LSI LSI53C896 Manuale utente

LSI53C896

PCI to Dual Channel

Ultra2 SCSI

Multifunction Controller

TECHNICAL

MANUAL

April 2001

Version 3.2

This document contains proprietary information of LSI Logic Corporation. The

information contained herein is not to be used by or disclosed to third parties

without the express written permission of an ofﬁcer of LSI Logic Corporation.

LSI Logic products are not intended for use in life-support appliances, devices,

or systems. Use of any LSI Logic product in such applications without written

consent of the appropriate LSI Logic ofﬁcer is prohibited.

Document DB14-000083-03, Fourth Edition (April 2001)

This document describes the LSI Logic LSI53C896 PCI to Dual Channel Ultra2

SCSI Multifunction Controller and will remain the ofﬁcial reference source for all

revisions/releases of this product until rescinded by an update.

To receive product literature, visit us at http://www.lsilogic.com.

LSI Logic Corporation reserves the right to make changes to any products 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 described herein,

except as expressly agreed to in writing by LSI Logic; nor does the purchase or

use of a product 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 third parties.

Ultra SCSI is the term used by the SCSI Trade Association (STA) to describe

Fast-20 SCSI, as documented in the SCSI-3 Fast-20 Parallel Interface standard,

X3.277-199X.

Ultra2 SCSI is the term used by the SCSI Trade Association (STA) to describe

Fast-40 SCSI, as documented in the SCSI Parallel Interface–2 standard, (SPI–2)

X3T10/1142D.

TRADEMARK ACKNOWLEDGMENT

The LSI Logic logo design, TolerANT, LVDlink, and SCRIPTS are registered

trademarks or trademarks of LSI Logic Corporation. All other brand and product

names may be trademarks of their respective companies.

Preface iii

Preface

This book is the primary reference and technical manual for the LSI Logic

Corporation LSI53C896 PCI to Dual Channel Ultra2 SCSI Multifunction

Controller. It contains a complete functional description for the product

and includes complete physical and electrical speciﬁcations.

Audience

This document was prepared for system designers and programmers

who are using this device to design an Ultra2 SCSI port for PCI-based

personal computers, workstations, servers or embedded applications.

Organization

This document has the following chapters and appendixes:

•Chapter 1, Introduction, describes the general information about the

LSI53C896.

•Chapter 2, Functional Description, describes the main functional

areas of the chip in more detail, including the interfaces to the SCSI

bus and external memory.

•Chapter 3, Signal Descriptions, contains the pin diagram and signal

descriptions.

•Chapter 4, Registers, describes each bit in the operating registers,

and is organized by register address.

•Chapter 5, SCSI SCRIPTS Instruction Set, deﬁnes all of the SCSI

SCRIPTS instructions that are supported by the LSI53C896.

•Chapter 6, Specifications, contains the electrical characteristics and

AC timing diagrams.

•Appendix A, Register Summary, is a register summary.

iv Preface

•Appendix B, External Memory Interface Diagram Examples,

contains several example interface drawings for connecting the

LSI53C896 to external ROMs.

Related Publications

For background information, please contact:

ANSI

11 West 42nd Street

New York, NY 10036

(212) 642-4900

Ask for document number X3.131-199X (SCSI-2)

Global Engineering Documents

15 Inverness Way East

Englewood, CO 80112

(800) 854-7179 or (303) 397-7956 (outside U.S.) FAX (303) 397-2740

Ask for document number X3.131-1994 (SCSI-2); X3.253

(SCSI-3 Parallel Interface)

ENDL Publications

14426 Black Walnut Court

Saratoga, CA 95070

(408) 867-6642

Document names: SCSI Bench Reference, SCSI Encyclopedia, SCSI

Tutor

Prentice Hall

113 Sylvan Avenue

Englewood Cliffs, NJ 07632

(800) 947-7700

Ask for document number ISBN 0-13-796855-8, SCSI: Understanding

the Small Computer System Interface

LSI Logic World Wide Web Home Page

www.lsilogic.com

SCSI SCRIPTS™ Processors Programming Guide, Version 2.2,

Order Number S14044.A

Preface v

PCI Special Interest Group

2575 N. E. Katherine

Hillsboro, OR 97214

(800) 433-5177; (503) 693-6232 (International); FAX (503) 693-8344

Conventions Used in This Manual

The word assert means to drive a signal true or active. The word

deassert means to drive a signal false or inactive.

Hexadecimal numbers are indicated by the preﬁx “0x” —for example,

0x32CF. Binary numbers are indicated by the preﬁx “0b” —for example,

0b0011.0010.1100.1111.

Revision Record

Revision Date Remarks

0.5 7/97 Advanced Information Data. Contains Signal Descriptions, Registers, and

Mechanical Drawings.

0.6 10/22/97 First Draft. Added Introduction, Functional Description, SCSI SCRIPTS

Instruction Set, Electrical Characteristics, Register Summary, and External

Memory Interface Diagram Examples.

1.0 3/11/98 Changes throughout to reﬂect manual review process and preproduction

chip revisions.

2.0 1/18/99 Miscellaneous changes/corrections to reﬂect product qualiﬁcation. A table

showing LSI53C896 internal pull-up and pull-downs has been added to

Chapter 3.

2.1 4/12/99 Miscellaneous cosmetic/format changes.

3.0 11/99 Final version.

3.1 1/01 All product names changed from SYM to LSI.

3.2 4/01 Changes made to Chapter 6 to DC Characteristics.

vi Preface

Contents vii

Contents

Chapter 1 Introduction

1.1 General Description 1-1

1.1.1 New Features in the LSI53C896 1-3

1.2 Beneﬁts of Ultra2 SCSI 1-4

1.3 Beneﬁts of LVDlink 1-4

1.4 TolerANT®Technology 1-5

1.5 LSI53C896 Beneﬁts Summary 1-6

1.5.1 SCSI Performance 1-6

1.5.2 PCI Performance 1-7

1.5.3 Integration 1-8

1.5.4 Ease of Use 1-8

1.5.5 Flexibility 1-8

1.5.6 Reliability 1-9

1.5.7 Testability 1-10

Chapter 2 Functional Description

2.1 PCI Functional Description 2-2

2.1.1 PCI Addressing 2-3

2.1.2 PCI Bus Commands and Functions Supported 2-4

2.1.3 Internal Arbiter 2-11

2.1.4 PCI Cache Mode 2-11

2.2 SCSI Functional Description 2-19

2.2.1 SCRIPTS Processor 2-20

2.2.2 Internal SCRIPTS RAM 2-21

2.2.3 64-Bit Addressing in SCRIPTS 2-22

2.2.4 Hardware Control of SCSI Activity LED 2-22

2.2.5 Designing an Ultra2 SCSI System 2-23

2.2.6 Prefetching SCRIPTS Instructions 2-24

2.2.7 Opcode Fetch Burst Capability 2-25

viii Contents

2.2.8 Load/Store Instructions 2-26

2.2.9 JTAG Boundary Scan Testing 2-26

2.2.10 SCSI Loopback Mode 2-27

2.2.11 Parity Options 2-27

2.2.12 DMA FIFO 2-30

2.2.13 SCSI Bus Interface 2-35

2.2.14 Select/Reselect During Selection/Reselection 2-40

2.2.15 Synchronous Operation 2-40

2.2.16 Interrupt Handling 2-43

2.2.17 Interrupt Routing 2-50

2.2.18 Chained Block Moves 2-52

2.3 Parallel ROM Interface 2-56

2.4 Serial EEPROM Interface 2-58

2.4.1 Default Download Mode 2-58

2.4.2 No Download Mode 2-59

2.5 Power Management 2-59

2.5.1 Power State D0 2-60

2.5.2 Power State D1 2-61

2.5.3 Power State D2 2-61

2.5.4 Power State D3 2-61

Chapter 3 Signal Descriptions

3.1 Internal Pull-ups on LSI53C896 Signals 3-4

3.2 PCI Bus Interface Signals 3-5

3.2.1 System Signals 3-5

3.2.2 Address and Data Signals 3-6

3.2.3 Interface Control Signals 3-7

3.2.4 Arbitration Signals 3-8

3.2.5 Error Reporting Signals 3-9

3.2.6 Interrupt Signals 3-10

3.2.7 SCSI Function A GPIO Signals 3-11

3.2.8 SCSI Function B GPIO Signals 3-12

3.3 SCSI Bus Interface Signals 3-13

3.3.1 SCSI Function A Signals 3-13

3.3.2 SCSI Function B Signals 3-16

3.4 Flash ROM and Memory Interface Signals 3-19

3.5 Test Interface Signals 3-20

Contents ix

3.6 Power and Ground Signals 3-21

3.7 MAD Bus Programming 3-22

Chapter 4 Registers

4.1 PCI Conﬁguration Registers 4-1

4.2 SCSI Registers 4-19

4.3 64-Bit SCRIPTS Selectors 4-107

4.4 Phase Mismatch Jump Registers 4-111

Chapter 5 SCSI SCRIPTS Instruction Set

5.1 SCSI SCRIPTS 5-1

5.1.1 Sample Operation 5-3

5.2 Block Move Instructions 5-4

5.2.1 First Dword 5-5

5.2.2 Second Dword 5-14

5.2.3 Third Dword 5-14

5.3 I/O Instructions 5-15

5.3.1 First Dword 5-15

5.3.2 Second Dword 5-22

5.4 Read/Write Instructions 5-23

5.4.1 First Dword 5-23

5.4.2 Second Dword 5-24

5.4.3 Read-Modify-Write Cycles 5-24

5.4.4 Move To/From SFBR Cycles 5-24

5.5 Transfer Control Instructions 5-26

5.5.1 First Dword 5-27

5.5.2 Second Dword 5-33

5.5.3 Third Dword 5-33

5.6 Memory Move Instructions 5-34

5.6.1 First Dword 5-35

5.6.2 Read/Write System Memory from a SCRIPTS 5-35

5.6.3 Second Dword 5-36

5.6.4 Third Dword 5-37

5.7 Load/Store Instructions 5-37

5.7.1 First Dword 5-38

5.7.2 Second Dword 5-40

x Contents

Chapter 6 Speciﬁcations

6.1 DC Characteristics 6-1

6.2 TolerANT Technology Electrical Characteristics 6-8

6.3 AC Characteristics 6-11

6.4 PCI and External Memory Interface Timing Diagrams 6-14

6.4.1 Target Timing 6-15

6.4.2 Initiator Timing 6-22

6.4.3 External Memory Timing 6-39

6.5 SCSI Timing Diagrams 6-60

6.6 Package Drawings 6-67

Appendix A Register Summary

Appendix B External Memory Interface Diagram Examples

Index

Customer Feedback

Figures 1.1 Typical LSI53C896 System Application 1-2

1.2 Typical LSI53C896 Board Application 1-3

2.1 LSI53C896 Block Diagram 2-2

2.2 Parity Checking/Generation 2-30

2.3 DMA FIFO Sections 2-31

2.4 LSI53C896 Host Interface SCSI Data Paths 2-32

2.5 8-Bit HVD Wiring Diagram for Ultra SCSI 2-37

2.6 Regulated Termination for Ultra2 SCSI 2-39

2.7 Determining the Synchronous Transfer Rate 2-41

2.8 Interrupt Routing Hardware Using the LSI53C896 2-51

2.9 Block Move and Chained Block Move Instructions 2-53

3.1 LSI53C896 Functional Signal Grouping 3-2

5.1 SCRIPTS Overview 5-4

5.2 Block Move Instruction - First Dword 5-5

5.3 Block Move Instruction - Second Dword 5-14

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