TECHNICAL
MANUAL
LSI53C895
PCI to Ultra2 SCSI I/O
Processor with LVD Link™
Universal Transceivers
Version 3.2
December 2000
®
S14030.A
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 DB14-000112-01, Second Edition (December 2000)
This document describes the LSI Logic LSI53C895 PCI to Ultra2 SCSI I/O
Processor with LVD Link Universal Transceivers 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reference source for all revisions/releases of this product until rescinded by an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.
Copyright © 1996–2000 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
The LSI Logic logo design, SCRIPTS, LVD Link, and TolerANT are registered
trademarks or trademarks of LSI Logic Corporation. All other brand and product
names may be trademarks of their respective companies.
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Preface
This book is the primary reference and technical manual for the
LSI53C895 PCI to Ultra2 SCSI I/O Processor with LVD Link™ Universal
Transceivers. It contains a complete functional description for the product
and includes complete physical and electrical specifications.
This technical manual assumes the user is familiar with the current and
proposed standards for SCSI and PCI. For additional background
information on these topics, please refer to the list of reference materials
provided below.
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
contains the general description about the
LSI53C895.
Chapter 2,
Functional Description
contains details about the three
functional blocks: the SCSI Core, the DMA Core, and the SCRIPTS
processor.
Chapter 3,
PCI Functional Description
contains the PCI bus
commands and functions supported.
Chapter 4,
Signal Descriptions
contains information about the
signal definitions using tables and illustrations.
•
•
Preface
iii
•
•
•
•
•
Chapter 5,
Registers
contains descriptions of the PCI registers and
the LSI53C895 operating registers.
Chapter 6,
SCSI SCRIPTS Instruction Set
contains detailed
information about utilizing SCSI SCRIPTS mode.
Chapter 7,
Electrical Characteristics
contains information
pertaining to DC and AC Characteristics for the LSI53C895.
Appendix A,
Register Summary
contains a quick reference to the
registers used for the LSI53C895.
Appendix B,
External Memory Interface Diagram Examples
contains four diagram examples pertaining to the interface of the
external memory.
Appendix C,
Circuit Board Layout Issues
provides details
concerning signals and other considerations specific to the
LSI53C895.
•
Related Publications
For background information, please contact:
ANSI
11 West 42nd Street
New York, NY 10036
(212) 642-4900
Ask for document number X3.131-1994 (SCSI-2)
Global Engineering Documents
15 Inverness Way East
Englewood, CO 80112
(800) 854-7179 or (303) 7956 (outside U.S.) FAX (303) 397-2740
Ask for document number X3.131-1994 (SCSI-2) or 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
iv
Preface
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
PCI Special Interest Group
PCI Local Bus Specification, Revision 2.1
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.
Preface
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