LSI8952U - LSI Logic Corporation - searchdatasheet.com

KEY APPLICATIONS

• High-performance desktop PCs

and workstations

• Intersystem connections:

server and workstation to RAID,

network management

• Ultra2 SCSI hard drives in servers,

clustered servers, workstations

and high-end desktops

• Upgrade systems to Ultra2-level

performance with Ultra2 drives

LSI8952U

SCSI Host Adapter

The LSI8952U PCI-to-Ultra SCSI host

adapter combines Ultra SCSI data transfer

rates with reliable data integrity.

OVERVIEW

The LSI8952U PCI-Ultra2 SCSI host adapter by LSI Logic matches high

performance and Ultra2 SCSI data transfer rates, with the speed of the PCI

system bus. As part of LSI Logic’s Ultra2 host adapter family, the LSI8952U

supports wide (16-bit) Fast, Ultra, or Ultra2 SCSI devices. The LSI8952U and

its Ultra2 complement, the LSI8951U, are ideal host connections to RAID

controllers and other demanding I/O applications in the high-performance

workstation and server markets.

Connecting up to 15 SCSI devices is as simple as plugging in the

LSI8952U host adapter and loading the drivers. New systems can start with

the LSI8952U and wide Fast/Ultra devices and then improve performance up

to 80 MBps by replacing them with new Ultra2 devices. As compared to Ultra

SCSI designs, Ultra2 provides twice the performance and greater flexibility

with increased cable lengths.

The flexibility, functionality and performance of the LSI8952U host

adapter comes from the on-board LSI Logic LSI53C895 PCI-Ultra2 single-chip

controller design. System design flexibility is provided by the LSI8952U’s

ability to automatically switch from single-ended operation for legacy Fast/

Ultra devices to universal low voltage differential (LVD) operation when Ultra2

devices are connected. Using LVDlink™(Low Voltage Differential) technology,

LSI Logic’s implementation of LVD transceivers, the LSI8952U provides superior

performance, device connectivity and signal reliability. These LVDlink

transceivers provide the data reliability of differential signaling without the

high cost of high voltage differential transceivers.

Setting up hard drives and other wide Fast/Ultra legacy or Ultra2 SCSI

devices is fast and easy with built-in SCAM (SCSI Configured Automatically)

and SCSI bus configuration utilities. The board’s PCI bus interface provides

Plug-and-Play installation without jumpers, switches, IRQs, system DMA or

addresses to set.

Bus Interface:

3/5V PCI

PCI Mode:

Bus Master

Plug-and-Play:

Yes

SCSI Rate:

80 Mbps synchronous

14 MBps asynchronous

SCSI Bus:

16-bit SE and LVD

Bootable:

Yes

No. of SCSI Devices:

SCSI Connectors:

Internal: 68-pin HD

External: 68-pin HD

FEATURES AND BENEFITS

Performance

•Synchronous:

up to 80 MBps Ultra2 SCSI

up to 40 MBps Ultra SCSI

up to 20 MBps Fast SCSI

•Asynchronous: up to 14 MBps

•DMA bus mastering for low

overhead with 32-bit burst data

transfers at PCI data transfer rates

•Zero wait state PCI transfers

•Up to 128 dword PCI burst size

to maximize the PCI data

transfer rate

HARDWARE FEATURES

PCI Bus Support

•PCI 2.1 compliant

•PCI write and invalidate, read

line and read multiple commands

•32-bit, 33-MHz PCI bus

•Functions as full 32-bit PCI

DMA bus master

•Operates on 3.3V or

5V PCI buses

SCSI Bus Support

•LVDlink transceivers meet all of

the requirements of the SPI-2

standard and utilize TolerANT™

active negation technology for

improved single-ended SCSI

signal integrity

•Prefetches up to 8 dwords of

SCSI SCRIPTS™instructions to

save PCI bus overhead

For critical data-handling applications, LSI Logic offers data and product

reliability, and software and hardware compatibility with easy installability.

LSI Logic and our technology partners’ extensive host adapter and testing

ensures OEM compatibility with all major operating systems and a wide

variety of Fast, Ultra and Ultra2 devices.

The powerful LSI Logic SCSI Device Management System (SDMS) software,

on-board BIOS and configuration utility make SCSI I/O subsystem installation

easy and virtually automatic.

SCSI DEVICE MANAGEMENT SOFTWARE (SDMS)

SDMS Software Features

•Multiple host adapter support

•Scatter/gather

•Tagged command queuing for peak performance in multi-tasking

environments

•Shared interrupts and shared memory to allow multiple PCI devices in a

single-interrupt system

•Multiple LUNs per SCSI ID for RAID and media changer capability

•Supports hard drives > 8 GBytes

•ASPI interface support

•Multi-initiator in most operating systems

•Disconnect/reselect support

•Target initiated negotiation

•On-board, field upgradeable BIOS in Flash ROM

•On-board serial EEPROM for SCSI bus configuration storage

SDMS Software Support

Operating systems supported are: DOS (with ASPI support), Windows

3.1, Windows for Workgroups 3.11, Windows 95, Windows NT 3.51 &

4.0, Novell NetWare 3.1 & 4.x, SCO UNIX Open Server 5.0.2 and above,

UNIXWare 2.1 & 7, OS/2.4x, and Solaris 2.6. Utilities: Install and FLASH

(DOS only), SCSI format, SCSI configuration, verify.

LSI8952U SCSI Host Adapter

SCSI Bus Support (Continued)

•Supports SCSI SCRIPTS load

and store instructions for more

efficient moving of data between

memory and chip register space

•Includes 4 KB internal RAM for

SCRIPTS instruction storage to

reduce or eliminate instruction

fetches over the PCI bus

•Improved support for large block

transfers at Ultra2 SCSI speeds

•Termination:

–Active, automatic

–LVDlink provides automatic

switching between single-

ended and LVD signaling

–Automatically enters high-

impedance state when

connected to a HVD signal

•Provides data reliability and

cable distance of differential

SCSI without the cost of

external differential transceivers

•Improves connectivity (up to 15

LVD Ultra2 SCSI devices) and

cable lengths (up to 12 meters

of Ultra SCSI - longer cables

may be possible in point-to-

point connections)

•Uses same internal cables as

Ultra SCSI and same connectors

as Fast/Ultra SCSI

•Supports wide variety of 16-bit

SCSI peripherals

•Supports SCAM (SCSI Configured

AutoMatically) Level 1 functionality

•Uses LSI53C895 proprietary

Ultra2 SCSI I/O RISC processor

HOST ADAPTER COMPATIBILITY AND QUALITY

LSI Logic is a key developer and contributor to the original committees

that defined today’s SCSI and PCI standards. Our continuing work with other

industry leaders of core chip sets, processors, system providers, SCSI device

peripherals, BIOS, and operating systems enables us to provide users with

the utmost compatibility and interoperability. Product compatibility and inter-

operability are rigorously tested and our ISO-9001 certified fabrication facilities

assures users of the highest levels of product quality and reliability.

LVDLINK - UNIVERSAL LVD TRANSCEIVERS

Balancing backward compatibility with I/O performance, the LSI8952U

utilizes the LSI Logic LSI53C895 PCI-Ultra2 SCSI controller IC which integrates

LSI Logic’s Universal LVDlink transceivers with an Ultra2 SCSI I/O processor.

Depending on SCSI bus connections, bus cables are sensed and the universal

LVDlink transceivers automatically select single-ended or LVD SCSI modes. In

single-ended mode, the LSI8952U performs synchronous data transfers up to

Ultra SCSI rates, subject to standard Ultra SCSI cable distance and number

of connected device constraints. In LVD mode, the host adapter supports up

to 12-meter cables and up to 15 LVD devices with the same cables and

connectors as defined in the SCSI-3 Parallel Interface ANSI standard. In LVD

mode, the LSI8952U host adapter is capable of running at 80 MBps.

LVDlink transceivers also provide fail-safe protection of the receiver by

detecting when the LSI8952U is connected to a High Voltage Differential

(HVD) signal. When connected to HVD, the LSI8952U’s SCSI bus enters a

high-impedance mode.

LSI8952U host adapter diagram

LSI53C895

LSI8952U

For more information please visit

the LSI Logic web site at:

http://storageio.lsilogic.com

LSI Logic Corporation

North American Headquarters

Milpitas, CA

Tel: 866 574 5741

Host Adapter Group

Southborough, MA

Tel: 888 429 0425

FAX: 508 485 0303

LSI Logic Europe Ltd.

European Headquarters

United Kingdom

Tel: 44 1344 426544

Fax: 44 1344 481039

LSI Logic KK Headquarters

Tokyo, Japan

Tel: 81 3 5463 7165

Fax 81 3 5463 7820

ISO 9000 Certified

The LSI Logic logo design, LVDlink, SDMS, and

TolerANT are trademarks or registered trademarks of

LSI Logic Corporation. All other brand and product

names may be trademarks of their respective companies.

LSI Logic Corporation reserves the right to make

changes to any products and services herein at

any time without notice. LSI Logic does not

assume any responsibility or liability arising out of

the application or use of any product or service

described herein, except as expressly agreed to

in writing by LSI Logic; nor does the purchase,

lease, or use of a product or service from

LSI Logic convey a license under any patent

rights, copyrights, trademark rights, or any other

of the intellectual property rights of LSI Logic or

of third parties.

Order No. S20065

8/01-1M – Printed in USA

LSI8952U KIT CONTENTS

•LSI8952U PCI-to-Ultra2 SCSI host adapter

•SCSI Device Management System (SDMS) software with a full range of

operating system support and SCSI configuration utilities

•LSI8952U Users Guide

•SDMS Users Guide

•68-pin SE/LVD cable (with built-in LVD termination for 4 devices)

LSI8952U SCSI Host Adapter

Technical Specifications

PCI Bus 32-bit, 3.3/5 V local bus (versions 2.0 and 2.1)

PCl Modes Bus master DMA

PCI Transfer Rate up to 133 MBps

SCSI Asynchronous up to 14 MBps

SCSI Synchronous SE Fast: up to 20 MBps, Ultra: up to 40 MBps

SCSI Synchronous LVD Ultra2: up to 80 MBps

PCI Voltage +5V ±5% (1.5 A max), 12V ±5% (50mA max)

PCI Form Factor 3.5” x 6.0”

Bracket ISA/EISA

Certification Level PCI 2.1 compliant

SCSI Bus 16-bit wide

SCSI Processor LSI53C895

Connectors External Internal

68-pin VHDCI 68-pin HD

Termination Active, automatic terminating, universal LVDlink SCSI with automatic

switching to single-ended

Termination Power Self-resetting

LED Indicators 4-pin header for off-board LEDs

Environments Operating Storage

Temperature 5°C to 55°C -40°C to +85°C

Relative Humidity 5 to 90% non-condensing 5 to 90% non-condensing

Max Dew Point Temp 32°C

MTBP >500,000 hours

Compliances CE VDE, VCCI, FCC and CISPR class B, UL 94VO

Software Support

OS Support Versions

DOS with ASPI support

Windows 95, 98, Me, 2000, NT4.0 SP4 and above

NetWare 4.2, 5.0 and 5.1

UnixWare 2.1 & 7.x

SCO Unix Open Server 5.x

OS/2 Warp 4.x

Utilities Install, FIash (DOS only, SCSI format, SCSI configuration, verify