Ziatech Corporation ZT 8825 User manual

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ZT 8825 and ZT 88CT25
Expanded\Extended Memory Systems
HARDWARE MANUAL
For ZT 8825
and ZT 88CT25 REVISION A.4
Reorder Part Number ZT M8825
April 29, 1993
1050 Southwood Drive
San Luis Obispo, CA 93401 USA
FAX [phone]
Telephone [phone]
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ZIATECH WARRANTY
Ziatech Hardware: Within two years of shipping date, Ziatech will
repair or replace products which prove to be defective in materials
and/or workmanship, provided they are promptly returned to Ziatech
at customer’s expense and have not been repaired, altered, or
damaged by non-Ziatech personnel. Service after warranty is
available at a predesignated service charge. Batteries are not covered
by this warranty. No other warranty is expressed or implied.
Ziatech Software: Within 90 days of shipping date, Ziatech will
replace software (PROM or diskette) should it prove defective.
Products not manufactured by Ziatech: Limited to the warranty
provided by the original manufacturer.
Notice: Contact Ziatech for a Return Materials Authorization (RMA)
number before returning any product to Ziatech for repair.
Life Support Policy: Ziatech products are not authorized for use as
critical components in life support devices or systems without the
express written approval of the president of Ziatech Corporation. As
used herein:
1. Life support devices or systems are devices or systems that
support or sustain life and whose failure to perform, when
properly used in accordance with instructions for use provided in
the labeling, can be reasonably expected to result in a significant
injury to the user.
2. A critical component is any component of a life support device
or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or system or to
affect its safety or effectiveness.
1998 Ziatech Corporation
Portions copyright 1987 Lotus Development Corporation,
Intel Corporation, Microsoft Corporation. Used by permission.
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CUSTOMER SUPPORT
If you have a technical question, please call Ziatech’s
Customer Support Service at the following number:
Corporate Headquarters: [phone]
[phone] (FAX)
You can also use a modem to leave a message on the 24 hour
Ziatech Bulletin Board Service (BBS) by calling
[phone]. The BBS will provide you with current
Ziatech product revision and upgrade information.
If you have a sales question, please contact your local Ziatech
Sales Representative.
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PREFACE
This manual discusses hardware and systems level topics for the
ZT 8825 and ZT 88CT25 extended byte-wide memory systems. All
references in this manual to the ZT 8825 include the ZT 88CT25
unless otherwise indicated. The ZT 8825 Software Support Package
manual addresses software support issues.
The following organizational outline describes the focus of each
chapter in this manual. Section headings enclosed in boxes indicate
the location of a labeled tab for quick access to the appropriate
information.
I. INTRODUCTION
Chapter 1, "Introduction," contains a brief overview of the
ZT 8825. It includes a product definition and a listing of product
features.
I. GETTING STARTED
Chapter 2, "Getting Started," summarizes the information essential
to getting your ZT 8825 up and running. You can refer to subsequent
chapters for further explanation of the material covered in "Getting
Started."
III. USER’S REFERENCE
Chapter 3, "Theory Of Operation," presents a more detailed look
at the way the ZT 8825 functions. Some topics covered in this chapter
include I/O addressing, memory addressing, memory mapping, and
extended memory mode.
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Preface
Chapter 4, "Application Examples," includes specific examples of
the ZT 8825 in operation, including code to implement these
applications. Examples include initializing the ZT 8825 as continuous
memory and as extended memory.
Chapter 5, "Configurable Options," details the various jumper-
selectable options on the ZT 8825.
IV. APPENDICES
Appendix A, "Jumper Configurations," lists the ZT 8825 jumpers
in numerical order and describes the function of each. This appendix
also indicates the factory default configuration and includes a figure
that shows the location of each jumper.
Appendix B, "Specifications," includes electrical, mechanical, and
environmental specifications for the ZT 8825.
Appendix C, "Hardware Quick Reference," supplies a centralized
location for frequently referenced tables and illustrations.
Appendix D, "Customer Support," offers a product revision
history, the Ziatech warranty, and the necessary information should
you need to return your ZT 8825 for repair.
Appendix E, "Glossary," lists definitions for acronyms and
important terms used in the manual.
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CONTENTS
I. INTRODUCTION
Chapter 1. INTRODUCTION 1-1
OVERVIEW ..................................................... 1-1
PRODUCT DESCRIPTION ....................................... 1-2
FEATURES OF THE ZT 8825..................................... 1-4
II. GETTING STARTED
Chapter 2. GETTING STARTED 2-1
OVERVIEW ..................................................... 2-1
UNPACKING .................................................... 2-2
WHAT’S IN THE BOX ........................................... 2-2
SYSTEM REQUIREMENTS ...................................... 2-3
Backplane Recommendations.................................. 2-4
Processor Compatibility....................................... 2-4
SOCKET ASSIGNMENTS ........................................ 2-5
WRITE PROTECT ............................................... 2-5
MEMORY SPEED REQUIREMENTS ............................. 2-6
BOARD CONFIGURATIONS ..................................... 2-7
CHIP SIZE SELECTION ........................................ 2-10
CHIP TYPE SELECTION ....................................... 2-14
I/O ADDRESSING .............................................. 2-16
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Contents
III. USER’S REFERENCE
Chapter 3. THEORY OF OPERATION 3-1
OVERVIEW ..................................................... 3-2
MEMORY CHIP TYPE ........................................... 3-4
MEMORY CHIP SIZE ............................................ 3-4
WAIT STATES ................................................... 3-6
WRITE PROTECTION ........................................... 3-6
BATTERY BACKUP ............................................. 3-7
I/O ADDRESSING .............................................. 3-10
MEMORY ADDRESSING ....................................... 3-13
20-bit Memory Addressing ................................... 3-13
24-bit Memory Addressing ................................... 3-13
MEMORY MAPPING ........................................... 3-14
Paging..................................................... 3-14
Map Registers.............................................. 3-15
Configuration Register ....................................... 3-17
Setting the Map Register ..................................... 3-18
Absolute Address Mode ...................................... 3-19
EXTENDED MEMORY MODE .................................. 3-20
Setting the 24-bit Map Register ............................... 3-20
Chapter 4. APPLICATION EXAMPLES 4-1
OVERVIEW ..................................................... 4-1
INITIALIZING ZT 8825 AS CONTINUOUS MEMORY ............. 4-1
Assembly Language Setup ..................................... 4-2
Microsoft C Setup............................................ 4-4
EXAMPLE PROGRAMS USING EMS ............................ 4-7
Example 1 ................................................... 4-7
Example 2 .................................................. 4-12
Example 3 .................................................. 4-21
Example 4 .................................................. 4-23
Chapter 5. CONFIGURABLE OPTIONS 5-1
OVERVIEW ..................................................... 5-2
MEMORY CHIP TYPE SELECTION .............................. 5-3
MEMORY CHIP SIZE SELECTION ............................... 5-6
WAIT STATE SELECTION ....................................... 5-8
BATTERY BACKUP SELECTION ................................ 5-9
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Contents
I/O BASE ADDRESS SELECTION ............................... 5-10
MEMORY ADDRESS SELECTION (20- VS. 24-BIT) .............. 5-12
IV. APPENDICES
Appendix A. JUMPER CONFIGURATIONS A-1
OVERVIEW .................................................... A-1
JUMPER DESCRIPTIONS ....................................... A-2
USER JUMPER CONFIGURATION .............................. A-5
SWITCH CONFIGURATION ..................................... A-5
Appendix B. SPECIFICATIONS B-1
ELECTRICAL SPECIFICATIONS ................................ B-1
ZT 8825 Power Requirements ................................. B-1
ZT 88CT25 Power Requirements .............................. B-2
STD Load Characteristics ..................................... B-2
ENVIRONMENTAL SPECIFICATIONS ........................... B-4
Operating Temperature ....................................... B-4
Storage Temperature ......................................... B-4
MECHANICAL SPECIFICATIONS ............................... B-4
Card Dimensions & Weight ................................... B-4
Appendix C. HARDWARE QUICK REFERENCE C-1
JUMPER DESCRIPTIONS ....................................... C-2
JUMPER REFERENCE TABLES ................................. C-5
Appendix D. CUSTOMER SUPPORT D-1
ZT 8825 REVISION HISTORY ................................... D-1
Revision 0.1 ................................................. D-1
Revision A - June 7, 1988..................................... D-1
Revision A.1 - January 1, 1989................................ D-2
Revision A.2 - July 6, 1989................................... D-2
Revision A.3 - January 30, 1991............................... D-2
Revision A.4 - September 23, 1991 ............................ D-2
TECHNICAL ASSISTANCE ..................................... D-4
RELIABILITY .................................................. D-4
WARRANTY ................................................... D-5
RETURNING FOR SERVICE .................................... D-6
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Contents
Appendix E. GLOSSARY E-1
V. INDEX
Index ..............................................................i
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