTM Assembler - MPLAB C17 and MPLAB C18 C Compilers - MPLINKTM Object Linker/ MPLIBTM Object Librarian - MPLAB C30 C Compiler - MPLAB ASM30 Assembler/Linker/Library * Simulators - MPLAB SIM Software Simulator - MPLAB dsPIC30 Software Simulator * Emulators - MPLAB ICE 2000 In-Circuit Emulator - MPLAB ICE 4000 In-Circuit Emulator * In-Circuit Debugger - MPLAB ICD 2 * Device Programmers - PRO MATE(R) II Universal Device Programmer - PICSTART(R) Plus Development Programmer * Low Cost Demonstration Boards - PICDEMTM 1 Demonstration Board - PICDEM.netTM Demonstration Board - PICDEM 2 Plus Demonstration Board - PICDEM 3 Demonstration Board - PICDEM 4 Demonstration Board - PICDEM 17 Demonstration Board - PICDEM 18R Demonstration Board - PICDEM LIN Demonstration Board - PICDEM USB Demonstration Board * Evaluation Kits - KEELOQ(R) - PICDEM MSC - microID(R) - CAN - PowerSmart(R) - Analog MPLAB Integrated Development Environment Software The MPLAB IDE software brings an ease of software development previously unseen in the 8/16-bit microcontroller market. The MPLAB IDE is a Windows(R) based application that contains: * An interface to debugging tools - simulator - programmer (sold separately) - emulator (sold separately) - in-circuit debugger (sold separately) * A full-featured editor with color coded context * A multiple project manager * Customizable data windows with direct edit of contents * High level source code debugging * Mouse over variable inspection * Extensive on-line help The MPLAB IDE allows you to: * Edit your source files (either assembly or C) * One touch assemble (or compile) and download to PICmicro emulator and simulator tools (automatically updates all project information) * Debug using: - source files (assembly or C) - absolute listing file (mixed assembly and C) - machine code MPLAB IDE supports multiple debugging tools in a single development paradigm, from the cost effective simulators, through low cost in-circuit debuggers, to full-featured emulators. This eliminates the learning curve when upgrading to tools with increasing flexibility and power. 23.2 MPASM Assembler The MPASM assembler is a full-featured, universal macro assembler for all PICmicro MCUs. The MPASM assembler generates relocatable object files for the MPLINK object linker, Intel(R) standard HEX files, MAP files to detail memory usage and symbol reference, absolute LST files that contain source lines and generated machine code and COFF files for debugging. The MPASM assembler features include: * Integration into MPLAB IDE projects * User defined macros to streamline assembly code * Conditional assembly for multi-purpose source files * Directives that allow complete control over the assembly process 2004 Microchip Technology Inc. Preliminary DS70082G-page 173 dsPIC30F 23.3 MPLAB C17 and MPLAB C18 C Compilers 23.6 The MPLAB C17 and MPLAB C18 Code Development Systems are complete ANSI C compilers for Microchip's PIC17CXXX and PIC18CXXX family of microcontrollers. These compilers provide powerful integration capabilities, superior code optimization and ease of use not found with other compilers. For easy source level debugging, the compilers provide symbol information that is optimized to the MPLAB IDE debugger. 23.4 MPLINK Object Linker/ MPLIB Object Librarian The MPLINK object linker combines relocatable objects created by the MPASM assembler and the MPLAB C17 and MPLAB C18 C compilers. It can link relocatable objects from pre-compiled libraries, using directives from a linker script. The MPLIB object librarian manages the creation and modification of library files of pre-compiled code. When a routine from a library is called from a source file, only the modules that contain that routine will be linked in with the application. This allows large libraries to be used efficiently in many different applications. The object linker/library features include: * Efficient linking of single libraries instead of many smaller files * Enhanced code maintainability by grouping related modules together * Flexible creation of libraries with easy module listing, replacement, deletion and extraction 23.5 MPLAB C30 C Compiler MPLAB C30 is distributed with a complete ANSI C standard library. All library functions have been validated and conform to the ANSI C library standard. The library includes functions for string manipulation, dynamic memory allocation, data conversion, timekeeping, and math functions (trigonometric, exponential and hyperbolic). The compiler provides symbolic information for high level source debugging with the MPLAB IDE. DS70082G-page 174 MPLAB ASM30 assembler produces relocatable machine code from symbolic assembly language for dsPIC30F devices. MPLAB C30 compiler uses the assembler to produce it's object file. The assembler generates relocatable object files that can then be archived or linked with other relocatable object files and archives to create an executable file. Notable features of the assembler include: * * * * * * Support for the entire dsPIC30F instruction set Support for fixed-point and floating-point data Command line interface Rich directive set Flexible macro language MPLAB IDE compatibility 23.7 MPLAB SIM Software Simulator The MPLAB SIM software simulator allows code development in a PC hosted environment by simulating the PICmicro series microcontrollers on an instruction level. On any given instruction, the data areas can be examined or modified and stimuli can be applied from a file, or user defined key press, to any pin. The execution can be performed in Single-Step, Execute Until Break, or Trace mode. The MPLAB SIM simulator fully supports symbolic debugging using the MPLAB C17 and MPLAB C18 C Compilers, as well as the MPASM assembler. The software simulator offers the flexibility to develop and debug code outside of the laboratory environment, making it an excellent, economical software development tool. 23.8 The MPLAB C30 C compiler is a full-featured, ANSI compliant, optimizing compiler that translates standard ANSI C programs into dsPIC30F assembly language source. The compiler also supports many commandline options and language extensions to take full advantage of the dsPIC30F device hardware capabilities, and afford fine control of the compiler code generator. MPLAB ASM30 Assembler, Linker, and Librarian MPLAB SIM30 Software Simulator The MPLAB SIM30 software simulator allows code development in a PC hosted environment by simulating the dsPIC30F series microcontrollers on an instruction level. On any given instruction, the data areas can be examined or modified and stimuli can be applied from a file, or user defined key press, to any of the pins. The MPLAB SIM30 simulator fully supports symbolic debugging using the MPLAB C30 C Compiler and MPLAB ASM30 assembler. The simulator runs in either a Command Line mode for automated tasks, or from MPLAB IDE. This high speed simulator is designed to debug, analyze and optimize time intensive DSP routines. Preliminary 2004 Microchip Technology Inc. dsPIC30F 23.9 MPLAB ICE 2000 High Performance Universal In-Circuit Emulator 23.11 MPLAB ICD 2 In-Circuit Debugger The MPLAB ICE 2000 universal in-circuit emulator is intended to provide the product development engineer with a complete microcontroller design tool set for PICmicro microcontrollers. Software control of the MPLAB ICE 2000 in-circuit emulator is advanced by the MPLAB Integrated Development Environment, which allows editing, building, downloading and source debugging from a single environment. The MPLAB ICE 2000 is a full-featured emulator system with enhanced trace, trigger and data monitoring features. Interchangeable processor modules allow the system to be easily reconfigured for emulation of different processors. The universal architecture of the MPLAB ICE in-circuit emulator allows expansion to support new PICmicro microcontrollers. The MPLAB ICE 2000 in-circuit emulator system has been designed as a real-time emulation system with advanced features that are typically found on more expensive development tools. The PC platform and Microsoft(R) Windows 32-bit operating system were chosen to best make these features available in a simple, unified application. 23.10 MPLAB ICE 4000 High Performance Universal In-Circuit Emulator The MPLAB ICE 4000 universal in-circuit emulator is intended to provide the product development engineer with a complete microcontroller design tool set for highend PICmicro microcontrollers. Software control of the MPLAB ICE in-circuit emulator is provided by the MPLAB Integrated Development Environment, which allows editing, building, downloading and source debugging from a single environment. The MPLAB ICD 4000 is a premium emulator system, providing the features of MPLAB ICE 2000, but with increased emulation memory and high speed performance for dsPIC30F and PIC18XXXX devices. Its advanced emulator features include complex triggering and timing, up to 2 Mb of emulation memory, and the ability to view variables in real-time. Microchip's In-Circuit Debugger, MPLAB ICD 2, is a powerful, low cost, run-time development tool, connecting to the host PC via an RS-232 or high speed USB interface. This tool is based on the Flash PICmicro MCUs and can be used to develop for these and other PICmicro microcontrollers. The MPLAB ICD 2 utilizes the in-circuit debugging capability built into the FLASH devices. This feature, along with Microchip's In-Circuit Serial ProgrammingTM (ICSPTM) protocol, offers cost effective in-circuit FLASH debugging from the graphical user interface of the MPLAB Integrated Development Environment. This enables a designer to develop and debug source code by setting breakpoints, single-stepping and watching variables, CPU status and peripheral registers. Running at full speed enables testing hardware and applications in real-time. MPLAB ICD 2 also serves as a development programmer for selected PICmicro devices. 23.12 PRO MATE II Universal Device Programmer The PRO MATE II is a universal, CE compliant device programmer with programmable voltage verification at VDDMIN and VDDMAX for maximum reliability. It features an LCD display for instructions and error messages and a modular detachable socket assembly to support various package types. In Stand-Alone mode, the PRO MATE II device programmer can read, verify, and program PICmicro devices without a PC connection. It can also set code protection in this mode. 23.13 PICSTART Plus Development Programmer The PICSTART Plus development programmer is an easy-to-use, low cost, prototype programmer. It connects to the PC via a COM (RS-232) port. MPLAB Integrated Development Environment software makes using the programmer simple and efficient. The PICSTART Plus development programmer supports most PICmicro devices up to 40 pins. Larger pin count devices, such as the PIC16C92X and PIC17C76X, may be supported with an adapter socket. The PICSTART Plus development programmer is CE compliant. The MPLAB ICE 4000 in-circuit emulator system has been designed as a real-time emulation system with advanced features that are typically found on more expensive development tools. The PC platform and Microsoft Windows 32-bit operating system were chosen to best make these features available in a simple, unified application. 2004 Microchip Technology Inc. Preliminary DS70082G-page 175 dsPIC30F 23.14 PICDEM 1 PICmicro Demonstration Board 23.17 PICDEM 3 PIC16C92X Demonstration Board The PICDEM 1 demonstration board demonstrates the capabilities of the PIC16C5X (PIC16C54 to PIC16C58A), PIC16C61, PIC16C62X, PIC16C71, PIC16C8X, PIC17C42, PIC17C43 and PIC17C44. All necessary hardware and software is included to run basic demo programs. The sample microcontrollers provided with the PICDEM 1 demonstration board can be programmed with a PRO MATE II device programmer, or a PICSTART Plus development programmer. The PICDEM 1 demonstration board can be connected to the MPLAB ICE in-circuit emulator for testing. A prototype area extends the circuitry for additional application components. Features include an RS-232 interface, a potentiometer for simulated analog input, push button switches and eight LEDs. The PICDEM 3 demonstration board supports the PIC16C923 and PIC16C924 in the PLCC package. All the necessary hardware and software is included to run the demonstration programs. 23.15 PICDEM.net Internet/Ethernet Demonstration Board The PICDEM.net demonstration board is an Internet/ Ethernet demonstration board using the PIC18F452 microcontroller and TCP/IP firmware. The board supports any 40-pin DIP device that conforms to the standard pinout used by the PIC16F877 or PIC18C452. This kit features a user friendly TCP/IP stack, web server with HTML, a 24L256 Serial EEPROM for Xmodem download to web pages into Serial EEPROM, ICSP/MPLAB ICD 2 interface connector, an Ethernet interface, RS-232 interface, and a 16 x 2 LCD display. Also included is the book and CD-ROM "TCP/IP Lean, Web Servers for Embedded Systems," by Jeremy Bentham 23.16 PICDEM 2 Plus Demonstration Board The PICDEM 2 Plus demonstration board supports many 18-, 28-, and 40-pin microcontrollers, including PIC16F87X and PIC18FXX2 devices. All the necessary hardware and software is included to run the demonstration programs. The sample microcontrollers provided with the PICDEM 2 demonstration board can be programmed with a PRO MATE II device programmer, PICSTART Plus development programmer, or MPLAB ICD 2 with a Universal Programmer Adapter. The MPLAB ICD 2 and MPLAB ICE in-circuit emulators may also be used with the PICDEM 2 demonstration board to test firmware. A prototype area extends the circuitry for additional application components. Some of the features include an RS-232 interface, a 2 x 16 LCD display, a piezo speaker, an on-board temperature sensor, four LEDs, and sample PIC18F452 and PIC16F877 FLASH microcontrollers. DS70082G-page 176 23.18 PICDEM 4 8/14/18-Pin Demonstration Board The PICDEM 4 can be used to demonstrate the capabilities of the 8-, 14-, and 18-pin PIC16XXXX and PIC18XXXX MCUs, including the PIC16F818/819, PIC16F87/88, PIC16F62XA and the PIC18F1320 family of microcontrollers. PICDEM 4 is intended to showcase the many features of these low pin count parts, including LIN and Motor Control using ECCP. Special provisions are made for low power operation with the supercapacitor circuit, and jumpers allow on-board hardware to be disabled to eliminate current draw in this mode. Included on the demo board are provisions for Crystal, RC or Canned Oscillator modes, a five volt regulator for use with a nine volt wall adapter or battery, DB-9 RS-232 interface, ICD connector for programming via ICSP and development with MPLAB ICD 2, 2x16 liquid crystal display, PCB footprints for H-Bridge motor driver, LIN transceiver and EEPROM. Also included are: header for expansion, eight LEDs, four potentiometers, three push buttons and a prototyping area. Included with the kit is a PIC16F627A and a PIC18F1320. Tutorial firmware is included along with the User's Guide. 23.19 PICDEM 17 Demonstration Board The PICDEM 17 demonstration board is an evaluation board that demonstrates the capabilities of several Microchip microcontrollers, including PIC17C752, PIC17C756A, PIC17C762 and PIC17C766. A programmed sample is included. The PRO MATE II device programmer, or the PICSTART Plus development programmer, can be used to reprogram the device for user tailored application development. The PICDEM 17 demonstration board supports program download and execution from external on-board FLASH memory. A generous prototype area is available for user hardware expansion. Preliminary 2004 Microchip Technology Inc. dsPIC30F 23.20 PICDEM 18R PIC18C601/801 Demonstration Board 23.23 PICDEM USB PIC16C7X5 Demonstration Board The PICDEM 18R demonstration board serves to assist development of the PIC18C601/801 family of Microchip microcontrollers. It provides hardware implementation of both 8-bit Multiplexed/De-multiplexed and 16-bit Memory modes. The board includes 2 Mb external FLASH memory and 128 Kb SRAM memory, as well as serial EEPROM, allowing access to the wide range of memory types supported by the PIC18C601/801. The PICDEM USB Demonstration Board shows off the capabilities of the PIC16C745 and PIC16C765 USB microcontrollers. This board provides the basis for future USB products. In addition to the PICDEM series of circuits, Microchip has a line of evaluation kits and demonstration software for these products. 23.21 PICDEM LIN PIC16C43X Demonstration Board The powerful LIN hardware and software kit includes a series of boards and three PICmicro microcontrollers. The small footprint PIC16C432 and PIC16C433 are used as slaves in the LIN communication and feature on-board LIN transceivers. A PIC16F874 FLASH microcontroller serves as the master. All three microcontrollers are programmed with firmware to provide LIN bus communication. 23.22 PICkitTM 1 FLASH Starter Kit A complete "development system in a box", the PICkit FLASH Starter Kit includes a convenient multi-section board for programming, evaluation, and development of 8/14-pin FLASH PIC(R) microcontrollers. Powered via USB, the board operates under a simple Windows GUI. The PICkit 1 Starter Kit includes the user's guide (on CD ROM), PICkit 1 tutorial software and code for various applications. Also included are MPLAB(R) IDE (Integrated Development Environment) software, software and hardware "Tips 'n Tricks for 8-pin FLASH PIC(R) Microcontrollers" Handbook and a USB Interface Cable. Supports all current 8/14-pin FLASH PIC microcontrollers, as well as many future planned devices. 2004 Microchip Technology Inc. 23.24 Evaluation and Programming Tools * KEELOQ evaluation and programming tools for Microchip's HCS Secure Data Products * CAN developers kit for automotive network applications * Analog design boards and filter design software * PowerSmart battery charging evaluation/ calibration kits * IrDA(R) development kit * microID development and rfLabTM development software * SEEVAL(R) designer kit for memory evaluation and endurance calculations * PICDEM MSC demo boards for Switching mode power supply, high power IR driver, delta sigma ADC, and flow rate sensor Check the Microchip web page and the latest Product Line Card for the complete list of demonstration and evaluation kits. Preliminary DS70082G-page 177 dsPIC30F NOTES: DS70082G-page 178 Preliminary 2004 Microchip Technology Inc. dsPIC30F 24.0 ELECTRICAL CHARACTERISTICS This section provides an overview of dsPIC30F electrical characteristics. Additional information will be provided in future revisions of this document as it becomes available. For detailed information about the dsPIC30F architecture and core, refer to dsPIC30F Family Reference Manual (DS70046). Absolute maximum ratings for the dsPIC30F family are listed below. Exposure to these maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at these or any other conditions above the parameters indicated in the operation listings of this specification is not implied. Absolute Maximum Ratings() Ambient temperature under bias.............................................................................................................-40C to +125C Storage temperature .............................................................................................................................. -65C to +150C Voltage on any pin with respect to VSS (except VDD and MCLR) ................................................... -0.3V to (VDD + 0.3V) Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +5.5V Voltage on MCLR with respect to VSS (Note 1) ......................................................................................... 0V to +13.25V Total power dissipation (Note 2) ...............................................................................................................................1.0W Maximum current out of VSS pin ...........................................................................................................................300 mA Maximum current into VDD pin ..............................................................................................................................250 mA Input clamp current, IIK (VI < 0 or VI > VDD) ..........................................................................................................20 mA Output clamp current, IOK (VO < 0 or VO > VDD) ................................................................................................... 20 mA Maximum output current sunk by any I/O pin..........................................................................................................25 mA Maximum output current sourced by any I/O pin ....................................................................................................25 mA Maximum current sunk by all ports .......................................................................................................................200 mA Maximum current sourced by all ports ..................................................................................................................200 mA Note 1: Power dissipation is calculated as follows: Pdis = VDD x {IDD - IOH} + {(VDD - VOH) x IOH} + (VOl x IOL) 2: Voltage spikes below VSS at the MCLR/VPP pin, inducing currents greater than 80 mA, may cause latchup. Thus, a series resistor of 50-100 should be used when applying a "low" level to the MCLR/VPP pin, rather than pulling this pin directly to VSS. NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Note: All peripheral electrical characteristics are specified. For exact peripherals available on specific devices, please refer the the Family Cross Reference Table. 2004 Microchip Technology Inc. Preliminary DS70082G-page 179 dsPIC30F 24.1 DC Characteristics TABLE 24-1: OPERATING MIPS VS. VOLTAGE Max MIPS VDD Range Temp Range dsPIC30FXXX-30I dsPIC30FXXX-20I dsPIC30FXXX-20E 30 20 -- 4.5-5.5V -40C to 85C 4.5-5.5V -40C to 125C -- -- 20 3.0-3.6V -40C to 85C 20 15 -- 3.0-3.6V -40C to 125C -- -- 15 2.5-3.0V -40C to 85C 10 7.5 -- TABLE 24-2: DC TEMPERATURE AND VOLTAGE SPECIFICATIONS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param No. Symbol Characteristic Min Typ(1) Max Units Conditions Operating Voltage(2) DC10 VDD Supply Voltage 2.5 -- 5.5 V Industrial temperature DC11 VDD Supply Voltage 3.0 -- 5.5 V Extended temperature Voltage(3) DC12 VDR RAM Data Retention -- 1.5 -- V DC16 VPOR VDD Start Voltage to ensure internal Power-on Reset signal -- VSS -- V DC17 SVDD VDD Rise Rate to ensure internal Power-on Reset signal 0.05 Note 1: 2: 3: V/ms 0-5V in 0.1 sec 0-3V in 60 ms Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. These parameters are characterized but not tested in manufacturing. This is the limit to which VDD can be lowered without losing RAM data. DS70082G-page 180 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-3: DC CHARACTERISTICS: OPERATING CURRENT (IDD) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions -- mA -40C Operating Current (IDD)(2) DC20 -- DC20a 4(3) -- mA 25C DC20b -- -- mA 85C DC20c -- -- mA 125C DC20d -- -- mA -40C DC20e 7(3) -- mA 25C DC20f -- -- mA 85C DC20g -- -- mA 125C DC23 -- -- mA -40C DC23a 13(3) -- mA 25C DC23b -- -- mA 85C DC23c -- -- mA 125C DC23d -- -- mA -40C DC23e 22(3) -- mA 25C DC23f -- -- mA 85C DC23g -- -- mA 125C DC24 -- -- mA -40C DC24a 29(3) -- mA 25C DC24b -- -- mA 85C DC24c -- -- mA 125C DC24d -- -- mA -40C DC24e 50(3) -- mA 25C DC24f -- -- mA 85C DC24g -- -- mA 125C DC25 -- -- mA -40C DC25a 23(3) -- mA 25C DC25b -- -- mA 85C DC25c -- -- mA 125C DC25d -- -- mA -40C DC25e 41(3) -- mA 25C DC25f -- -- mA 85C -- -- mA 125C DC25g Note 1: 2: 3: 3.3V 1 MIPS EC mode 5V 3.3V 4 MIPS EC mode, 4X PLL 5V 3.3V 10 MIPS EC mode, 4X PLL 5V 3.3V 8 MIPS EC mode, 8X PLL 5V Data in "Typical" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The supply current is mainly a function of the operating voltage and frequency. Other factors such as I/O pin loading and switching rate, oscillator type, internal code execution pattern and temperature also have an impact on the current consumption. The test conditions for all IDD measurements are as follows: OSC1 driven with external square wave from rail to rail. All I/O pins are configured as Inputs and pulled to VDD. MCLR = VDD, WDT, FSCM, LVD and BOR are disabled. CPU, SRAM, Program Memory and Data Memory are operational. No peripheral modules are operating. Data is provided for the dsPIC30F6010 device. Other devices will have different IDD values. Refer to the specific device data sheet for details. 2004 Microchip Technology Inc. Preliminary DS70082G-page 181 dsPIC30F TABLE 24-3: DC CHARACTERISTICS: OPERATING CURRENT (IDD) (CONTINUED) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions Operating Current (IDD)(2) DC27 -- -- mA -40C DC27a 50(3) -- mA 25C DC27b -- -- mA 85C DC27c -- -- mA -40C DC27d 90(3) -- mA 25C DC27e -- -- mA 85C DC27f -- -- mA 125C DC28 -- -- mA -40C (3) -- mA 25C DC28b -- -- mA 85C DC28c -- -- mA -40C DC28d 76(3) -- mA 25C DC28e -- -- mA 85C DC28a 42 DC28f -- -- mA 125C DC29 -- -- mA -40C DC29a 146(3) -- mA 25C DC29b -- -- mA 85C DC29c -- -- mA 125C DC30 -- -- mA -40C (3) DC30a 7.0 -- mA 25C DC30b -- -- mA 85C DC30c -- -- mA 125C DC30d -- -- mA -40C DC30e 12(3) -- mA 25C DC30f -- -- mA 85C DC30g -- -- mA 125C Note 1: 2: 3: 3.3V 20 MIPS EC mode, 8X PLL 5V 3.3V 16 MIPS EC mode, 16X PLL 5V 5V 30 MIPS EC mode, 16X PLL 3.3V FRC (~ 2 MIPS) 5V Data in "Typical" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The supply current is mainly a function of the operating voltage and frequency. Other factors such as I/O pin loading and switching rate, oscillator type, internal code execution pattern and temperature also have an impact on the current consumption. The test conditions for all IDD measurements are as follows: OSC1 driven with external square wave from rail to rail. All I/O pins are configured as Inputs and pulled to VDD. MCLR = VDD, WDT, FSCM, LVD and BOR are disabled. CPU, SRAM, Program Memory and Data Memory are operational. No peripheral modules are operating. Data is provided for the dsPIC30F6010 device. Other devices will have different IDD values. Refer to the specific device data sheet for details. DS70082G-page 182 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-3: DC CHARACTERISTICS: OPERATING CURRENT (IDD) (CONTINUED) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions -- mA -40C Operating Current (IDD)(2) DC31 -- DC31a 1.5(3) -- mA 25C DC31b -- -- mA 85C DC31c -- -- mA 125C DC31d -- -- mA -40C DC31e 2.5(3) -- mA 25C DC31f -- -- mA 85C -- -- mA 125C DC31g Note 1: 2: 3: 3.3V LPRC (~ 512 kHz) 5V Data in "Typical" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The supply current is mainly a function of the operating voltage and frequency. Other factors such as I/O pin loading and switching rate, oscillator type, internal code execution pattern and temperature also have an impact on the current consumption. The test conditions for all IDD measurements are as follows: OSC1 driven with external square wave from rail to rail. All I/O pins are configured as Inputs and pulled to VDD. MCLR = VDD, WDT, FSCM, LVD and BOR are disabled. CPU, SRAM, Program Memory and Data Memory are operational. No peripheral modules are operating. Data is provided for the dsPIC30F6010 device. Other devices will have different IDD values. Refer to the specific device data sheet for details. 2004 Microchip Technology Inc. Preliminary DS70082G-page 183 dsPIC30F TABLE 24-4: DC CHARACTERISTICS: IDLE CURRENT (IIDLE) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions Idle Current (IIDLE): Core OFF Clock ON Base Current(2) DC40 -- -- mA -40C DC40a 3(3) -- mA 25C DC40b -- -- mA 85C DC40c -- -- mA 125C DC40d -- -- mA -40C DC40e 5(3) -- mA 25C DC40f -- -- mA 85C DC40g -- -- mA 125C DC43 -- -- mA -40C (3) DC43a 7.7 -- mA 25C DC43b -- -- mA 85C DC43c -- -- mA 125C DC43d -- -- mA -40C DC43e 13(3) -- mA 25C DC43f -- -- mA 85C DC43g -- -- mA 125C DC44 -- -- mA -40C DC44a 15(3) -- mA 25C DC44b -- -- mA 85C DC44c -- -- mA 125C DC44d -- -- mA -40C DC44e 29(3) -- mA 25C DC44f -- -- mA 85C DC44g -- -- mA 125C DC45 -- -- mA -40C -- mA 25C -- mA 85C (3) DC45a 13 DC45b -- DC45c -- -- mA 125C DC45d -- -- mA -40C DC45e 24(3) -- mA 25C DC45f -- -- mA 85C DC45g -- -- mA 125C Note 1: 2: 3: 3.3V 1 MIPS EC mode 5V 3.3V 4 MIPS EC mode, 4X PLL 5V 3.3V 10 MIPS EC mode, 4X PLL 5V 3.3V 8 MIPS EC mode, 8X PLL 5V Data in "Typical" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. Base IIDLE current is measured with Core off, Clock on and all modules turned off. Data is provided for the dsPIC30F6010 device. Other devices will have different IDD values. Refer to the specific device data sheet for details. DS70082G-page 184 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-4: DC CHARACTERISTICS: IDLE CURRENT (IIDLE) (CONTINUED) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions Idle Current (IIDLE): Core OFF Clock ON Base Current(2) DC47 -- -- mA -40C DC47a 29(3) -- mA 25C DC47b -- -- mA 85C DC47c -- -- mA -40C -- mA 25C -- mA 85C DC47d DC47e 52 (3) -- DC47f -- -- mA 125C DC48 -- -- mA -40C -- mA 25C DC48a 24 (3) DC48b -- -- mA 85C DC48c -- -- mA -40C (3) -- mA 25C DC48e -- -- mA 85C DC48f -- -- mA 125C DC49 -- -- mA -40C DC49a 73(3) -- mA 25C DC49b -- -- mA 85C DC49c -- -- mA 125C DC50 -- -- mA -40C -- mA 25C -- mA 85C DC48d 43 (3) DC50a 4.0 DC50b -- DC50c -- -- mA 125C DC50d -- -- mA -40C DC50e 7.0(3) -- mA 25C DC50f -- -- mA 85C DC50g -- -- mA 125C DC51 -- -- mA -40C -- mA 25C (3) DC51a 1.0 DC51b -- -- mA 85C DC51c -- -- mA 125C DC51d -- -- mA -40C DC51e 1.5(3) -- mA 25C DC51f -- -- mA 85C DC51g -- -- mA 125C Note 1: 2: 3: 3.3V 20 MIPS EC mode, 8X PLL 5V 3.3V 16 MIPS EC mode, 16X PLL 5V 5V 30 MIPS EC mode, 16X PLL 3.3V FRC (~ 2 MIPS) 5V 3.3V LPRC (~ 512 kHz) 5V Data in "Typical" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. Base IIDLE current is measured with Core off, Clock on and all modules turned off. Data is provided for the dsPIC30F6010 device. Other devices will have different IDD values. Refer to the specific device data sheet for details. 2004 Microchip Technology Inc. Preliminary DS70082G-page 185 dsPIC30F TABLE 24-5: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions Power Down Current (IPD)(2) DC60 -- -- A -40C DC60a 0.1 -- A 25C DC60b -- -- A 85C DC60c -- -- A 125C DC60d -- -- A -40C DC60e 0.2 -- A 25C DC60f -- -- A 85C DC60g -- -- A 125C DC61 -- -- A -40C DC61a 6.8 -- A 25C DC61b -- -- A 85C DC61c -- -- A 125C DC61d -- -- A -40C DC61e 16 -- A 25C DC61f -- -- A 85C DC61g -- -- A 125C DC62 -- -- A -40C DC62a 5.5 -- A 25C DC62b -- -- A 85C DC62c -- -- A 125C DC62d -- -- A -40C DC62e 7.5 -- A 25C DC62f -- -- A 85C DC62g -- -- A 125C DC63 -- -- A -40C DC63a 32 -- A 25C DC63b -- -- A 85C DC63c -- -- A 125C DC63d -- -- A -40C DC63e 38 -- A 25C DC63f -- -- A 85C DC63g -- -- A 125C Note 1: 2: 3: 3.3V Base Power Down Current(3) 5V 3.3V Watchdog Timer Current: IWDT(3) 5V 3.3V Timer 1 w/32 kHz Crystal: ITI32(3) 5V 3.3V BOR On: IBOR(3) 5V Data in the Typical column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. Base IPD is measured with all peripherals and clocks shut down. All I/Os are configured as inputs and pulled high. LVD, BOR, WDT, etc. are all switched off. The current is the additional current consumed when the module is enabled. This current should be added to the base IPD current. DS70082G-page 186 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-5: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD) (CONTINUED) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Parameter No. Typical(1) Max Units Conditions Power Down Current (IPD)(2) DC66 -- -- A -40C DC66a 25 -- A 25C DC66b -- -- A 85C DC66c -- -- A 125C DC66d -- -- A -40C DC66e 30 -- A 25C DC66f -- -- A 85C -- -- A 125C DC66g Note 1: 2: 3: 3.3V Low Voltage Detect: ILVD(3) 5V Data in the Typical column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. Base IPD is measured with all peripherals and clocks shut down. All I/Os are configured as inputs and pulled high. LVD, BOR, WDT, etc. are all switched off. The current is the additional current consumed when the module is enabled. This current should be added to the base IPD current. 2004 Microchip Technology Inc. Preliminary DS70082G-page 187 dsPIC30F TABLE 24-6: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param Symbol No. VIL DI10 Characteristic Min Typ(1) Max Units VSS -- 0.2 VDD V Conditions Input Low Voltage(2) I/O pins: with Schmitt Trigger buffer DI15 MCLR VSS -- 0.2 VDD V DI16 OSC1 (in XT, HS and LP modes) VSS -- 0.2 VDD V (3) DI17 OSC1 (in RC mode) VSS -- 0.3 VDD V DI18 SDA, SCL TBD -- TBD V SM bus disabled SDA, SCL TBD -- TBD V SM bus enabled I/O pins: with Schmitt Trigger buffer 0.8 VDD -- VDD V DI25 MCLR 0.8 VDD -- VDD V DI26 OSC1 (in XT, HS and LP modes) 0.7 VDD -- VDD V DI27 (3) OSC1 (in RC mode) 0.9 VDD -- VDD V DI28 SDA, SCL TBD -- TBD V SM bus disabled DI29 SDA, SCL TBD -- TBD V SM bus enabled 50 250 400 A VDD = 5V, VPIN = VSS TBD TBD TBD A VDD = 3V, VPIN = VSS DI19 VIH DI20 ICNPU Input High Voltage(2) CNXX Pull-up Current(2) DI30 DI31 IIL Input Leakage Current(2)(4)(5) DI50 I/O ports -- 0.01 1 A VSS VPIN VDD, Pin at hi-impedance DI51 Analog input pins -- 0.50 -- A VSS VPIN VDD, Pin at hi-impedance DI55 MCLR -- 0.05 5 A VSS VPIN VDD DI56 OSC1 -- 0.05 5 A VSS VPIN VDD, XT, HS and LP Osc mode Note 1: 2: 3: 4: 5: Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. These parameters are characterized but not tested in manufacturing. In RC oscillator configuration, the OSC1/CLKl pin is a Schmitt Trigger input. It is not recommended that the dsPIC30F device be driven with an external clock while in RC mode. The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified levels represent normal operating conditions. Higher leakage current may be measured at different input voltages. Negative current is defined as current sourced by the pin. DS70082G-page 188 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-7: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param Symbol No. VOL Characteristic Min Typ(1) Max Units -- -- 0.6 V IOL = 8.5 mA, VDD = 5V Conditions Output Low Voltage(2) DO10 I/O ports -- -- TBD V IOL = 2.0 mA, VDD = 3V DO16 OSC2/CLKOUT -- -- 0.6 V IOL = 1.6 mA, VDD = 5V (RC or EC Osc mode) -- -- TBD V IOL = 2.0 mA, VDD = 3V VDD - 0.7 -- -- V IOH = -3.0 mA, VDD = 5V TBD -- -- V IOH = -2.0 mA, VDD = 3V VOH DO20 Output High Voltage(2) I/O ports DO26 OSC2/CLKOUT (RC or EC Osc mode) VDD - 0.7 -- -- V IOH = -1.3 mA, VDD = 5V TBD -- -- V IOH = -2.0 mA, VDD = 3V Capacitive Loading Specs on Output Pins(2) DO50 COSC2 OSC2/SOSC2 pin -- -- 15 pF In XTL, XT, HS and LP modes when external clock is used to drive OSC1. DO56 CIO All I/O pins and OSC2 -- -- 50 pF RC or EC Osc mode DO58 CB SCL, SDA -- -- 400 pF In I2C mode Note 1: 2: Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. These parameters are characterized but not tested in manufacturing. FIGURE 24-1: LOW-VOLTAGE DETECT CHARACTERISTICS VDD LV10 LVDIF (LVDIF set by hardware) 2004 Microchip Technology Inc. Preliminary DS70082G-page 189 dsPIC30F TABLE 24-8: ELECTRICAL CHARACTERISTICS: LVDL Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param No. LV10 Characteristic(1) Symbol VPLVD Min Typ Max Units LVDL Voltage on VDD transition LVDL = 0000(2) high to low -- -- -- V LVDL = 0001(2) -- -- -- V LVDL = 0010(2) -- -- -- V -- -- -- V 2.50 -- 2.65 V LVDL = 0011 (2) LVDL = 0100 LV15 Note 1: 2: VLVDIN External LVD input pin threshold voltage LVDL = 0101 2.70 -- 2.86 V LVDL = 0110 2.80 -- 2.97 V LVDL = 0111 3.00 -- 3.18 V LVDL = 1000 3.30 -- 3.50 V LVDL = 1001 3.50 -- 3.71 V LVDL = 1010 3.60 -- 3.82 V LVDL = 1011 3.80 -- 4.03 V LVDL = 1100 4.00 -- 4.24 V LVDL = 1101 4.20 -- 4.45 V LVDL = 1110 4.50 -- 4.77 V LVDL = 1111 -- -- -- V Conditions These parameters are characterized but not tested in manufacturing. These values not in usable operating range. FIGURE 24-2: BROWN-OUT RESET CHARACTERISTICS VDD BO10 (Device in Brown-out Reset) BO15 (Device not in Brown-out Reset) RESET (due to BOR) Power Up Time-out DS70082G-page 190 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-9: ELECTRICAL CHARACTERISTICS: BOR Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param No. Symbol VBOR BO10 Min Typ(1) Max Units BORV = 00(3) -- -- -- V BORV = 01 2.7 -- 2.86 V BORV = 10 4.2 -- 4.46 V BORV = 11 4.5 -- 4.78 V -- 5 -- mV Characteristic BOR Voltage(2) on VDD transition high to low Conditions Not in operating range BO15 VBHYS Note 1: Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. These parameters are characterized but not tested in manufacturing. 00 values not in usable operating range. 2: 3: TABLE 24-10: DC CHARACTERISTICS: PROGRAM AND EEPROM Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended DC CHARACTERISTICS Param Symbol No. Characteristic Min Typ(1) Max Units Conditions Data EEPROM Memory(2) D120 ED Byte Endurance 100K 1M -- E/W D121 VDRW VDD for Read/Write VMIN -- 5.5 V -40C TA +85C Using EECON to read/write VMIN = Minimum operating voltage D122 TDEW Erase/Write Cycle Time -- 2 -- ms D123 TRETD Characteristic Retention 40 100 -- Year Provided no other specifications are violated D124 IDEW IDD During Programming -- 10 30 mA Row Erase -40C TA +85C (2) Program FLASH Memory D130 EP Cell Endurance 10K 100K -- E/W D131 VPR VDD for Read VMIN -- 5.5 V D132 VEB VDD for Block Erase 3.0 -- 5.5 V D133 VPEW VDD for Erase/Write 3.0 -- 5.5 V D134 TPEW Erase/Write Cycle Time -- 2 -- ms D135 TRETD Characteristic Retention 40 100 -- Year VMIN = Minimum operating voltage Provided no other specifications are violated D136 TEB ICSP Block Erase Time -- 4 -- ms D137 IPEW IDD During Programming -- 10 30 mA Row Erase D138 IEB IDD During Programming -- 10 30 mA Bulk Erase Note 1: 2: Data in "Typ" column is at 5V, 25C unless otherwise stated. These parameters are characterized but not tested in manufacturing. 2004 Microchip Technology Inc. Preliminary DS70082G-page 191 dsPIC30F 24.2 AC Characteristics and Timing Parameters The information contained in this section defines dsPIC30F AC characteristics and timing parameters. TABLE 24-11: TEMPERATURE AND VOLTAGE SPECIFICATIONS - AC Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended Operating voltage VDD range as described in DC Spec Section 24.0. AC CHARACTERISTICS FIGURE 24-3: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS Load Condition 1 - for all pins except OSC2 Load Condition 2 - for OSC2 VDD/2 RL CL Pin VSS CL Pin RL = 464 CL = 50 pF for all pins except OSC2 5 pF for OSC2 output VSS FIGURE 24-4: EXTERNAL CLOCK TIMING Q4 Q1 Q2 Q3 Q4 Q1 OSC1 OS20 OS30 OS25 OS30 OS31 OS31 CLKOUT OS40 DS70082G-page 192 Preliminary OS41 2004 Microchip Technology Inc. dsPIC30F TABLE 24-12: EXTERNAL CLOCK TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param Symbol No. FOSC OS10 Characteristic Min Typ(1) Max Units External CLKIN Frequency(2) (External clocks allowed only in EC mode) DC 4 4 4 -- -- -- -- 40 10 10 7.5 MHz MHz MHz MHz EC EC with 4x PLL EC with 8x PLL EC with 16x PLL Oscillator Frequency(2) DC 0.4 4 4 4 4 10 31 -- -- -- -- -- -- -- -- -- -- 8 512 4 4 10 10 10 7.5 25 33 -- -- MHz MHz MHz MHz MHz MHz MHz kHz MHz kHz RC XTL XT XT with 4x PLL XT with 8x PLL XT with 16x PLL HS LP FRC internal LPRC internal -- -- -- -- See parameter OS10 for FOSC value Conditions OS20 TOSC TOSC = 1/FOSC OS25 TCY Instruction Cycle Time(2)(3) 33 -- DC ns See Table 24-14 OS30 TosL, TosH External Clock(2) in (OSC1) High or Low Time .45 x TOSC -- -- ns EC OS31 TosR, TosF External Clock(2) in (OSC1) Rise or Fall Time -- -- 20 ns EC OS40 TckR CLKOUT Rise Time(2)(4) -- 6 10 ns OS41 TckF CLKOUT Fall Time(2)(4) -- 6 10 ns Note 1: 2: 3: 4: Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. These parameters are characterized but not tested in manufacturing. Instruction cycle period (TCY) equals four times the input oscillator time-base period. All specified values are based on characterization data for that particular oscillator type under standard operating conditions with the device executing code. Exceeding these specified limits may result in an unstable oscillator operation and/or higher than expected current consumption. All devices are tested to operate at "min." values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the "Max." cycle time limit is "DC" (no clock) for all devices. Measurements are taken in EC or ERC modes. The CLKOUT signal is measured on the OSC2 pin. CLKOUT is low for the Q1-Q2 period (1/2 TCY) and high for the Q3-Q4 period (1/2 TCY). 2004 Microchip Technology Inc. Preliminary DS70082G-page 193 dsPIC30F TABLE 24-13: PLL CLOCK TIMING SPECIFICATIONS (VDD = 2.5 TO 5.5 V) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Characteristic(1) Symbol Min Typ(2) Max Units Conditions OS50 FPLLI PLL Input Frequency Range(2) 4 -- 10 MHz EC, XT modes with PLL OS51 FSYS On-chip PLL Output(2) 16 -- 120 MHz EC, XT modes with PLL OS52 TLOC PLL Start-up Time (Lock Time) -- 20 50 s OS53 DCLK CLKOUT Stability (Jitter) TBD 1 TBD % Note 1: 2: Measured over 100 ms period These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. TABLE 24-14: INTERNAL CLOCK TIMING EXAMPLES Clock Oscillator Mode FOSC (MHz)(1) TCY (sec)(2) MIPS(3) w/o PLL MIPS(3) w PLL x4 MIPS(3) w PLL x8 MIPS(3) w PLL x16 EC 0.200 20.0 0.05 -- -- -- XT Note 1: 2: 3: 4 1.0 1.0 4.0 8.0 16.0 10 0.4 2.5 10.0 20.0 -- 25 0.16 25.0 -- -- -- 4 1.0 1.0 4.0 8.0 16.0 10 0.4 2.5 10.0 20.0 -- Assumption: Oscillator Postscaler is divide by 1. Instruction Execution Cycle Time: TCY = 1 / MIPS. Instruction Execution Frequency: MIPS = (FOSC * PLLx) / 4 [since there are 4 Q clocks per instruction cycle]. TABLE 24-15: INTERNAL RC ACCURACY Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Characteristic Min Typ Max Units Conditions F16 TBD -- TBD % -40C to +85C VDD = 3.3V F19 TBD -- TBD % -40C to +85C VDD = 5V TBD -- TBD % -40C to +85C VDD = 3V TBD -- TBD % -40C to +85C VDD = 5V FRC @ Freq = 8 MHz(1) LPRC @ Freq = 512 kHz F20 F21 Note 1: 2: 3: (2) Frequency calibrated at 25C and 5V. TUN bits can be used to compensate for temperature drift. LPRC frequency after calibration. Change of LPRC frequency as VDD changes. DS70082G-page 194 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-5: CLKOUT AND I/O TIMING CHARACTERISTICS I/O Pin (Input) DI35 DI40 I/O Pin (Output) New Value Old Value DO31 DO32 Note: Refer to Figure 24-3 for load conditions. TABLE 24-16: CLKOUT AND I/O TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Characteristic(1)(2)(3) Symbol Min Typ(4) Max Units Conditions -- 10 25 ns -- DO31 TIOR DO32 TIOF Port output fall time -- 10 25 ns -- DI35 TINP INTx pin high or low time (output) 20 -- -- ns -- TRBP CNx high or low time (input) 2 TCY -- -- ns -- DI40 Note 1: 2: 3: 4: Port output rise time These parameters are asynchronous events not related to any internal clock edges Measurements are taken in RC mode and EC mode where CLKOUT output is 4 x TOSC. These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. 2004 Microchip Technology Inc. Preliminary DS70082G-page 195 dsPIC30F FIGURE 24-6: VDD RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP TIMER TIMING CHARACTERISTICS SY12 MCLR SY10 Internal POR SY11 PWRT Time-out OSC Time-out SY30 Internal RESET Watchdog Timer RESET SY13 SY20 SY13 I/O Pins SY35 FSCM Delay Note: Refer to Figure 24-3 for load conditions. DS70082G-page 196 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-17: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER AND BROWN-OUT RESET TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param Symbol No. Characteristic(1) SY10 TmcL MCLR Pulse Width (low) SY11 TPWRT Power-up Timer Period Min Typ(2) Max Units Conditions 2 -- -- s -40C to +85C TBD TBD TBD TBD 0 4 16 64 TBD TBD TBD TBD ms -40C to +85C User programmable -40C to +85C SY12 TPOR Power On Reset Delay 3 10 30 s SY13 TIOZ I/O Hi-impedance from MCLR Low or Watchdog Timer Reset -- -- 100 ns SY20 TWDT1 Watchdog Timer Time-out Period (No Prescaler) 1.8 2.0 2.2 ms VDD = 5V, -40C to +85C 1.9 2.1 2.3 ms VDD = 3V, -40C to +85C SY25 TBOR Brown-out Reset Pulse Width(3) 100 -- -- s VDD VBOR (D034) SY30 TOST Oscillation Start-up Timer Period -- 1024 TOSC -- -- TOSC = OSC1 period SY35 TFSCM Fail-Safe Clock Monitor Delay -- 100 -- s -40C to +85C TWDT2 Note 1: 2: 3: These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Refer to Figure 24-2 and Table 24-9 for BOR. FIGURE 24-7: BAND GAP START-UP TIME CHARACTERISTICS VBGAP 0V Enable Band Gap (see Note) Band Gap Stable SY40 Note: Set LVDEN bit (RCON<12>) or FBORPOR<7>set. TABLE 24-18: BAND GAP START-UP TIME REQUIREMENTS AC CHARACTERISTICS Param No. SY40 Note 1: 2: Symbol TBGAP Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended Characteristic(1) Min Typ(2) Max Units Band Gap Start-up Time -- 20 50 s Conditions Defined as the time between the instant that the band gap is enabled and the moment that the band gap reference voltage is stable. RCON<13>Status bit These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. 2004 Microchip Technology Inc. Preliminary DS70082G-page 197 dsPIC30F FIGURE 24-8: TYPE A, B AND C TIMER EXTERNAL CLOCK TIMING CHARACTERISTICS TxCK Tx11 Tx10 Tx15 Tx20 OS60 TMRX Note: Refer to Figure 24-3 for load conditions. TABLE 24-19: TYPE A TIMER (TIMER1) EXTERNAL CLOCK TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. TA10 TA11 TA15 Symbol TTXH TTXL TTXP Characteristic TxCK High Time TxCK Low Time Min Typ Max Units Conditions Synchronous, no prescaler 0.5 TCY + 20 -- -- ns Must also meet parameter TA15 Synchronous, with prescaler 10 -- -- ns Asynchronous 10 -- -- ns Synchronous, no prescaler 0.5 TCY + 20 -- -- ns Synchronous, with prescaler 10 -- -- ns Asynchronous 10 -- -- ns TCY + 10 -- -- ns Greater of: 20 ns or (TCY + 40)/N -- -- -- 20 -- -- ns DC -- 50 kHz 6 TOSC -- TxCK Input Period Synchronous, no prescaler Synchronous, with prescaler Asynchronous OS60 Ft1 TA20 TCKEXTMRL Delay from External TQCK Clock Edge to Timer Increment Note: SOSC1/T1CK oscillator input frequency range (oscillator enabled by setting bit TCS (T1CON, bit 1)) 2 TOSC Must also meet parameter TA15 N = prescale value (1, 8, 64, 256) Timer1 is a Type A. DS70082G-page 198 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-20: TYPE B TIMER (TIMER2 AND TIMER4) EXTERNAL CLOCK TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. TB10 TB11 TB15 Symbol TtxH TtxL TtxP Characteristic TxCK High Time TxCK Low Time Min Typ Max Units Synchronous, no prescaler 0.5 TCY + 20 -- -- ns Synchronous, with prescaler 10 -- -- ns Synchronous, no prescaler 0.5 TCY + 20 -- -- ns Synchronous, with prescaler 10 -- -- ns TCY + 10 -- -- ns -- 6 TOSC -- TxCK Input Period Synchronous, no prescaler Synchronous, with prescaler TB20 Note: TCKEXTMRL Delay from External TQCK Clock Edge to Timer Increment Greater of: 20 ns or (TCY + 40)/N 2 TOSC Conditions Must also meet parameter TB15 Must also meet parameter TB15 N = prescale value (1, 8, 64, 256) Timer2 and Timer4 are Type B. TABLE 24-21: TYPE C TIMER (TIMER3 AND TIMER5) EXTERNAL CLOCK TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic Min Typ Max Units Conditions TC10 TtxH TxCK High Time Synchronous 0.5 TCY + 20 -- -- ns Must also meet parameter TC15 TC11 TtxL TxCK Low Time Synchronous 0.5 TCY + 20 -- -- ns Must also meet parameter TC15 TC15 TtxP TxCK Input Period Synchronous, no prescaler TCY + 10 -- -- ns N = prescale value (1, 8, 64, 256) -- 6 TOSC -- Synchronous, with prescaler TC20 Note: TCKEXTMRL Delay from External TQCK Clock Edge to Timer Increment Greater of: 20 ns or (TCY + 40)/N 2 TOSC Timer3 and Timer5 are Type C. 2004 Microchip Technology Inc. Preliminary DS70082G-page 199 dsPIC30F FIGURE 24-9: TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS QEB TQ11 TQ10 TQ15 TQ20 POSCNT TABLE 24-22: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Min Typ Max Units Conditions TQ10 TtQH TQCK High Time Synchronous, with prescaler TCY + 20 -- ns Must also meet parameter TQ15 TQ11 TtQL TQCK Low Time Synchronous, with prescaler TCY + 20 -- ns Must also meet parameter TQ15 TQ15 TtQP TQCP Input Period Synchronous, with prescaler 2 * TCY + 40 -- ns -- TQ20 TCKEXTMRL Delay from External TQCK Clock Edge to Timer Increment Tosc 5 Tosc ns -- Note 1: These parameters are characterized but not tested in manufacturing. DS70082G-page 200 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-10: INPUT CAPTURE (CAPx) TIMING CHARACTERISTICS ICX IC10 IC11 IC15 Note: Refer to Figure 24-3 for load conditions. TABLE 24-23: INPUT CAPTURE TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Characteristic(1) Symbol IC10 TccL ICx Input Low Time No Prescaler IC11 TccH ICx Input High Time No Prescaler IC15 TccP ICx Input Period Min Max Units 0.5 TCY + 20 -- ns 10 -- ns 0.5 TCY + 20 -- ns With Prescaler With Prescaler Note 1: 10 -- ns (2 TCY + 40)/N -- ns Conditions N = prescale value (1, 4, 16) These parameters are characterized but not tested in manufacturing. FIGURE 24-11: OUTPUT COMPARE MODULE (OCx) TIMING CHARACTERISTICS OCx (Output Compare or PWM Mode) OC10 OC11 Note: Refer to Figure 24-3 for load conditions. TABLE 24-24: OUTPUT COMPARE MODULE TIMING REQUIREMENTS AC CHARACTERISTICS Param Symbol No. Characteristic(1) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended Min Typ(2) Max Units Conditions OC10 TccF OCx Output Fall Time -- 10 25 ns -- OC11 TccR OCx Output Rise Time -- 10 25 ns -- Note 1: 2: These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. 2004 Microchip Technology Inc. Preliminary DS70082G-page 201 dsPIC30F FIGURE 24-12: OC/PWM MODULE TIMING CHARACTERISTICS OC20 OCFA/OCFB OC15 OCx TABLE 24-25: SIMPLE OC/PWM MODE TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param Symbol No. Characteristic(1) Min Typ(2) Max Units 25 ns OC15 TFD Fault Input to PWM I/O Change -- -- OC20 TFLT Fault Input Pulse Width -- -- Note 1: 2: Conditions VDD = 3V TBD ns VDD = 5V 50 ns VDD = 3V TBD ns VDD = 5V -40C to +85C -40C to +85C These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. DS70082G-page 202 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-13: MOTOR CONTROL PWM MODULE FAULT TIMING CHARACTERISTICS MP30 FLTA/B MP20 PWMx FIGURE 24-14: MOTOR CONTROL PWM MODULE TIMING CHARACTERISTICS MP11 MP10 PWMx Note: Refer to Figure 24-3 for load conditions. TABLE 24-26: MOTOR CONTROL PWM MODULE TIMING REQUIREMENTS AC CHARACTERISTICS Param No. Symbol Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended Characteristic(1) Min Typ(2) Max Units Conditions MP10 TFPWM PWM Output Fall Time -- 10 25 ns VDD = 5V -40C to +85C MP11 TRPWM PWM Output Rise Time -- 10 25 ns VDD = 5V -40C to +85C MP12 TFPWM PWM Output Fall Time -- TBD TBD ns VDD = 3V -40C to +85C MP13 TRPWM PWM Output Rise Time -- TBD TBD ns VDD = 3V -40C to +85C TFD Fault Input to PWM I/O Change -- -- 25 ns VDD = 3V -40C to +85C TBD ns VDD = 5V TFH Minimum Pulse Width -- -- 50 ns VDD = 3V TBD ns VDD = 5V MP20 MP30 Note 1: 2: -40C to +85C These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. 2004 Microchip Technology Inc. Preliminary DS70082G-page 203 dsPIC30F FIGURE 24-15: QEA/QEB INPUT CHARACTERISTICS TQ36 QEA (input) TQ30 TQ31 TQ35 QEB (input) TQ41 TQ40 TQ30 TQ31 TQ35 QEB Internal TABLE 24-27: QUADRATURE DECODER TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Typ(2) Max Units Conditions 6 TCY -- ns -- TQ30 TQUL Quadrature Input Low Time TQ31 TQUH Quadrature Input High Time 6 TCY -- ns -- TQ35 TQUIN Quadrature Input Period 12 TCY -- ns -- TQ36 TQUP Quadrature Phase Period 3 TCY -- ns TQ40 TQUFL Filter Time to Recognize Low, with Digital Filter 3 * N * TCY -- ns N = 1, 2, 4, 16, 32, 64, 128 and 256 (Note 2) TQ41 TQUFH Filter Time to Recognize High, with Digital Filter 3 * N * TCY -- ns N = 1, 2, 4, 16, 32, 64, 128 and 256 (Note 2) Note 1: 2: These parameters are characterized but not tested in manufacturing. N = Index Channel Digital Filter Clock Divide Select Bits. Refer to Section 16. "Quadrature Encoder Interface (QEI)" in the dsPIC30F Family Reference Manual. DS70082G-page 204 Preliminary -- 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-16: QEI MODULE INDEX PULSE TIMING CHARACTERISTICS QEA (input) QEB (input) Ungated Index TQ50 TQ51 Index Internal TQ55 Position TABLE 24-28: QEI INDEX PULSE TIMING REQUIREMENTS AC CHARACTERISTICS Param No. Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended Characteristic(1) Symbol Min Max Units Conditions TQ50 TqIL Filter Time to Recognize Low, with Digital Filter 3 * N * TCY -- ns N = 1, 2, 4, 16, 32, 64, 128 and 256 (Note 2) TQ51 TqiH Filter Time to Recognize High, with Digital Filter 3 * N * TCY -- ns N = 1, 2, 4, 16, 32, 64, 128 and 256 (Note 2) TQ55 Tqidxr Index Pulse Recognized to Position Counter Reset (Ungated Index) 3 TCY -- ns Note 1: 2: -- These parameters are characterized but not tested in manufacturing. Alignment of Index Pulses to QEA and QEB is shown for Position Counter reset timing only. Shown for forward direction only (QEA leads QEB). Same timing applies for reverse direction (QEA lags QEB) but Index Pulse recognition occurs on falling edge. 2004 Microchip Technology Inc. Preliminary DS70082G-page 205 dsPIC30F FIGURE 24-17: SPI MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS SCKx (CKP = 0) SP11 SP10 SP21 SP20 SP20 SP21 SCKx (CKP = 1) SP35 BIT14 - - - - - -1 MSb SDOx SP31 SDIx LSb SP30 MSb IN LSb IN BIT14 - - - -1 SP40 SP41 Note: Refer to Figure 24-3 for load conditions. TABLE 24-29: SPI MASTER MODE (CKE = 0) TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions -- -- ns -- TscL SCKX Output Low Time(3) TCY / 2 SP11 TscH SCKX Output High Time(3) TCY / 2 -- -- ns -- SP20 TscF SCKX Output Fall Time(4 -- 10 25 ns -- SP21 TscR SCKX Output Rise Time(4) -- 10 25 ns -- SP30 TdoF SDOX Data Output Fall Time(4) -- 10 25 ns -- SP10 (4) SP31 TdoR SDOX Data Output Rise Time -- 10 25 ns -- SP35 TscH2doV, TscL2doV SDOX Data Output Valid after SCKX Edge -- -- 30 ns -- SP40 TdiV2scH, TdiV2scL Setup Time of SDIX Data Input to SCKX Edge 20 -- -- ns -- SP41 TscH2diL, TscL2diL Hold Time of SDIX Data Input to SCKX Edge 20 -- -- ns -- Note 1: 2: 3: 4: These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The minimum clock period for SCK is 100 ns. Therefore, the clock generated in Master mode must not violate this specification. Assumes 50 pF load on all SPI pins. DS70082G-page 206 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-18: SPI MODULE MASTER MODE (CKE =1) TIMING CHARACTERISTICS SP36 SCKX (CKP = 0) SP11 SP10 SP21 SP20 SP20 SP21 SCKX (CKP = 1) SP35 SDOX BIT14 - - - - - -1 MSb SP40 SDIX LSb SP30,SP31 MSb IN BIT14 - - - -1 LSb IN SP41 Note: Refer to Figure 24-3 for load conditions. TABLE 24-30: SPI MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions SP10 TscL SCKX output low time(3) TCY / 2 -- -- ns -- SP11 TscH SCKX output high time(3) TCY / 2 -- -- ns -- -- 10 25 ns -- -- 10 25 ns -- -- 10 25 ns -- -- 10 25 ns -- time(4) SP20 TscF SCKX output fall SP21 TscR SCKX output rise time(4) time(4) SP30 TdoF SDOX data output fall SP31 TdoR SDOX data output rise time(4) SP35 TscH2doV, SDOX data output valid after TscL2doV SCKX edge -- -- 30 ns -- SP36 TdoV2sc, SDOX data output setup to TdoV2scL first SCKX edge 30 -- -- ns -- SP40 TdiV2scH, Setup time of SDIX data input TdiV2scL to SCKX edge 20 -- -- ns -- SP41 TscH2diL, TscL2diL 20 -- -- ns -- Note 1: 2: 3: 4: Hold time of SDIX data input to SCKX edge These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The minimum clock period for SCK is 100 ns. Therefore, the clock generated in master mode must not violate this specification. Assumes 50 pF load on all SPI pins. 2004 Microchip Technology Inc. Preliminary DS70082G-page 207 dsPIC30F FIGURE 24-19: SPI MODULE SLAVE MODE (CKE = 0) TIMING CHARACTERISTICS SSX SP52 SP50 SCKX (CKP = 0) SP71 SP70 SP20 SP21 SP20 SP21 SCKX (CKP = 1) SP35 MSb SDOX LSb BIT14 - - - - - -1 SP51 SP30,SP31 SDIX MSb IN SP40 BIT14 - - - -1 LSb IN SP41 Note: Refer to Figure 24-3 for load conditions. TABLE 24-31: SPI MODULE SLAVE MODE (CKE = 0) TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions SP70 SP71 TscL TscH SCKX Input Low Time SCKX Input High Time 30 30 -- -- -- -- ns ns -- -- SP20 TscF SCKX Output Fall Time(3) -- 10 25 ns -- SP21 TscR SCKX Output Rise Time(3) -- 10 25 ns -- -- Time(3) SP30 TdoF SDOX Data Output Fall 10 25 ns -- SP31 SP35 TdoR TscH2doV, TscL2doV TdiV2scH, TdiV2scL TscH2diL, TscL2diL SDOX Data Output Rise Time(3) SDOX Data Output Valid after SCKX Edge Setup Time of SDIX Data Input to SCKX Edge Hold Time of SDIX Data Input to SCKX Edge -- -- 10 -- 25 30 ns ns -- -- 20 -- -- ns -- 20 -- -- ns -- SP50 TssL2scH, SSX to SCKX or SCKX Input TssL2scL 120 -- -- ns -- SP51 TssH2doZ SSX to SDOX Output Hi-Impedance(3) 10 -- 50 ns -- SP52 1.5 TCY +40 -- -- ns -- TscH2ssH SSX after SCK Edge TscL2ssH These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. Assumes 50 pF load on all SPI pins. SP40 SP41 Note 1: 2: 3: DS70082G-page 208 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-20: SPI MODULE SLAVE MODE (CKE = 1) TIMING CHARACTERISTICS SP60 SSX SP52 SP50 SCKX (CKP = 0) SP71 SP70 SP20 SP21 SP20 SP21 SCKX (CKP = 1) SP35 SP52 MSb SDOX BIT14 - - - - - -1 LSb SP30,SP31 SDIX MSb IN SP51 BIT14 - - - -1 LSb IN SP41 SP40 Note: Refer to Figure 24-3 for load conditions. 2004 Microchip Technology Inc. Preliminary DS70082G-page 209 dsPIC30F TABLE 24-32: SPI MODULE SLAVE MODE (CKE = 1) TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions SP70 TscL SCKX Input Low Time 30 -- -- ns -- SP71 TscH SCKX Input High Time 30 -- -- ns -- SP20 TscF SCKX Output Fall Time(3) -- 10 25 ns -- SP21 TscR SCKX Output Rise Time(3) -- 10 25 ns -- -- 10 25 ns -- -- 10 25 ns -- (3) SP30 TdoF SDOX Data Output Fall Time SP31 TdoR SDOX Data Output Rise Time(3) SP35 TscH2doV, SDOX Data Output Valid after TscL2doV SCKX Edge -- -- 30 ns -- SP40 TdiV2scH, Setup Time of SDIX Data Input TdiV2scL to SCKX Edge 20 -- -- ns -- SP41 TscH2diL, Hold Time of SDIX Data Input TscL2diL to SCKX Edge 20 -- -- ns -- SP50 TssL2scH, SSX to SCKX or SCKX input TssL2scL 120 -- -- ns -- SP51 TssH2doZ SS to SDOX Output Hi-Impedance(4) 10 -- 50 ns -- SP52 TscH2ssH SSX after SCKX Edge TscL2ssH 1.5 TCY + 40 -- -- ns -- SP60 TssL2doV SDOX Data Output Valid after SCKX Edge -- -- 50 ns -- Note 1: 2: 3: 4: These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. The minimum clock period for SCK is 100 ns. Therefore, the clock generated in master mode must not violate this specification. Assumes 50 pF load on all SPI pins. DS70082G-page 210 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-21: I2C BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE) SCL IM31 IM34 IM30 IM33 SDA Stop Condition Start Condition Note: Refer to Figure 24-3 for load conditions. FIGURE 24-22: I2C BUS DATA TIMING CHARACTERISTICS (MASTER MODE) IM20 IM21 IM11 IM10 SCL IM11 IM26 IM10 IM25 IM33 SDA In IM40 IM40 IM45 SDA Out Note: Refer to Figure 24-3 for load conditions. 2004 Microchip Technology Inc. Preliminary DS70082G-page 211 dsPIC30F TABLE 24-33: I2C BUS DATA TIMING REQUIREMENTS (MASTER MODE) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param Symbol No. IM10 Min(1) Max Units Conditions TLO:SCL Clock Low Time 100 kHz mode TCY / 2 (BRG + 1) -- ms -- 400 kHz mode TCY / 2 (BRG + 1) -- ms -- 1 MHz mode(2) TCY / 2 (BRG + 1) -- ms -- Clock High Time 100 kHz mode TCY / 2 (BRG + 1) -- ms -- 400 kHz mode TCY / 2 (BRG + 1) -- ms -- THI:SCL IM11 Characteristic TCY / 2 (BRG + 1) -- ms 100 kHz mode -- 300 ns 400 kHz mode 20 + 0.1 CB 300 ns 1 MHz mode(2) -- 100 ns 100 kHz mode -- 1000 ns 400 kHz mode 20 + 0.1 CB 300 ns 1 MHz mode(2) -- 300 ns 100 kHz mode 250 -- ns 400 kHz mode 100 -- ns 1 MHz mode(2) TBD -- ns 100 kHz mode 0 -- ns 400 kHz mode 0 0.9 ms 1 MHz mode(2) TBD -- ns 100 kHz mode TCY / 2 (BRG + 1) -- ms 400 kHz mode TCY / 2 (BRG + 1) -- ms 1 MHz mode(2) TCY / 2 (BRG + 1) -- ms 100 kHz mode TCY / 2 (BRG + 1) -- ms 400 kHz mode TCY / 2 (BRG + 1) -- ms 1 MHz mode(2) TCY / 2 (BRG + 1) -- ms 100 kHz mode TCY / 2 (BRG + 1) -- ms 400 kHz mode TCY / 2 (BRG + 1) -- ms 1 MHz mode(2) TCY / 2 (BRG + 1) -- ms 100 kHz mode TCY / 2 (BRG + 1) -- ns 400 kHz mode TCY / 2 (BRG + 1) -- ns 1 MHz mode(2) TCY / 2 (BRG + 1) -- ns 100 kHz mode -- 3500 ns -- 400 kHz mode -- 1000 ns -- 1 MHz mode TF:SCL IM20 TR:SCL IM21 SDA and SCL Fall Time SDA and SCL Rise Time TSU:DAT Data Input Setup Time IM25 THD:DAT Data Input Hold Time IM26 TSU:STA IM30 Start Condition Setup Time THD:STA Start Condition Hold Time IM31 TSU:STO Stop Condition Setup Time IM33 THD:STO Stop Condition IM34 Hold Time TAA:SCL IM40 Output Valid From Clock (2) -- -- ns 100 kHz mode 4.7 -- ms 400 kHz mode 1.3 -- ms 1 MHz mode(2) TBD -- ms -- 400 pF 1 MHz mode TBF:SDA Bus Free Time IM45 CB IM50 Note 1: 2: (2) Bus Capacitive Loading -- CB is specified to be from 10 to 400 pF CB is specified to be from 10 to 400 pF -- -- Only relevant for repeated Start condition After this period the first clock pulse is generated -- -- -- Time the bus must be free before a new transmission can start BRG is the value of the I2C Baud Rate Generator. Refer to Section 21 "Inter-Integrated CircuitTM (I2C)" in the dsPIC30F Family Reference Manual. Maximum pin capacitance = 10 pF for all I2C pins (for 1 MHz mode only). DS70082G-page 212 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-23: I2C BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE) SCL IS34 IS31 IS30 IS33 SDA Stop Condition Start Condition FIGURE 24-24: I2C BUS DATA TIMING CHARACTERISTICS (SLAVE MODE) IS20 IS21 IS11 IS10 SCL IS30 IS26 IS31 IS25 IS33 SDA In IS40 IS40 IS45 SDA Out 2004 Microchip Technology Inc. Preliminary DS70082G-page 213 dsPIC30F TABLE 24-34: I2C BUS DATA TIMING REQUIREMENTS (SLAVE MODE) Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. IS10 IS11 IS20 IS21 IS25 IS26 IS30 IS31 IS33 IS34 IS40 IS45 IS50 Note 1: Symbol TLO:SCL THI:SCL TF:SCL TR:SCL TSU:DAT THD:DAT TSU:STA THD:STA TSU:STO THD:STO TAA:SCL TBF:SDA CB Characteristic Clock Low Time Clock High Time SDA and SCL Fall Time SDA and SCL Rise Time Data Input Setup Time Data Input Hold Time Min Max Units 100 kHz mode 4.7 -- s Device must operate at a minimum of 1.5 MHz 400 kHz mode 1.3 -- s Device must operate at a minimum of 10 MHz. 1 MHz mode(1) 0.5 -- s 100 kHz mode 4.0 -- s Device must operate at a minimum of 1.5 MHz 400 kHz mode 0.6 -- s Device must operate at a minimum of 10 MHz 1 MHz mode(1) 0.5 -- s 100 kHz mode -- 300 ns 400 kHz mode 20 + 0.1 CB 300 ns 1 MHz mode(1) -- 100 ns 100 kHz mode -- 1000 ns 400 kHz mode 20 + 0.1 CB 300 ns 1 MHz mode(1) -- 300 ns 100 kHz mode 250 -- ns 400 kHz mode 100 -- ns 1 MHz mode(1) 100 -- ns 100 kHz mode 0 -- ns 400 kHz mode 0 0.9 1 MHz mode(1) s 0 0.3 s 100 kHz mode 4.7 -- s 400 kHz mode 0.6 -- 1 MHz mode(1) s 0.25 -- s 100 kHz mode 4.0 -- s 400 kHz mode 0.6 -- 1 MHz mode(1) s 0.25 -- s 100 kHz mode 4.7 -- s 400 kHz mode 0.6 -- 1 MHz mode(1) s 0.6 -- s Stop Condition 100 kHz mode 4000 -- ns Hold Time 400 kHz mode 600 -- ns 1 MHz mode(1) 250 Start Condition Setup Time Start Condition Hold Time Stop Condition Setup Time 0 3500 ns 0 1000 ns 1 MHz mode(1) 0 350 ns 100 kHz mode 4.7 -- s 400 kHz mode 1.3 -- 1 MHz mode(1) s 0.5 -- s -- 400 pF Bus Capacitive Loading -- -- CB is specified to be from 10 to 400 pF CB is specified to be from 10 to 400 pF -- -- Only relevant for repeated Start condition After this period the first clock pulse is generated -- -- ns Output Valid From 100 kHz mode Clock 400 kHz mode Bus Free Time Conditions -- Time the bus must be free before a new transmission can start -- Maximum pin capacitance = 10 pF for all I2C pins (for 1 MHz mode only). DS70082G-page 214 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-25: CXTX Pin (output) CAN MODULE I/O TIMING CHARACTERISTICS New Value Old Value CA10 CA11 CXRX Pin (input) CA20 TABLE 24-35: CAN MODULE I/O TIMING REQUIREMENTS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Characteristic(1) Symbol Min Typ(2) Max Units Conditions CA10 TioF Port Output Fall Time -- 10 25 ns -- CA11 TioR Port Output Rise Time -- 10 25 ns -- CA20 Tcwf Pulse Width to Trigger CAN Wakeup Filter 500 ns -- Note 1: 2: These parameters are characterized but not tested in manufacturing. Data in "Typ" column is at 5V, 25C unless otherwise stated. Parameters are for design guidance only and are not tested. 2004 Microchip Technology Inc. Preliminary DS70082G-page 215 dsPIC30F TABLE 24-36: 10-BIT HIGH-SPEED A/D MODULE SPECIFICATIONS Standard Operating Conditions: 2.7V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic Min. Typ Max. Units Conditions Device Supply AD01 AVDD Module VDD Supply Greater of VDD - 0.3 or 2.7 Lesser of VDD + 0.3 or 5.5 V -- AD02 AVSS Module VSS Supply Vss - 0.3 VSS + 0.3 V -- AD05 VREFH Reference Voltage High AVss+2.7 AVDD V -- AD06 VREFL Reference Voltage Low AVss AD07 VREF Absolute Reference Voltage AVss - 0.3 AD08 IREF Current Drain AD10 VINH-VINL Full-Scale Input Span AD11 VIN Absolute Input Voltage AVDD + 0.3 V -- AD12 -- Leakage Current -- 0.001 0.244 A VINL = AVSS = VREFL = 0V, AVDD = VREFH = 5V Source Impedance = 5 k AD13 -- Leakage Current -- 0.001 0.244 A VINL = AVSS = VREFL = 0V, AVDD = VREFH = 3V Source Impedance = 5 k -- Reference Inputs -- AVDD - 2.7 V -- AVDD + 0.3 V -- 300 3 A A A/D operating A/D off VREFH V -- 200 .001 Analog Input VREFL AVSS - 0.3 AD15 RSS Switch Resistance -- 3.2K AD16 CSAMPLE Sample Capacitor -- 4.4 AD17 RIN -- Recommended Impedance Of Analog Voltage Source 5K -- pF -- -- bits -- DC Accuracy AD20 Nr Resolution AD21 INL Integral Nonlinearity -- 0.5 < 1 LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 5V AD21A INL Integral Nonlinearity -- 0.5 < 1 LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 3V AD22 DNL Differential Nonlinearity -- 0.5 < 1 LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 5V AD22A DNL Differential Nonlinearity -- 0.5 < 1 LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 3V GERR Gain Error -- 0.75 TBD LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 5V AD23A GERR Gain Error -- 0.75 TBD LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 3V AD23 Note 1: 2: 10 data bits Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. The A/D conversion result never decreases with an increase in the input voltage, and has no missing codes. DS70082G-page 216 Preliminary 2004 Microchip Technology Inc. dsPIC30F TABLE 24-36: 10-BIT HIGH-SPEED A/D MODULE SPECIFICATIONS (CONTINUED) Standard Operating Conditions: 2.7V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param No. Symbol Characteristic Min. Typ Max. Units Conditions EOFF Offset Error -- 0.75 TBD LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 5V AD24A EOFF Offset Error -- 0.75 TBD LSb VINL = AVSS = VREFL = 0V, AVDD = VREFH = 3V AD25 -- Monotonicity(2) -- -- -- -- AD26 CMRR Common-Mode Rejection -- TBD -- dB -- AD27 PSRR Power Supply Rejection Ratio -- TBD -- dB -- AD28 CTLK Channel to Channel Crosstalk -- TBD -- dB -- AD30 THD Total Harmonic Distortion -- TBD -- dB -- AD31 SINAD Signal to Noise and Distortion -- TBD -- dB -- AD32 SFDR Spurious Free Dynamic Range -- TBD -- dB -- AD33 FNYQ Input Signal Bandwidth -- -- 250 kHz -- AD34 ENOB Effective Number of Bits -- TBD TBD bits -- AD24 Guaranteed Dynamic Performance Note 1: 2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. The A/D conversion result never decreases with an increase in the input voltage, and has no missing codes. 2004 Microchip Technology Inc. Preliminary DS70082G-page 217 dsPIC30F FIGURE 24-26: 10-BIT HIGH-SPEED A/D CONVERSION TIMING CHARACTERISTICS (CHPS = 01, SIMSAM = 0, ASAM = 0, SSRC = 000) AD50 ADCLK Instruction Execution BSF SAMP BCF SAMP SAMP ch0_dischrg ch0_samp ch1_dischrg ch1_samp eoc AD61 AD60 TSAMP AD55 AD55 DONE ADIF ADRES(0) ADRES(1) 1 2 3 4 5 6 8 9 5 6 8 9 1 - Software sets ADCON. SAMP to start sampling. 2 - Sampling starts after discharge period. TSAMP is described in the dsPIC30F MCU Family Reference Manual, Section 17. 3 - Software clears ADCON. SAMP to start conversion. 4 - Sampling ends, conversion sequence starts. 5 - Convert bit 9. 6 - Convert bit 8. 8 - Convert bit 0. 9 - One TAD for end of conversion. DS70082G-page 218 Preliminary 2004 Microchip Technology Inc. dsPIC30F FIGURE 24-27: 10-BIT HIGH-SPEED A/D CONVERSION TIMING CHARACTERISTICS (CHPS = 01, SIMSAM = 0, ASAM = 1, SSRC = 111, SAMC = 00001) AD50 ADCLK Instruction Execution BSF ADON SAMP ch0_dischrg ch0_samp ch1_dischrg ch1_samp eoc TSAMP TSAMP AD55 TCONV AD55 DONE ADIF ADRES(0) ADRES(1) 1 2 3 4 5 6 7 3 4 5 6 8 3 1 - Software sets ADCON. ADON to start AD operation. 5 - Convert bit 0. 2 - Sampling starts after discharge period. TSAMP is described in the dsPIC30F Family Reference Manual, Section 17. 6 - One TAD for end of conversion. 3 - Convert bit 9. 8 - Sample for time specified by SAMC. TSAMP is described in the dsPIC30F Family Reference Manual, Section 17. 4 - Convert bit 8. 2004 Microchip Technology Inc. 4 7 - Begin conversion of next channel Preliminary DS70082G-page 219 dsPIC30F TABLE 24-37: 10-BIT HIGH-SPEED A/D CONVERSION TIMING REQUIREMENTS Standard Operating Conditions: 2.7V to 5.5V (unless otherwise stated) Operating temperature -40C TA +85C for Industrial -40C TA +125C for Extended AC CHARACTERISTICS Param Symbol No. Characteristic Min. Typ Max. Units Conditions Clock Parameters AD50 TAD A/D Clock Period AD51 tRC A/D Internal RC Oscillator Period AD55 tCONV Conversion Time AD56 FCNV Throughput Rate AD57 TSAMP Sample Time AD60 tPCS Conversion Start from Sample Trigger AD61 tPSS AD62 AD63 154 256 700 900 ns 1100 VDD = 5V (Note 1) VDD = 2.7V (Note 1) ns -- 12 TAD ns -- 500 300 ksps ksps 1 TAD ns VDD = 3-5.5V Conversion Rate VDD = VREF = 5V VDD = VREF = 3V Timing Parameters Note 1: -- -- TAD ns -- Sample Start from Setting Sample (SAMP) Bit 0.5 TAD -- 1.5 TAD ns -- tCSS Conversion Completion to Sample Start (ASAM = 1) -- -- TBD ns -- tDPU Time to Stabilize Analog Stage from A/D Off to A/D On -- -- TBD s -- Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity performance, especially at elevated temperatures. DS70082G-page 220 Preliminary 2004 Microchip Technology Inc. dsPIC30F 25.0 PACKAGING INFORMATION 25.1 Package Marking Information 28-Lead QFN Example XXXXXXX XXXXXXX dsPIC30F2010 30I/MM-ES YYWWNNN 040700U 28-Lead PDIP (Skinny DIP) Example XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNNN 28-Lead SOIC dsPIC30F3010-30I/SP 0448017 Example XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX YYWWNNN 40-Lead PDIP dsPIC30F4012-30I/SO 0448017 Example XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX YYWWNNN Legend: Note: XX...X Y YY WW NNN dsPIC30F4011-30I/P 0448017 Customer specific information* Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line thus limiting the number of available characters for customer specific information. * Standard device marking consists of Microchip part number, year code, week code, and traceability code. For device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. 2004 Microchip Technology Inc. Preliminary DS70082G-page 221 dsPIC30F 25.1 Package Marking Information (Continued) 44-Lead QFN Example XXXXXXX XXXXXXX dsPIC30F4011 30I/MM-ES YYWWNNN 040700U 44-Lead TQFP Example dsPIC30F 4011-30I/PT XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN 0448017 64-Lead TQFP Example XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN dsPIC30F 5015-30I/PT 0436017 80-Lead TQFP Example XXXXXXXXXXXX XXXXXXXXXXXX YYWWNNN DS70082G-page 222 dsPIC30F6010 -30I/PF 0436017 Preliminary 2004 Microchip Technology Inc. dsPIC30F 28-Lead Plastic Quad Flat No Lead Package 6x6x0.9 mm Body (QFN-S) - With 0.40 mm Contact Length (Saw Singulated) E2 E EXPOSED METAL PAD e D D2 b 2 1 n OPTIONAL INDEX AREA TOP VIEW ALTERNATE INDEX INDICATORS L BOTTOM VIEW A1 A Number of Pins Pitch Overall Height Standoff Overall Width Exposed Pad Width Overall Length Exposed Pad Length Lead Width Lead Length Units Dimension Limits n e A A1 E E2 D D2 b L MIN .031 .000 .232 .169 .232 .169 .013 .012 INCHES NOM 28 .026 BSC .035 .001 .236 .175 .236 .175 .015 .016 MAX .039 .002 .240 .177 .240 .177 .017 .020 MILLIMETERS* NOM 28 0.65 BSC 0.90 0.80 0.02 0.00 6.00 5.90 4.30 4.45 5.90 6.00 4.30 4.45 0.33 0.38 0.30 0.40 MIN MAX 1.00 0.05 6.10 4.50 6.10 4.50 0.43 0.50 *Controlling Parameter Notes: JEDEC equivalent: MO-220 Drawing No. C04-124 2004 Microchip Technology Inc. Revised 05/24/04 Preliminary DS70082G-page 223 dsPIC30F 28-Lead Skinny Plastic Dual In-line - 300 mil Body (PDIP) E1 D 2 n 1 E A2 A L c B1 A1 eB Units Number of Pins Pitch p B Dimension Limits n p INCHES* MIN NOM MILLIMETERS MAX MIN NOM 28 MAX 28 .100 2.54 Top to Seating Plane A .140 .150 .160 3.56 3.81 4.06 Molded Package Thickness A2 .125 .130 .135 3.18 3.30 3.43 Base to Seating Plane A1 .015 Shoulder to Shoulder Width E .300 .310 .325 7.62 7.87 8.26 Molded Package Width E1 .275 .285 .295 6.99 7.24 7.49 Overall Length D 1.345 1.365 1.385 34.16 34.67 35.18 Tip to Seating Plane .125 .130 .135 3.18 3.30 3.43 Lead Thickness L c .008 .012 .015 0.20 0.29 0.38 Upper Lead Width B1 .040 .053 .065 1.02 1.33 1.65 B .016 .019 .022 0.41 0.48 0.56 eB .320 .350 .430 8.13 8.89 10.92 Lower Lead Width Overall Row Spacing Mold Draft Angle Top Mold Draft Angle Bottom 0.38 5 10 15 5 10 15 5 10 15 5 10 15 * Controlling Parameter Significant Characteristic Notes: Dimension D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MO-095 Drawing No. C04-070 DS70082G-page 224 Preliminary 2004 Microchip Technology Inc. dsPIC30F 28-Lead Plastic Small Outline - Wide, 300 mil Body (SOIC) E E1 p D B 2 1 n h 45 c A2 A L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Top Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic A A2 A1 E E1 D h L c B A1 MIN .093 .088 .004 .394 .288 .695 .010 .016 0 .009 .014 0 0 INCHES* NOM 28 .050 .099 .091 .008 .407 .295 .704 .020 .033 4 .011 .017 12 12 MAX .104 .094 .012 .420 .299 .712 .029 .050 8 .013 .020 15 15 MILLIMETERS NOM 28 1.27 2.36 2.50 2.24 2.31 0.10 0.20 10.01 10.34 7.32 7.49 17.65 17.87 0.25 0.50 0.41 0.84 0 4 0.23 0.28 0.36 0.42 0 12 0 12 MIN MAX 2.64 2.39 0.30 10.67 7.59 18.08 0.74 1.27 8 0.33 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-013 Drawing No. C04-052 2004 Microchip Technology Inc. Preliminary DS70082G-page 225 dsPIC30F 40-Lead Plastic Dual In-line - 600 mil Body (PDIP) E1 D 2 1 n E A2 A L c B1 A1 eB p B Units Dimension Limits n p MIN INCHES* NOM 40 .100 .175 .150 MAX MILLIMETERS NOM 40 2.54 4.06 4.45 3.56 3.81 0.38 15.11 15.24 13.46 13.84 51.94 52.26 3.05 3.30 0.20 0.29 0.76 1.27 0.36 0.46 15.75 16.51 5 10 5 10 MIN Number of Pins Pitch Top to Seating Plane A .160 .190 Molded Package Thickness A2 .140 .160 Base to Seating Plane A1 .015 Shoulder to Shoulder Width E .595 .600 .625 Molded Package Width .530 .545 .560 E1 Overall Length D 2.045 2.058 2.065 Tip to Seating Plane L .120 .130 .135 c Lead Thickness .008 .012 .015 Upper Lead Width .030 .050 .070 B1 Lower Lead Width B .014 .018 .022 eB Overall Row Spacing .620 .650 .680 Mold Draft Angle Top 5 10 15 Mold Draft Angle Bottom 5 10 15 * Controlling Parameter Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MO-011 Drawing No. C04-016 DS70082G-page 226 Preliminary MAX 4.83 4.06 15.88 14.22 52.45 3.43 0.38 1.78 0.56 17.27 15 15 2004 Microchip Technology Inc. dsPIC30F 44-Lead Plastic Thin Quad Flatpack 10x10x1 mm Body, 1.0/0.10 mm Lead Form (TQFP) E E1 #leads=n1 p D1 D 2 1 B n CH x 45 A c L A1 A2 (F) Units Dimension Limits n p Number of Pins Pitch Pins per Side Overall Height Molded Package Thickness Standoff Foot Length Footprint (Reference) Foot Angle Overall Width Overall Length Molded Package Width Molded Package Length Lead Thickness Lead Width Pin 1 Corner Chamfer Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter Significant Characteristic n1 A A2 A1 L (F) E D E1 D1 c B CH MIN .039 .037 .002 .018 0 .463 .463 .390 .390 .004 .012 .025 5 5 INCHES NOM 44 .031 11 .043 .039 .004 .024 .039 3.5 .472 .472 .394 .394 .006 .015 .035 10 10 MAX .047 .041 .006 .030 7 .482 .482 .398 .398 .008 .017 .045 15 15 MILLIMETERS* NOM 44 0.80 11 1.00 1.10 0.95 1.00 0.05 0.10 0.45 0.60 1.00 0 3.5 11.75 12.00 11.75 12.00 9.90 10.00 9.90 10.00 0.09 0.15 0.30 0.38 0.64 0.89 5 10 5 10 MIN MAX 1.20 1.05 0.15 0.75 7 12.25 12.25 10.10 10.10 0.20 0.44 1.14 15 15 Notes: Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MS-026 Drawing No. C04-076 2004 Microchip Technology Inc. Preliminary DS70082G-page 227 dsPIC30F 44-Lead Plastic Quad Flat No Lead Package 8x8 mm Body (QFN) DS70082G-page 228 Preliminary 2004 Microchip Technology Inc. dsPIC30F 64-Lead Plastic Thin Quad Flatpack 10x10x1 mm Body, 1.0/0.10 mm Lead Form (TQFP) E E1 #leads=n1 p D1 D 2 1 B n CH x 45 A c L A2 A1 (F) Units Dimension Limits n p MIN INCHES NOM 64 .020 16 .043 .039 .006 .024 .039 3.5 .472 .472 .394 .394 .007 .009 .035 10 10 MAX MILLIMETERS* NOM 64 0.50 16 1.00 1.10 0.95 1.00 0.05 0.15 0.45 0.60 1.00 0 3.5 11.75 12.00 11.75 12.00 9.90 10.00 9.90 10.00 0.13 0.18 0.17 0.22 0.64 0.89 5 10 5 10 MIN Number of Pins Pitch Pins per Side n1 Overall Height A .039 .047 Molded Package Thickness A2 .037 .041 Standoff A1 .002 .010 Foot Length L .018 .030 (F) Footprint (Reference) Foot Angle 0 7 Overall Width E .463 .482 Overall Length D .463 .482 Molded Package Width E1 .390 .398 Molded Package Length D1 .390 .398 c Lead Thickness .005 .009 Lead Width B .007 .011 Pin 1 Corner Chamfer CH .025 .045 Mold Draft Angle Top 5 15 Mold Draft Angle Bottom 5 15 *Controlling Parameter Notes: Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. MAX 1.20 1.05 0.25 0.75 7 12.25 12.25 10.10 10.10 0.23 0.27 1.14 15 15 JEDEC Equivalent: MS-026 Drawing No. C04-085 2004 Microchip Technology Inc. Preliminary DS70082G-page 229 dsPIC30F 64-Lead Plastic Thin Quad Flatpack 14x14x1 mm Body, 1.0/0.10 mm Lead Form (TQFP) E E1 #leads=n1 p D1 D B 2 1 n A A1 c A2 L (F) Units Dimension Limits n p MIN INCHES NOM 64 .031 16 MAX MIN MILLIMETERS* NOM 64 0.80 16 Number of Pins Pitch Pins per Side n1 .047 Overall Height A .039 .041 0.95 1.00 .037 Molded Package Thickness A2 .006 0.05 Standoff .002 A1 .030 0.45 0.60 .024 Foot Length L .018 (F) 1.00 REF .039 REF Footprint 7 0 3.5 3.5 Foot Angle 0 Overall Width .630 BSC 16.00 BSC E .630 BSC Overall Length 16.00 BSC D .551 BSC 14.00 BSC E1 Molded Package Width .551 BSC 14.00 BSC D1 Molded Package Length c .008 0.09 .004 Lead Thickness 0.37 .018 .015 Lead Width 0.30 B .012 13 11 12 12 11 Mold Draft Angle Top 11 12 12 13 11 Mold Draft Angle Bottom *Controlling Parameter Notes: Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. MAX 1.20 1.05 0.15 0.75 7 0.20 0.45 13 13 JEDEC Equivalent: MS-026 Drawing No. C04-066 DS70082G-page 230 Preliminary 2004 Microchip Technology Inc. dsPIC30F 80-Lead Plastic Thin Quad Flatpack 12x12x1 mm Body, 1.0/0.10 mm Lead Form (TQFP) E E1 #leads=n1 p D1 D 2 1 B n CH x 45 A c L A2 A1 (F) Units Dimension Limits n p MIN INCHES NOM 80 .020 20 .043 .039 .004 .024 .039 3.5 .551 .551 .472 .472 .006 .009 .035 10 10 MAX MILLIMETERS* NOM 80 0.50 20 1.00 1.10 0.95 1.00 0.05 0.10 0.45 0.60 1.00 0 3.5 13.75 14.00 13.75 14.00 11.75 12.00 11.75 12.00 0.09 0.15 0.17 0.22 0.64 0.89 5 10 5 10 MIN Number of Pins Pitch Pins per Side n1 Overall Height A .047 .039 Molded Package Thickness A2 .037 .041 Standoff A1 .002 .006 Foot Length L .018 .030 (F) Footprint (Reference) Foot Angle 0 7 Overall Width E .541 .561 Overall Length D .541 .561 Molded Package Width E1 .463 .482 Molded Package Length D1 .463 .482 c Lead Thickness .004 .008 Lead Width B .007 .011 Pin 1 Corner Chamfer CH .025 .045 Mold Draft Angle Top 5 15 Mold Draft Angle Bottom 5 15 *Controlling Parameter Notes: Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. MAX 1.20 1.05 0.15 0.75 7 14.25 14.25 12.25 12.25 0.20 0.27 1.14 15 15 JEDEC Equivalent: MS-026 Drawing No. C04-092 2004 Microchip Technology Inc. Preliminary DS70082G-page 231 dsPIC30F 80-Lead Plastic Thin Quad Flatpack 14x14x1 mm Body, 1.0/0.10 mm Lead Form (TQFP) E E1 #leads=n1 p D1 D B 2 1 n A A1 c A2 L (F) Units Dimension Limits n p MIN INCHES NOM 80 .026 20 MAX MIN Number of Pins Pitch n1 Pins per Side .047 A Overall Height .039 .041 A2 .037 Molded Package Thickness .006 A1 .002 Standoff .024 .030 L .018 Foot Length (F) .039 Footprint (Reference) 7 3.5 0 Foot Angle .630 BSC E Overall Width .630 BSC D Overall Length E1 Molded Package Width .551 BSC D1 Molded Package Length .551 BSC c .008 .004 Lead Thickness .015 .013 B .011 Lead Width 13 Mold Draft Angle Top 12 11 Mold Draft Angle Bottom 11 12 13 *Controlling Parameter Notes: Dimensions D1 and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. 0.95 0.05 0.45 MILLIMETERS* NOM 80 0.65 20 1.00 0.60 1.00 0 3.5 16.00 BSC 16.00 BSC 14.00 BSC 14.00 BSC 0.09 0.27 0.32 11 12 12 11 MAX 1.20 1.05 0.15 0.75 7 0.20 0.37 13 13 JEDEC Equivalent: MS-026 Drawing No. C04-116 DS70082G-page 232 Preliminary 2004 Microchip Technology Inc. dsPIC30F INDEX Numerics 10-bit High Speed A/D Aborting a Conversion .............................................. 146 ADCHS ..................................................................... 143 ADCON1 ................................................................... 143 ADCON2 ................................................................... 143 ADCON3 ................................................................... 143 ADCSSL.................................................................... 143 ADPCFG ................................................................... 143 Configuring Analog Port Pins.................................... 148 Connection Considerations....................................... 148 Conversion Operation ............................................... 145 Effects of a Reset...................................................... 147 Operation During CPU Idle Mode ............................. 147 Operation During CPU Sleep Mode.......................... 147 Output Formats ......................................................... 147 Power-down Modes .................................................. 147 Programming the Start of Conversion Trigger .......... 146 Register Map............................................................. 149 Result Buffer ............................................................. 145 Selecting the Conversion Clock ................................ 146 Selecting the Conversion Sequence......................... 145 10-bit High Speed Analog-to-Digital Converter. See A/D 16-bit Integer and Fractional Modes Example .................... 28 16-bit Up/Down Position Counter Mode.............................. 96 Count Direction Status ................................................ 96 Error Checking ............................................................ 96 6-Ouput PWM Register Map............................................................. 110 6-Ouput PWM vs. 8-Output PWM Feature Summary ..................................................... 101 8-Output PWM Register Map............................................................. 110 A A/D .................................................................................... 143 AC Characteristics ............................................................ 192 Load Conditions ........................................................ 192 AC Temperature and Voltage Specifications .................... 192 Address Generator Units .................................................... 43 Alternate 16-bit Timer/Counter............................................ 97 Alternate Vector Table ........................................................ 55 Assembler MPASM Assembler................................................... 173 Automatic Clock Stretch.................................................... 118 During 10-bit Addressing (STREN = 1)..................... 118 During 7-bit Addressing (STREN = 1)....................... 118 Receive Mode ........................................................... 118 Transmit Mode .......................................................... 118 B Bandgap Start-up Time Requirements............................................................ 197 Timing Characteristics .............................................. 197 Barrel Shifter ....................................................................... 30 Bit-Reversed Addressing .................................................... 49 Example ...................................................................... 49 Implementation ........................................................... 49 Modifier Values (table) ................................................ 50 Sequence Table (16-Entry)......................................... 50 Block Diagrams 10-bit High Speed A/D Functional............................. 144 16-bit Timer1 Module .................................................. 73 2004 Microchip Technology Inc. 16-bit Timer4 .............................................................. 84 16-bit Timer5 .............................................................. 84 32-bit Timer4/5 ........................................................... 83 8-Output PWM Module ............................................. 102 CAN Buffers and Protocol Engine ............................ 132 Dedicated Port Structure ............................................ 67 DSP Engine ................................................................ 27 dsPIC30F6010............................................................ 14 External Power-on Reset Circuit .............................. 159 I2C ............................................................................ 116 Input Capture Mode.................................................... 87 Oscillator System...................................................... 153 Output Compare Mode ............................................... 91 Quadrature Encoder Interface .................................... 95 Reset System ........................................................... 157 Shared Port Structure................................................. 68 SPI............................................................................ 112 SPI Master/Slave Connection................................... 112 UART Receiver......................................................... 124 UART Transmitter..................................................... 123 BOR Characteristics ......................................................... 191 BOR. See Brown-out Reset Brown-out Reset Characteristics.......................................................... 190 Timing Requirements ............................................... 197 Brown-out Reset (BOR).................................................... 151 C C Compilers MPLAB C17.............................................................. 174 MPLAB C18.............................................................. 174 MPLAB C30.............................................................. 174 CAN Module ..................................................................... 131 CAN1 Register Map.................................................. 138 CAN2 Register Map.................................................. 140 I/O Timing Characteristics ........................................ 215 I/O Timing Requirements.......................................... 215 Overview................................................................... 131 Center Aligned PWM ........................................................ 105 CLKOUT and I/O Timing Characteristics.......................................................... 195 Requirements ........................................................... 195 Code Examples Data EEPROM Block Erase ....................................... 64 Data EEPROM Block Write ........................................ 66 Data EEPROM Read.................................................. 63 Data EEPROM Word Erase ....................................... 64 Data EEPROM Word Write ........................................ 65 Erasing a Row of Program Memory ........................... 59 Initiating a Programming Sequence ........................... 61 Loading Write Latches................................................ 60 Code Protection ................................................................ 151 Complementary PWM Operation...................................... 106 Configuring Analog Port Pins.............................................. 68 Control Registers ................................................................ 58 NVMADR .................................................................... 58 NVMADRU ................................................................. 58 NVMCON.................................................................... 58 NVMKEY .................................................................... 58 Core Architecture Overview..................................................................... 19 Core Register Map.............................................................. 39 Preliminary DS70082G-page 233 dsPIC30F D E Data Accumulators and Adder/ ..................................... 29, 30 Data Address Space ........................................................... 35 Access RAM ............................................................... 37 Alignment .................................................................... 36 Alignment (Figure) ...................................................... 36 Effect of Invalid Memory Accesses ............................. 36 MCU and DSP (MAC Class) Instructions Example..... 39 Memory Map ............................................................... 36 Memory Map Example ................................................ 38 Spaces ........................................................................ 35 Width........................................................................... 36 Data EEPROM Memory ...................................................... 63 Erasing ........................................................................ 64 Erasing, Block ............................................................. 64 Erasing, Word ............................................................. 64 Protection Against Spurious Write .............................. 66 Reading....................................................................... 63 Write Verify ................................................................. 66 Writing ......................................................................... 65 Writing, Block .............................................................. 66 Writing, Word .............................................................. 65 Data Space Organization .................................................... 43 DC Characteristics ............................................................ 180 BOR .......................................................................... 191 Brown-out Reset ....................................................... 190 I/O Pin Input Specifications ....................................... 188 I/O Pin Output Specifications .................................... 189 Idle Current (IIDLE) .................................................... 184 Low-Voltage Detect................................................... 189 LVDL ......................................................................... 190 Operating Current (IDD)............................................. 181 Power-Down Current (IPD) ........................................ 186 Program and EEPROM............................................. 191 Temperature and Voltage Specifications .................. 180 Dead-Time Generators ..................................................... 106 Assignment ............................................................... 107 Ranges...................................................................... 107 Selection Bits ............................................................ 107 Demonstration Boards PICDEM 1 ................................................................. 176 PICDEM 17 ............................................................... 176 PICDEM 18R PIC18C601/801 .................................. 177 PICDEM 2 Plus ......................................................... 176 PICDEM 3 PIC16C92X ............................................. 176 PICDEM 4 ................................................................. 176 PICDEM LIN PIC16C43X ......................................... 177 PICDEM USB PIC16C7X5........................................ 177 PICDEM.net Internet/Ethernet .................................. 176 Development Support ....................................................... 173 Device Configuration Register Map............................................................. 164 Device Configuration Registers......................................... 162 FBORPOR ................................................................ 162 FGS........................................................................... 162 FOSC ........................................................................ 162 FWDT........................................................................ 162 Device Overview ................................................................. 13 Divide Support..................................................................... 25 DSP Engine......................................................................... 26 Multiplier...................................................................... 28 Dual Output Compare Match Mode .................................... 92 Continuous Pulse Mode .............................................. 92 Single Pulse Mode ...................................................... 92 Edge Aligned PWM........................................................... 105 Electrical Characteristics .................................................. 179 AC............................................................................. 192 DC ............................................................................ 180 Equations A/D Conversion Clock............................................... 146 Baud Rate......................................................... 127, 137 PWM Period.............................................................. 105 PWM Resolution ....................................................... 105 Serial Clock Rate ...................................................... 120 Errata .................................................................................. 12 Evaluation and Programming Tools.................................. 177 Exception Processing ......................................................... 51 Interrupt Priority .......................................................... 52 Natural Order Priority (table)....................................... 52 Exception Sequence Trap Sources .............................................................. 53 External Clock Timing Characteristics Type A, B and C Timer ............................................. 198 External Clock Timing Requirements ............................... 193 Type A Timer ............................................................ 198 Type B Timer ............................................................ 199 Type C Timer ............................................................ 199 External Interrupt Requests ................................................ 55 DS70082G-page 234 F Fast Context Saving ........................................................... 55 Firmware Instructions ....................................................... 165 Flash Program Memory ...................................................... 57 In-Circuit Serial Programming (ICSP)......................... 57 Run Time Self-Programming (RTSP) ......................... 57 Table Instruction Operation Summary ........................ 57 I I/O Pin Specifications Input.......................................................................... 188 Output ....................................................................... 189 I/O Ports.............................................................................. 67 Parallel I/O (PIO) ........................................................ 67 I2C..................................................................................... 115 I2C 10-bit Slave Mode Operation...................................... 117 Reception ................................................................. 118 Transmission ............................................................ 117 I2C 7-bit Slave Mode Operation........................................ 117 Reception ................................................................. 117 Transmission ............................................................ 117 I2C Master Mode Baud Rate Generator ............................................... 120 Clock Arbitration ....................................................... 120 Multi-Master Communication, Bus Collision and Bus Arbitration ........................................... 120 Reception ................................................................. 119 Transmission ............................................................ 119 I2C Module........................................................................ 115 Addresses................................................................. 117 Bus Data Timing Characteristics Master Mode..................................................... 211 Slave Mode....................................................... 213 Bus Data Timing Requirements Master Mode..................................................... 212 Slave Mode....................................................... 214 Bus Start/Stop Bits Timing Characteristics Master Mode..................................................... 211 Slave Mode....................................................... 213 Preliminary 2004 Microchip Technology Inc. dsPIC30F General Call Address Support .................................. 119 Interrupts................................................................... 119 IPMI Support ............................................................. 119 Master Operation ...................................................... 119 Master Support ......................................................... 119 Operating Function Description ................................ 115 Operation During CPU Sleep and Idle Modes .......... 120 Pin Configuration ...................................................... 115 Programmer's Model................................................. 115 Register Map............................................................. 121 Registers................................................................... 115 Slope Control ............................................................ 119 Software Controlled Clock Stretching (STREN = 1).. 118 Various Modes .......................................................... 115 Idle Current (IIDLE) ............................................................ 184 In-Circuit Serial Programming (ICSP) ............................... 151 Independent PWM Output ................................................ 107 Initialization Condition for RCON Register Case 1 ........... 160 Initialization Condition for RCON Register Case 2 ........... 160 Initialization Condition for RCON Register, Case 1 .......... 160 Input Capture (CAPX) Timing Characteristics .................. 201 Input Capture Interrupts ...................................................... 89 Register Map............................................................... 90 Input Capture Module ......................................................... 87 In CPU Sleep Mode .................................................... 89 Simple Capture Event Mode ....................................... 88 Input Capture Timing Requirements ................................. 201 Input Change Notification Module ....................................... 71 Register Map (bits 15-8) ............................................. 71 Register Map (bits 7-0) ............................................... 71 Input Characteristics QEA/QEB.................................................................. 204 Instruction Addressing Modes............................................. 43 File Register Instructions ............................................ 44 Fundamental Modes Supported.................................. 43 MAC Instructions......................................................... 44 MCU Instructions ........................................................ 44 Move and Accumulator Instructions............................ 44 Other Instructions........................................................ 44 Instruction Flow ................................................................... 22 Pipeline - 1-Word, 1-Cycle (Figure) ............................ 22 Pipeline - 1-Word, 2-Cycle (Figure) ............................ 22 Pipeline - 1-Word, 2-Cycle MOV.D Operations (Figure) ............................................................... 23 Pipeline - 1-Word, 2-Cycle Table Operations (Figure) ............................................................... 23 Pipeline - 1-Word, 2-Cycle with Instruction Stall (Figure) ............................................................... 24 Pipeline - 2-Word, 2-Cycle DO, DOW (Figure) ........... 24 Pipeline - 2-Word, 2-Cycle GOTO, CALL (Figure)...... 23 Instruction Set ................................................................... 165 Instruction Set Overview ................................................... 168 Instruction Stalls.................................................................. 45 Introduction ................................................................. 45 Raw Dependency Detection ....................................... 45 Inter-Integrated Circuit. See I2C Internal Clock Timing Examples ....................................... 194 Interrupt Controller Register Map............................................................... 56 Interrupt Priority Traps........................................................................... 53 Interrupt Sequence ............................................................. 54 Interrupt Stack Frame ................................................. 55 2004 Microchip Technology Inc. L Load Conditions................................................................ 192 Low-Voltage Detect Characteristics.................................. 189 LVDL Characteristics ........................................................ 190 M Memory Organization ......................................................... 13 Modulo Addressing ............................................................. 46 Applicability................................................................. 48 Decrementing Buffer Operation Example................... 48 Incrementing Buffer Operation Example .................... 47 Restrictions................................................................. 48 Start and End Address ............................................... 46 W Address Register Selection.................................... 47 Motor Control PWM Module ............................................. 101 Fault Timing Characteristics ..................................... 203 Timing Characteristics .............................................. 203 Timing Requirements ............................................... 203 MPLAB ASM30 Assembler, Linker, Librarian ................... 174 MPLAB ICD 2 In-Circuit Debugger ................................... 175 MPLAB ICE 2000 High Performance Universal In-Circuit Emulator.................................................... 175 MPLAB ICE 4000 High Performance Universal In-Circuit Emulator.................................................... 175 MPLAB Integrated Development Environment Software.. 173 MPLINK Object Linker/MPLIB Object Librarian ................ 174 O OC/PWM Module Timing Characteristics ......................... 202 Operating Current (IDD) .................................................... 181 Operating Frequency vs Voltage dsPIC30FXXXX-20 (Extended) ................................ 180 Oscillator Configurations Fast RC (FRC).................................................. 154 Operating Modes (Table).......................................... 152 Oscillator Configurations................................................... 154 Fail-Safe Clock Monitor ............................................ 155 Initial Clock Source Selection ................................... 154 Low Power RC (LPRC)............................................. 155 LP Oscillator Control................................................. 154 Phase Locked Loop (PLL) ........................................ 154 Start-up Timer (OST)................................................ 154 Oscillator Selection ........................................................... 151 Oscillator Start-up Timer Timing Characteristics .............................................. 196 Timing Requirements ............................................... 197 Output Compare Interrupts ................................................. 93 Output Compare Mode Register Map .............................................................. 94 Output Compare Module .................................................... 91 Timing Characteristics .............................................. 201 Timing Requirements ............................................... 201 Output Compare Operation During CPU Idle Mode ........... 93 Output Compare Sleep Mode Operation ............................ 93 P Packaging Information ...................................................... 221 Marking..................................................................... 221 PICkit 1 Flash Starter Kit .................................................. 177 PICSTART Plus Development Programmer..................... 175 Pinout Descriptions............................................................. 15 PLL Clock Timing Specifications ...................................... 194 POR. See Power-on Reset Port Write/Read Example ................................................... 68 Preliminary DS70082G-page 235 dsPIC30F PORTA Register Map ......................................................... 69 PORTB Register Map ......................................................... 69 PORTC Register Map ......................................................... 69 PORTD Register Map ......................................................... 69 PORTE Register Map ......................................................... 69 PORTF Register Map.......................................................... 70 PORTG Register Map ......................................................... 70 Position Measurement Mode .............................................. 96 Power Saving Modes ........................................................ 161 Idle ............................................................................ 162 Sleep......................................................................... 161 Power Saving Modes (Sleep and Idle).............................. 151 Power-Down Current (IPD) ................................................ 186 Power-on Reset (POR) ..................................................... 151 Oscillator Start-up Timer (OST) ................................ 151 Power-up Timer (PWRT) .......................................... 151 Power-up Timer Timing Characteristics .............................................. 196 Timing Requirements ................................................ 197 PRO MATE II Universal Device Programmer ................... 175 Product Identification System............................................ 241 Program Address Space ..................................................... 31 Alignment and Data Access Using Table Instructions 32 Construction ................................................................ 31 Data Access from, Address Generation...................... 31 Memory Map ............................................................... 35 Table Instructions TBLRDH.............................................................. 32 TBLRDL .............................................................. 32 TBLWTH ............................................................. 32 TBLWTL.............................................................. 32 Program and EEPROM Characteristics ............................ 191 Program Counter................................................................. 20 Program Data Table Access ............................................... 33 Program Space Visibility Window into Program Space Operation...................... 34 Program Space Visibility from Data Space ......................... 33 Programmable................................................................... 151 Programmable Digital Noise Filters..................................... 97 Programmer's Model........................................................... 20 Diagram ...................................................................... 21 Programming Operations .................................................... 58 Algorithm for Program Flash ....................................... 58 Erasing a Row of Program Memory ............................ 59 Initiating the Programming Sequence ......................... 61 Loading Write Latches ................................................ 60 Programming, Device Instructions .................................... 165 Protection Against Accidental Writes to OSCCON ........... 156 PWM Duty Cycle Comparison Units ................................. 106 Duty Cycle Register Buffers ...................................... 106 PWM FAULT Pins ............................................................. 108 Enable Bits................................................................ 108 FAULTStates ............................................................ 108 Modes ....................................................................... 109 Cycle-by-Cycle.................................................. 109 Latched ............................................................. 109 Priority ....................................................................... 109 PWM Operation During CPU Idle Mode............................ 109 PWM Operation During CPU Sleep Mode ........................ 109 PWM Output and Polarity Control ..................................... 108 Output Pin Control .................................................... 108 PWM Output Override....................................................... 108 Complementary Output Mode ................................... 108 Synchronization ........................................................ 108 PWM Period ...................................................................... 105 DS70082G-page 236 PWM Special Event Trigger.............................................. 109 Postscaler ................................................................. 109 PWM Time Base............................................................... 104 Continuous Up/Down Counting Modes..................... 104 Double Update Mode................................................ 104 Free Running Mode .................................................. 104 Postscaler ................................................................. 105 Prescaler .................................................................. 105 Single Shot Mode ..................................................... 104 PWM Update Lockout....................................................... 109 Q QEA/QEB Input Characteristics........................................ 204 QEI Module External Clock Timing Requirements ....................... 200 Index Pulse Timing Characteristics .......................... 205 Index Pulse Timing Requirements............................ 205 Operation During CPU Idle Mode ............................... 97 Operation During CPU Sleep Mode............................ 97 Register Map .............................................................. 99 Timer Operation During CPU Idle Mode..................... 98 Timer Operation During CPU Sleep Mode ................. 97 Quadrature Decoder Timing Requirements...................... 204 Quadrature Encoder Interface (QEI) Module...................... 95 Quadrature Encoder Interface Interrupts ............................ 98 Quadrature Encoder Interface Logic................................... 96 R Reset ........................................................................ 151, 157 Reset Sequence ................................................................. 53 Reset Sources ............................................................ 53 Reset Timing Characteristics............................................ 196 Reset Timing Requirements ............................................. 197 Resets BOR, Programmable ................................................ 159 POR .......................................................................... 157 Operating without FSCM and PWRT................ 159 POR with Long Crystal Start-up Time....................... 159 RTSP Operation ................................................................. 58 S Serial Peripheral Interface. See SPI Simple Capture Event Mode Capture Buffer Operation............................................ 88 Capture Prescaler....................................................... 88 Hall Sensor Mode ....................................................... 88 Input Capture in CPU Idle Mode................................. 89 Timer2 and Timer3 Selection Mode............................ 88 Simple OC/PWM Mode Timing Requirements ................. 202 Simple Output Compare Match Mode ................................ 92 Simple PWM Mode ............................................................. 92 Input Pin Fault Protection ........................................... 92 Period ......................................................................... 93 Single Pulse PWM Operation ........................................... 108 Software Simulator (MPLAB SIM) .................................... 174 Software Simulator (MPLAB SIM30) ................................ 174 Software Stack Pointer, Frame Pointer .............................. 20 CALL Stack Frame ..................................................... 37 SPI .................................................................................... 111 SPI Mode Slave Select Synchronization ................................... 113 SPI1 Register Map.................................................... 114 SPI2 Register Map.................................................... 114 SPI Module ....................................................................... 111 Framed SPI Support ................................................. 113 Operating Function Description ................................ 111 Preliminary 2004 Microchip Technology Inc. dsPIC30F SDOx Disable ........................................................... 111 Timing Characteristics Master Mode (CKE = 0) .................................... 206 Master Mode (CKE = 1) .................................... 207 Slave Mode (CKE = 1) .............................. 208, 209 Timing Requirements Master Mode (CKE = 0) .................................... 206 Master Mode (CKE = 1) .................................... 207 Slave Mode (CKE = 0) ...................................... 208 Slave Mode (CKE = 1) ...................................... 210 Word and Byte Communication ................................ 111 SPI Operation During CPU Idle Mode .............................. 113 SPI Operation During CPU Sleep Mode ........................... 113 Status Register ................................................................... 20 Z Status Bit ................................................................. 20 Subtractor ........................................................................... 29 Data Space Write Saturation ...................................... 30 Overflow and Saturation ............................................. 29 Round Logic................................................................ 30 Write Back................................................................... 30 Symbols used in Roadrunner Opcode Descriptions ......... 166 System Integration ............................................................ 151 Overview ................................................................... 151 Register Map............................................................. 164 T Temperature and Voltage Specifications AC ............................................................................. 192 DC............................................................................. 180 Timer1 Module .................................................................... 73 16-bit Asynchronous Counter Mode ........................... 73 16-bit Synchronous Counter Mode ............................. 73 16-bit Timer Mode....................................................... 73 Gate Operation ........................................................... 74 Interrupt....................................................................... 74 Operation During Sleep Mode .................................... 74 Prescaler..................................................................... 74 Real-Time Clock ......................................................... 74 RTC Interrupts .................................................... 75 RTC Oscillator Operation.................................... 75 Register Map............................................................... 76 Timer2 and Timer 3 Selection Mode ................................... 92 Timer2/3 Module ................................................................. 77 32-bit Synchronous Counter Mode ............................. 77 32-bit Timer Mode....................................................... 77 ADC Event Trigger...................................................... 80 Gate Operation ........................................................... 80 Interrupt....................................................................... 80 Operation During Sleep Mode .................................... 80 Register Map............................................................... 81 Timer Prescaler........................................................... 80 Timer4/5 Module ................................................................. 83 Register Map............................................................... 85 TimerQ (QEI Module) External Clock Timing Characteristics .............................................. 200 Timing Characteristics A/D Conversion High-speed (CHPS = 01, SIMSAM = 0, ASAM = 0, SSRC = 000) .......................... 218 High-speed (CHPS = 01, SIMSAM = 0, ASAM = 1, SSRC = 111, SAMC = 00001) ........................................ 219 Bandgap Start-up Time............................................. 197 CAN Module I/O........................................................ 215 CLKOUT and I/O....................................................... 195 External Clock........................................................... 192 2004 Microchip Technology Inc. I2C Bus Data Master Mode..................................................... 211 Slave Mode ...................................................... 213 I2C Bus Start/Stop Bits Master Mode..................................................... 211 Slave Mode ...................................................... 213 Input Capture (CAPX)............................................... 201 Motor Control PWM Module ..................................... 203 Motor Control PWM Module Falult ........................... 203 OC/PWM Module...................................................... 202 Oscillator Start-up Timer........................................... 196 Output Compare Module .......................................... 201 Power-up Timer ........................................................ 196 QEI Module Index Pulse........................................... 205 Reset ........................................................................ 196 SPI Module Master Mode (CKE = 0).................................... 206 Master Mode (CKE = 1).................................... 207 Slave Mode (CKE = 0)...................................... 208 Slave Mode (CKE = 1)...................................... 209 TimerQ (QEI Module) External Clock ....................... 200 Type A, B and C Timer External Clock..................... 198 Watchdog Timer ....................................................... 196 Timing Diagrams Center Aligned PWM ................................................ 106 Dead-Time................................................................ 107 Edge Aligned PWM .................................................. 105 PWM Output ............................................................... 93 Time-out Sequence on Power-up (MCLR Not Tied to VDD), Case 1 ..................... 158 Time-out Sequence on Power-up (MCLR Not Tied to VDD), Case 2 ..................... 158 Time-out Sequence on Power-up (MCLR Tied to VDD) ......................................... 158 Timing Diagrams and Specifications DC Characteristics - Internal RC Accuracy .............. 194 Timing Diagrams.See Timing Characteristics Timing Requirements A/D Conversion High-speed ....................................................... 220 Bandgap Start-up Time ............................................ 197 Brown-out Reset....................................................... 197 CAN Module I/O ....................................................... 215 CLKOUT and I/O ...................................................... 195 External Clock .......................................................... 193 I2C Bus Data (Master Mode) .................................... 212 I2C Bus Data (Slave Mode) ...................................... 214 Input Capture............................................................ 201 Motor Control PWM Module ..................................... 203 Oscillator Start-up Timer........................................... 197 Output Compare Module .......................................... 201 Power-up Timer ........................................................ 197 QEI Module External Clock .................................................. 200 Index Pulse....................................................... 205 Quadrature Decoder................................................. 204 Reset ........................................................................ 197 Simple OC/PWM Mode ............................................ 202 SPI Module Master Mode (CKE = 0).................................... 206 Master Mode (CKE = 1).................................... 207 Slave Mode (CKE = 0)...................................... 208 Slave Mode (CKE = 1)...................................... 210 Type A Timer External Clock.................................... 198 Type B Timer External Clock.................................... 199 Preliminary DS70082G-page 237 dsPIC30F Type C Timer External Clock .................................... 199 Watchdog Timer........................................................ 197 Timing Specifications PLL Clock.................................................................. 194 U UART Address Detect Mode ............................................... 127 Auto Baud Support.................................................... 128 Baud Rate Generator ................................................ 127 Enabling and Setting Up UART ................................ 125 Alternate I/O...................................................... 125 Disabling ........................................................... 125 Enabling ............................................................ 125 Setting Up Data, Parity and Stop Bit Selections ................................................. 125 Loopback Mode ........................................................ 127 Module Overview ...................................................... 123 Operation During CPU Sleep and Idle Modes .......... 128 Receiving Data.......................................................... 126 In 8-bit or 9-bit Data Mode ................................ 126 Interrupt............................................................. 126 Receive Buffer (UxRCB) ................................... 126 DS70082G-page 238 Reception Error Handling ......................................... 126 Framing Error (FERR) ...................................... 127 Idle Status......................................................... 127 Parity Error (PERR) .......................................... 127 Receive Break .................................................. 127 Receive Buffer Overrun Error (OERR Bit) ........ 126 Transmitting Data ..................................................... 125 In 8-bit Data Mode ............................................ 125 In 9-bit Data Mode ............................................ 125 Interrupt ............................................................ 126 Transmit Buffer (UxTXB) .................................. 125 UART1 Register Map................................................ 129 UART2 Register Map................................................ 129 Unit ID Locations .............................................................. 151 Universal Asynchronous Receiver Transmitter. See UART. W Wake-up from Sleep ......................................................... 151 Wake-up from Sleep and Idle ............................................. 55 Watchdog Timer Timing Characteristics .............................................. 196 Timing Requirements................................................ 197 Watchdog Timer (WDT)............................................ 151, 161 Enabling and Disabling ............................................. 161 Operation .................................................................. 161 WWW, On-Line Support ..................................................... 12 Preliminary 2004 Microchip Technology Inc. dsPIC30F ON-LINE SUPPORT Microchip provides on-line support on the Microchip World Wide Web site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must have access to the Internet and a web browser, such as Netscape(R) or Microsoft(R) Internet Explorer. Files are also available for FTP download from our FTP site. SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products. Plus, this line provides information on how customers can receive the most current upgrade kits.The Hot Line Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world. Connecting to the Microchip Internet Web Site 042003 The Microchip web site is available at the following URL: www.microchip.com The file transfer site is available by using an FTP service to connect to: ftp://ftp.microchip.com The web site and file transfer site provide a variety of services. Users may download files for the latest Development Tools, Data Sheets, Application Notes, User's Guides, Articles and Sample Programs. A variety of Microchip specific business information is also available, including listings of Microchip sales offices, distributors and factory representatives. Other data available for consideration is: * Latest Microchip Press Releases * Technical Support Section with Frequently Asked Questions * Design Tips * Device Errata * Job Postings * Microchip Consultant Program Member Listing * Links to other useful web sites related to Microchip Products * Conferences for products, Development Systems, technical information and more * Listing of seminars and events 2004 Microchip Technology Inc. Preliminary DS70082G-page 239 dsPIC30F READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document. To: Technical Publications Manager RE: Reader Response Total Pages Sent ________ From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ FAX: (______) _________ - _________ Application (optional): Would you like a reply? Device: dsPIC30F Y N Literature Number: DS70082G Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs? 3. Do you find the organization of this document easy to follow? If not, why? 4. What additions to the document do you think would enhance the structure and subject? 5. What deletions from the document could be made without affecting the overall usefulness? 6. Is there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS70082G-page 240 Preliminary 2004 Microchip Technology Inc. dsPIC30F PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. d s P I C 3 0 F 2 0 1 0 AT- 3 0 I / P F - E S Custom ID (3 digits) or Engineering Sample (ES) Trademark Architecture PT PT PF P SO SP ML S W Flash Memory Size in Bytes 0 = ROMless 1 = 1K to 6K 2 = 7K to 12K 3 = 13K to 24K 4 = 25K to 48K 5 = 49K to 96K 6 = 97K to 192K 7 = 193K to 384K 8 = 385K to 768K 9 = 769K and Up = = = = = = = = = Package TQFP 10x10 TQFP 12x12 TQFP 14x14 DIP SOIC SPDIP QFN 6x6 or 8x8 Die (Waffle Pack) Die (Wafers) Temperature I = Industrial -40C to +85C E = Extended High Temp -40C to +125C Speed 20 = 20 MIPS 30 = 30 MIPS Device ID T = Tape and Reel A,B,C... = Revision Level Example: dsPIC30F2010AT-30I/PF = 30 MIPS, Industrial temp., TQFP package, Rev. A 2004 Microchip Technology Inc. Preliminary DS70082G-page 241 WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: www.microchip.com Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 India - Bangalore Tel: 91-80-2229-0061 Fax: 91-80-2229-0062 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 India - New Delhi Tel: 91-11-5160-8632 Fax: 91-11-5160-8632 Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4420-9895 Fax: 45-4420-9910 China - Chengdu Tel: 86-28-8676-6200 Fax: 86-28-8676-6599 Japan - Kanagawa Tel: 81-45-471- 6166 Fax: 81-45-471-6122 France - Massy Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 China - Fuzhou Tel: 86-591-750-3506 Fax: 86-591-750-3521 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Germany - Ismaning Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307 Boston Westford, MA Tel: 978-692-3848 Fax: 978-692-3821 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Shanghai Tel: 86-21-6275-5700 Fax: 86-21-6275-5060 China - Shenzhen Tel: 86-755-8290-1380 Fax: 86-755-8295-1393 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Qingdao Tel: 86-532-502-7355 Fax: 86-532-502-7205 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4816 Fax: 886-7-536-4817 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 England - Berkshire Tel: 44-118-921-5869 Fax: 44-118-921-5820 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 08/24/04 DS70082G-page 242 Preliminary 2004 Microchip Technology Inc.