Ziatech corporation Zt 8825 User manual

Artisan Technology Group is your source for quality

new and certied-used/pre-owned equipment

• FAST SHIPPING AND

DELIVERY

• TENS OF THOUSANDS OF

IN-STOCK ITEMS

• EQUIPMENT DEMOS

• HUNDREDS OF

MANUFACTURERS

SUPPORTED

• LEASING/MONTHLY

RENTALS

• ITAR CERTIFIED

SECURE ASSET SOLUTIONS

SERVICE CENTER REPAIRS

Experienced engineers and technicians on staff

at our full-service, in-house repair center

WE BUY USED EQUIPMENT

Sell your excess, underutilized, and idle used equipment

We also offer credit for buy-backs and trade-ins

www.artisantg.com/WeBuyEquipment

REMOTE INSPECTION

Remotely inspect equipment before purchasing with

our interactive website at www.instraview.com

LOOKING FOR MORE INFORMATION?

Visit us on the web at www.artisantg.com for more

information on price quotations, drivers, technical

specications, manuals, and documentation

View

Instra

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 (805) 541-5088

Telephone (805) 541-0488

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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

Intel Corporation, Microsoft Corporation. Used by permission.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

CUSTOMER SUPPORT

If you have a technical question, please call Ziatech’s

Customer Support Service at the following number:

Corporate Headquarters: (805) 541-0488

(805) 541-5088 (FAX)

You can also use a modem to leave a message on the 24 hour

Ziatech Bulletin Board Service (BBS) by calling

(805) 541-8218. 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.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

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

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Contents

Appendix E. GLOSSARY E-1

V. INDEX

Index ..............................................................i

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

TABLES

Table 2–1 ZT 8825 Basic Access Time Requirements. ............ 2-6

Table 2–2 Chip Size Selection. ................................ 2-12

Table 2–3 Valid Chip Combinations. ........................... 2-13

Table 2–4 Chip Type Jumper Configurations. ................... 2-15

Table 2–5 ZT 8825 I/O Registers. ............................. 2-16

Table 2–6 Default I/O Address Assignments. ................... 2-17

Table 3–1 Chip Size Combinations. ............................. 3-5

Table 3–2 Est. Battery Life @ Max. Standby Current. ............. 3-7

Table 3–3 Default I/O Address Assignments. ................... 3-10

Table 3–4 ZT 8825 I/O Registers. .............................. 3-11

Table 5–1 Signal Choices on Each Socket. ....................... 5-3

Table 5–2 Jumper Selection of Socket Signals. ................... 5-4

Table 5–3 Chip Type Jumper Configurations. .................... 5-5

Table 5–4 Switch Settings for All Possible Chip Sizes. ............ 5-7

Table 5–5 ZT 8825 Basic Access Time Requirements. ............ 5-8

Table 5–6 Jumper Settings for Battery Backup. ................... 5-9

Table 5–7 Jumpers for I/O Base Address Decoding. ............. 5-11

Table A–1 ZT 8825 Jumper Descriptions. ....................... A-2

Table A–2 Switch Settings for All Possible Chip Sizes. ........... A-5

Table B–1 ZT 8825 STD Bus Loading. .......................... B-3

Table B–2 ZT 8825 Rev. A.4 Material List. ...................... B-6

Table C–1 ZT 8825 Jumper Descriptions. ........................ C-2

Table C–2 Jumpers for I/O Base Address Decoding. .............. C-5

Table C–3 Chip Type Jumper Configurations. .................... C-6

Table C–4 Switch Settings for All Possible Chip Sizes. ............ C-7

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

ILLUSTRATIONS

Figure 2–1 Factory Default Jumper Configuration. ................ 2-8

Figure 2–2 Example Setting for 24-bit Addressing. ................ 2-9

Figure 2–3 Memory Chip Orientation. .......................... 2-11

Figure 3–1 Functional Block Diagram. ........................... 3-2

Figure 3–2 Logical to Physical Address Mapping. ................ 3-15

Figure 3–3 Map Register. ...................................... 3-16

Figure 3–4 Configuration Register. ............................. 3-17

Figure A–1 Customer Jumper Configuration. ..................... A-6

Figure B–1 ZT 8825 Card Dimensions. .......................... B-5

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Chapter 1

INTRODUCTION

Contents Page

OVERVIEW ..................................................... 1-1

PRODUCT DESCRIPTION ....................................... 1-2

FEATURES OF THE ZT 8825..................................... 1-4

OVERVIEW

This chapter briefly introduces some key features and some possible

applications for the ZT 8825. Unless specifically called out, all

references to ZT 8825 also refer to the CMOS extended temperature

version ZT 88CT25.

1-1

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Introduction

PRODUCT DESCRIPTION

The ZT 8825, a member of Ziatech’s growing STD-80 Series product

line, is a state-of-the-art memory board that accommodates 28- and

32-pin byte-wide memory chips. The board is divided into two rows

of four memory chip sockets. Device type can be configured for each

row of four sockets individually. Address decoding can be configured

separately for each 16 Kbytes of memory. This provides an extremely

flexible board that can accommodate the memory requirements of

nearly any system.

The ZT 8825 can be used with several different processors in many

modes of operation:

1. Normal Memory: The ZT 8825 memory can be mapped in

16 Kbyte blocks to anywhere in the 1 Mbyte address space of

the STD-80 Series Bus Specification.

2. Extended Memory: For processors like the Intel 80286

(protected mode) and 80386 or the Motorola 680XX family, the

ZT 8825 provides memory that can be mapped in 16 Kbyte

blocks at any address, including those above the 1 Mbyte limit.

The board supports 24-bit addressing if the CPU meets the

STD-80 Series Bus Specification.

3. Expanded Memory: The ZT 8825 hardware supports the

Lotus-Intel-Microsoft Expanded Memory Specification (EMS),

Versions 3.2 & 4.0 and the AST Enhanced Expanded Memory

Specification (EEMS), Version 3.2. These specifications allow

access to additional memory outside of the normal 1 Mbyte

address space of the processor or DOS. The Ziatech ZT 8825

Software Support Package provides many of the DOS

subroutines required for the above specifications. See the

ZT 8825 Software Support Package manual for more

information.

4. RAM or PROM disk: The ZT 8825 can be organized as a disk

using the software provided with the product. DOS can work

with these pseudo-disks in the same manner as with regular

disks.

1-2

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Introduction

Devices that can be used in the ZT 8825 include: EPROMs (for

example, 27128, 27256, 27512, 27010, 27020, 27040, up to 1 Mbyte

chips), 5V-only EEPROMs (for example, 28C256, 28C010), and

static RAMs (for example, HM62256, HM628128). The maximum

amount of memory on a ZT 8825 is limited to 2 Mbytes. There are

also some limitations to the combinations of chip sizes that can be

used (see page 3-5).

The STD-80 Series 20-bit memory address protocol is used for

memory addressing. The board will also accept 24-bit addressing.

The on-board registers use 8- or 16-bit I/O addresses. The ZT 8825

configured with 120 ns memories operates without wait states when

used with an 8 MHz processor board such as the ZT 8809. The

ZT 8825 configured with 250 ns memories operates without wait

states when used with a 5 MHz CPU board. An optional wait state is

user-selectable, allowing the use of slower memory devices (see page

3-6).

An example of the versatility of the ZT 8825 is that EPROM can be

used on one half of the ZT 8825 and RAM on the other half. This

arrangement will provide the total memory requirements for many

STD systems. The ZT 8825 is effectively two byte-wide boards in

one. See Chapter 4 for details on additional application examples.

1-3

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Introduction

FEATURES OF THE ZT 8825

•Direct 20-bit or 24-bit addressing (compatible with the STD-80

Series Bus Specification)

•Each 16 Kbyte block is independently addressable

•Two sets (four sockets each) of 32-pin JEDEC sockets

•Various combinations of RAM (32K-2M) and EPROM

(16K-2M)

•Optional wait state for slow device types

•Selectable hardware and software write protect to aid debugging

•No wait states needed at 5 or 8 MHz with fast memory chips

•Supports EMS versions 3.2 and 4.0 as well as EEMS version 3.2

•Supports 5V-only Flash EPROMS

•2 Mbyte maximum on-board storage

•Optional 1 Amp-hour battery backup

•Burned in and tested

•TTL-compatible

•The CMOS version ZT 88CT25 operates at substantially lower

power (0.5 W typical as compared to 2.5 W typical for the

ZT 8825)

•The ZT 88CT25 operates over a temperature range of -40˚ to

+85˚C

1-4

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Chapter 2

GETTING STARTED