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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 DB14-000181-00, First Edition (August 2001)
This document describes LSI Logic Corporation's LSI53C120 Ultra SCSI Bus
Expander and will remain the official reference source for all revisions/releases
of this product until rescinded by an update.
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 1996-2001 by LSI Logic Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
The LSI Logic logo design and TolerANT are trademarks or registered
trademarks of LSI Logic Corporation. All other brand and product names may be
trademarks of their respective companies.
MH
To receive product literature, visit us at http://www.lsilogic.com.
For a current list of our distributors, sales offices, and design resource
centers, view our web page located at
http://www.lsilogic.com/contacts/na_salesoffices.html
Preface
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Preface
This book is the primary reference and technical manual for the
LSI53C120 Ultra SCSI Bus Expander. It contains a complete functional
description and complete physical and electrical specifications for the
LSI53C120 Ultra SCSI Bus Expander chip, which supports single-ended
to single-end SCSI bus expansion (Extender) or single-ended to
differential SCSI bus conversion (Converter).
Audience
This manual assumes some prior knowledge of current and proposed
SCSI standards. 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) (SCSI-3)
Global Engineering Documents
15 Inverness Way East
Englewood, CO 80112
(800) 854-7179 or (303) 792-2181 (outside U.S.)
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
Prentice Hall
Englewood Cliffs, NJ 07632
iv
Preface
(201) 767-5937
Ask for document number ISBN 0-13-796855-8, SCSI: Understanding
the Small Computer System Interface
LSI Logic World Wide Web
http://www.lsilogic.com
(See EPI (Enhanced Parallel Interface) Specification for expander
configurations)
Revision Record
Organization
This document has the following chapters and appendixes:
Chapter 1, Introduction
, provides general information about the
LSI53C120 Ultra SCSI Bus Expander.
Chapter 2, Functional Description
, provides information about the
interface signal descriptions.
Chapter 3, Specifications
, describes the LSI53C120 as a 128-pin
PQFP. It also provides minimum and maximum values for the
electrical characteristics of this expander/converter.
Appendix A, Differential Wiring Diagram
, illustrates the LSI53C120
wiring diagram for Ultra SCSI operation.
Appendix B, Glossary
, provides definitions for key terms used in this
manual.
Related Publication
LSI53C141 SCSI Bus Expander, Version 2.1, LSI Logic Corporation,
Order No. S14013.A
Revision
Date
Remarks
1.0
8/01
All product name changes from a SYM to an LSI prefix. Updated
figure references throughout book. Updated wiring diagram in
Appendix A.
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