Tektronix TMS161 Instruction Manual

Instruction Manual

TMS 161
80960Cx Microprocessor Support

070-9816-00

There are no current European directives that
apply to this product. This product provides
cable and test lead connections to a test object of
electronic measuring and test equipment.

Warning

The servicing instructions are for use by
qualified personnel only. To avoid personal
injury, do not perform any servicing unless you
are qualified to do so. Refer to all safety
summaries prior to performing service.

Copyright  T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are
protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.

T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.

Printed in the U.S.A.

T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

SOFTWARE WARRANTY

T ektronix warrants that the media on which this software product is furnished and the encoding of the programs on
the media will be free from defects in materials and workmanship for a period of three (3) months from the date of
shipment. If a medium or encoding proves defective during the warranty period, T ektronix will provide a
replacement in exchange for the defective medium. Except as to the media on which this software product is
furnished, this software product is provided “as is” without warranty of any kind, either express or implied.
T ektronix does not warrant that the functions contained in this software product will meet Customer’s
requirements or that the operation of the programs will be uninterrupted or error-free.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period. If T ektronix is unable to provide a replacement that is free from defects in materials and
workmanship within a reasonable time thereafter, Customer may terminate the license for this software product
and return this software product and any associated materials for credit or refund.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS
OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT IS
THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS
WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER
TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.

HARDWARE WARRANTY

T ektronix warrants that the products that it manufactures and sells will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If a product proves defective during this
warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor,
or will provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by T ektronix, with
shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a
location within the country in which the T ektronix service center is located. Customer shall be responsible for
paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than T ektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-T ektronix supplies; or d) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time
or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS
OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR
THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Table of Contents

Getting Started

Operating Basics

General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface: Microprocessor Support Documentation ix. . . . . . . . . . . . . . . .

Manual Conventions ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Analyzer Documentation x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contacting T ektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Support Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Analyzer Software Compatibility 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Analyzer Configuration 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Requirements and Restrictions 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring the Probe Adapter 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting to a System Under T est 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PGA Probe Adapter 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Without a Probe Adapter 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Up the Support 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Channel Group Definitions 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clocking Options 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquiring and Viewing Disassembled Data 2–7. . . . . . . . . . . . . . . . . . . . .

Acquiring Data 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Viewing Disassembled Data 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Display Format 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Software Display Format 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Flow Display Format 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Subroutine Display Format 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing How Data is Displayed 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Display Selections 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Burst or Burst Pipelining Mode Addressing 2–12. . . . . . . . . . . . . . . . . . . . . . . . .

A0 and A1 Signals 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Marking Cycles 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Viewing an Example of Disassembled Data 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . .

TMS 161 80960Cx Microprocessor Support Instruction Manual

i

Table of Contents

Specifications

Maintenance

Specifications 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Adapter Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring the Probe Adapter 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Channel Assignments 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

How Data is Acquired 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Custom Clocking 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clocking Options 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Synthesized Signals 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alternate Microprocessor Connections 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signals On the Probe Adapter 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Extra Channels 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Adapter Circuit Description 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing Signal Leads 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing Protective Sockets 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replaceable Electrical Parts

Replaceable Electrical Parts 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Ordering Information 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Replaceable Electrical Parts List 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replaceable Mechanical Parts

Replaceable Mechanical Parts 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Ordering Information 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Replaceable Mechanical Parts List 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . .

Index

ii

TMS 161 80960Cx Microprocessor Support Instruction Manual

List of Figures

Table of Contents

Figure 1–1: Location of the DIP switches on the probe adapter 1–4. . . . .

Figure 1–2: Placing the microprocessor into the ZIF socket 1–6. . . . . . . .

Figure 1–3: Connecting the probes to the probe adapter 1–7. . . . . . . . . .

Figure 1–4: Placing the probe adapter onto the SUT 1–8. . . . . . . . . . . . .

Figure 2–1: Hardware display format 2–9. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–1: Minimum clearance of the standard probe adapter 3–5. . . .

Figure 3–2: 80960Cx bus timing 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 6–1: Exploded view of probe adapter 6–5. . . . . . . . . . . . . . . . . . . .

TMS 161 80960Cx Microprocessor Support Instruction Manual

iii

Table of Contents

List of Tables

Table 1–1: Region table entry and DIP switch settings 1–4. . . . . . . . . . . .

Table 1–2: Address region and DIP switch assignments 1–5. . . . . . . . . . .

Table 1–3: 80960Cx signal connections for channel probes 1–9. . . . . . . .

Table 1–4: 80960Cx signal connections for clock probes 1–10. . . . . . . . . . .

Table 2–1: Control group symbol table definitions 2–2. . . . . . . . . . . . . . .

Table 2–2: Intr Group symbol table, dedicated mode* 2–3. . . . . . . . . . . .

Table 2–3: Misc group symbol table definitions 2–3. . . . . . . . . . . . . . . . .

Table 2–4: Initialization boot record (IBR) symbol table 2–4. . . . . . . . . .

Table 2–5: Process control block (PRCB) symbol table 2–4. . . . . . . . . . .

Table 2–6: System procedure table symbol table 2–5. . . . . . . . . . . . . . . .

Table 2–7: Interrupt Table symbol table 2–5. . . . . . . . . . . . . . . . . . . . . . .

Table 2–8: Fault Table symbol table 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–9: Control Table symbol table* 2–6. . . . . . . . . . . . . . . . . . . . . . . .

Table 2–10: Special characters in the display and meaning 2–8. . . . . . . .

Table 2–11: Cycle type definitions 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–12: Triggering on specific addresses 2–12. . . . . . . . . . . . . . . . . . . .

Table 3–1: Electrical specifications 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–2: Environmental specifications[ 3–4. . . . . . . . . . . . . . . . . . . . . .

Table 3–3: Certifications and compliances 3–4. . . . . . . . . . . . . . . . . . . . . .

Table 3–4: Address group channel assignments 3–6. . . . . . . . . . . . . . . . . .

Table 3–5: Data group channel assignments 3–7. . . . . . . . . . . . . . . . . . . . .

Table 3–6: Control group channel assignments 3–8. . . . . . . . . . . . . . . . . .

Table 3–7: DataSize group channel assignments 3–9. . . . . . . . . . . . . . . . .

Table 3–8: Intr group channel assignments 3–9. . . . . . . . . . . . . . . . . . . . .

Table 3–9: Misc group channel assignments 3–10. . . . . . . . . . . . . . . . . . . . .

Table 3–10: Clock channel assignments 3–10. . . . . . . . . . . . . . . . . . . . . . . .

Table 3–11: Synthesized signals 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–12: Extra module sections and channels 3–14. . . . . . . . . . . . . . . .

iv

TMS 161 80960Cx Microprocessor Support Instruction Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.

To Avoid Fire or
Personal Injury

Connect and Disconnect Properly . Do not connect or disconnect probes or test

leads while they are connected to a voltage source.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings

and marking on the product. Consult the product manual for further ratings
information before making connections to the product.

Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.

Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.

Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.

Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.

Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry .
Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

Symbols and Terms

TMS 161 80960Cx Microprocessor Support Instruction Manual

T erms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.

v

General Safety Summary

CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.

T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the

marking.
WARNING indicates an injury hazard not immediately accessible as you read the

marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:

WARNING

High Voltage

Protective Ground

(Earth) T erminal

CAUTION

Refer to Manual

Double

Insulated

vi

TMS 161 80960Cx Microprocessor Support Instruction Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service

procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this

product unless another person capable of rendering first aid and resuscitation is
present.

Disconnect Power. To avoid electric shock, disconnect the main power by means
of the power cord or, if provided, the power switch.

Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.

To avoid electric shock, do not touch exposed connections.

TMS 161 80960Cx Microprocessor Support Instruction Manual

vii

Service Safety Summary

viii

TMS 161 80960Cx Microprocessor Support Instruction Manual

Preface: Microprocessor Support Documentation

This instruction manual contains specific information about the TMS 161
80960Cx microprocessor support and is part of a set of information on how to
operate this product on compatible Tektronix logic analyzers.

If you are familiar with operating microprocessor supports on the logic analyzer
for which the TMS 161 80960Cx support was purchased, you will probably only
need this instruction manual to set up and run the support.

If you are not familiar with operating microprocessor supports, you will need to
supplement this instruction manual with information on basic operations to set up
and run the support.

Information on basic operations of microprocessor supports is included with each
product. Each logic analyzer has basic information that describes how to perform
tasks common to supports on that platform. This information can be in the form
of online help, an installation manual, or a user manual.

This manual provides detailed information on the following topics:
H Connecting the logic analyzer to the system under test

Manual Conventions

H Setting up the logic analyzer to acquire data from the system under test
H Acquiring and viewing disassembled data
H Using the probe adapter

This manual uses the following conventions:
H The term disassembler refers to the software that disassembles bus cycles

into instruction mnemonics and cycle types.

H The phrase “information on basic operations” refers to online help, an

installation manual, or a basic operations of microprocessor supports user
manual.

H In the information on basic operations, the term XXX or 68340 used in field

selections and file names can be replaced with 960CA. This is the name of
the microprocessor in field selections and file names you must use to operate
the 80960Cx support.

H The term system under test (SUT) refers to the microprocessor-based system

from which data will be acquired.

TMS 161 80960Cx Microprocessor Support Instruction Manual

ix

Preface: Microprocessor Support Documentation

H The term logic analyzer refers to the Tektronix logic analyzer for which this

product was purchased.

H The term module refers to a 102/136-channel or 96-channel module.
H A pound sign (#) following a signal name indicates an active low signal.

Logic Analyzer Documentation

A description of other documentation available for each type of Tektronix logic
analyzer is located in the corresponding module user manual. The manual set
provides the information necessary to install, operate, maintain, and service the
logic analyzer and associated products.

Contacting Tektronix

Product
Support

Service
Support

For other
information

To write us Tektronix, Inc.

For application-oriented questions about a Tektronix measure­ment product, call toll free in North America:
1-800-TEK-WIDE (1-800-835-9433 ext. 2440)
6:00 a.m. – 5:00 p.m. Pacific time

Or, contact us by e-mail:
[e-mail]

For product support outside of North America, contact your
local Tektronix distributor or sales office.

Contact your local Tektronix distributor or sales office. Or, visit
our web site for a listing of worldwide service locations.

http://www.tek.com
In North America:

1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.

P.O. Box 1000
Wilsonville, OR 97070-1000

x

TMS 161 80960Cx Microprocessor Support Instruction Manual

Getting Started

Getting Started

Support Description

This chapter provides information on the following topics:

H A description of the TMS 161 microprocessor support
H Logic analyzer software compatibility
H Your system under test requirements
H Support restrictions
H How to configure the probe adapter
H How to connect to the system under test (SUT)

The 80960Cx microprocessor support disassembles data from systems that are
based on the Intel, Inc. 80960Cx microprocessor. The support runs on a
compatible Tektronix logic analyzer equipped with a 102/136-channel module or
a 96-channel module.

Refer to information on basic operations to determine how many modules and
probes your logic analyzer needs to meet the minimum channel requirements for
the 80960Cx microprocessor support.

The TMS 161 supports the 80960Cx microprocessor in a 168-pin PGA package.
A complete list of standard and optional accessories is provided at the end of the

parts list in the Replaceable Mechanical Parts chapter.
To use this support efficiently, you need to have the items listed in the informa-

tion on basic operations as well as the following documents:
H 80960CA 32-Bit High Performance Embedded Processor Data Sheet, Intel,

270727-001, September 1989

H 80960CA User’s Manual, Intel, 270710-001, 1989
H 80960CA User’s Manual Errata Revision 2.0, Intel, December 19, 1989.

Information on basic operations also contains a general description of supports.

TMS 161 80960Cx Microprocessor Support Instruction Manual

1–1

Getting Started

Logic Analyzer Software Compatibility

The label on the microprocessor support floppy disk states which version of logic
analyzer software the support is compatible with.

Logic Analyzer Configuration

To use the 80960Cx support, the Tektronix logic analyzer must be equipped with
either a 102/136-channel module, or a 96-channel module at a minimum. The
module must be equipped with enough probes to acquire clock and channel data
from signals in your 80960Cx-based system.

Refer to information on basic operations to determine how many modules and
probes the logic analyzer needs to meet the channel requirements.

Requirements and Restrictions

You should review the general requirements and restrictions of microprocessor
supports in the information on basic operations as they pertain to your SUT.

You should also review electrical, environmental, and mechanical specifications
in the Specifications chapter in this manual as they pertain to your system under
test, as well as the following descriptions of other 80960Cx support requirements
and restrictions.

System Clock Rate. The microprocessor support product supports the 80960Cx
microprocessor at speeds of up to 33 MHz

Burst Mode Limitations. The 80960Cx microprocessor increments only the lower
two address bits in burst mode, and the TMS 161 latches only the initial address
and BE#3–BE#0, which allows the logic analyzer to acquire data at a speed for
both the pipeline and burst mode.

Little-Endian Byte Ordering. The disassembler always uses Little-Endian byte
ordering for instruction disassembly. Little-Endian byte ordering is when the
least significant data byte is located at the lowest address.

Disabling the Instruction Cache. You must disable the internal instruction cache.
Disabling the cache makes most instructions visible on the bus so the logic
analyzer can acquire and display them.

1

.

1–2

1

Specification at time of printing. Contact your Tektronix sales representative for
current information on the fastest devices supported.

TMS 161 80960Cx Microprocessor Support Instruction Manual

Getting Started

The disassembler might display flushed cycles for cycles that are not flushed
when the 80960Cx internal instruction cache is in use. With the instruction cache
turned on, the logic analyzer is only able to capture the instruction accesses that
do not reside in the internal cache. It is difficult for the disassembler to decipher
program execution when only a few instructions are visible.

Some instructions still might not appear in tight loops because the 80960Cx
microprocessor has a cache prefetch queue (16 words deep), which is separate
from the internal instruction cache and cannot be disabled. This might change
with later versions of the 80960Cx microprocessor. Contact Intel if you have
questions regarding the behavior of the various versions of the microprocessor.

Hardware Reset. If a hardware rest occurs in your 80960Cx system during an
acquisition, the disassembler might acquire an invalid sample.

Probe Adapter Loading. Any electrical connection to your system adds an
additional AC and DC load. The probe adapter was carefully designed to add a
minimum load to your system. However, this additional load may affect the
operation of the 80960Cx microprocessor in systems with extremely tight timing
margins. The Specifications chapter contains complete specifications on how the
probe adapter affects your system.

Intel states that they will not guarantee that the 25 MHz and 33 MHz versions of
the 80960Cx will function properly with more than one protective socket
installed in the 80960Cx system. The probe adapter contains one ZIF socket and
two protective sockets. If loading from these sockets is a problem, remove the
ZIF socket first. If loading is still a problem, you can remove the protective
sockets from the underside of the probe adapter. Refer to the discussion on
Removing and Replacing Sockets in the information on basic operations for
instructions.

Configuring the Probe Adapter

The 80960Cx microprocessor uses the high-order four address lines to define 16
memory regions. The characteristics of each region is set up by software at
power-up. You must set the DIP switches on the probe adapter to match the
software settings of the “ready” mask for each memory region.

All the switches are open when the probe adapter is shipped; READY# is always
monitored in all the memory regions until you change the settings. Figure 1–1
shows the location of the DIP switches on the probe adapter.

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Getting Started

S220

S120

Figure 1–1: Location of the DIP switches on the probe adapter

To configure the probe adapter, follow these steps:

1. Determine how the 80960Cx system is configured in each of its regions.

Compare the lower three bits for each region to the bit values in Table 1–1 to
determine how to set the DIP switch on the probe adapter.

T able 1–1: Region table entry and DIP switch settings

Pipeline
Enable bit 2

0 0 0 Closed Normal cycles only; READY# input is disabled
0 0 1 Closed Burst cycles enabled; READY# and BTERM# inputs are disabled
0 1 0 Open Normal cycles only; READY# input is enabled
0 1 1 Open Burst cycles enabled; READY# and BTERM# inputs are enabled
1 0 0 Closed Pipelined read cycles enabled, normal write cycles; READY# input

1 0 1 Closed Pipelined burst read cycles enabled. Burst write cycles enabled.

1 1 0 Open READY# input ignored for reads, valid for writes
1 1 1 Closed READY# input ignored (illegal state)

READY
Enable bit 1

Burst
Enable bit 0

DIP switch
setting

Definition

is disabled

READY# and BTERM# inputs are disabled

2. Use Table 1–2 to determine which DIP switch to set for each memory region.

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TMS 161 80960Cx Microprocessor Support Instruction Manual

T able 1–2: Address region and DIP switch assignments

Getting Started

Address region
(A31-A28)

5 (1111) S120-F 7 (0111) S220-7
4 (1110) S120-E 6 (0110) S220-6
3 (1101) S120-D 5 (0101) S220-5
2 (1100) S120-C 4 (0100) S220-4
1 (1011) S120-B 3 (0011) S220-3
0 (1010) S120-A 2 (0010) S220-2
9 (1001) S120-9 1 (0001) S220-1
8 (1000) S120-8 0 (0000) S220-0

Connecting to a System Under Test

Before you connect to the SUT, you must connect the probes to the module.
Your SUT must also have a minimum amount of clear space surrounding the
microprocessor to accommodate the probe adapter. Refer to the Specifications
chapter in this manual for the required clearances.

The channel and clock probes shown in this chapter are for a 102/136-channel
module. The probes will look different if you are using a 96-channel module.

Switch

Address region
(A31-A28)

Switch

PGA Probe Adapter

The general requirements and restrictions of microprocessor supports in the
information on basic operations shows the vertical dimensions of a channel or
clock probe connected to square pins on a circuit board.

To connect the logic analyzer to the SUT, follow these steps:

1. Turn off power to your SUT. It is not necessary to turn off power to the logic

analyzer.

CAUTION. Static discharge can damage the microprocessor, the probe adapter,
the podlets, or the Module. To prevent static damage, handle all of the above
only in a static-free environment.

Always wear a grounding wrist strap or similar device while handling the
microprocessor and probe adapter.

2. To discharge your stored static electricity, touch the ground connector located

on the back of the logic analyzer. Then, touch any of the ground pins of the
probe adapter to discharge stored static electricity from the probe adapter.

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NOTE. If your SUT has a ZIF socket with a lever attached, you might need to
remove the protective socket from the bottom of the probe adapter, place it in
your system’s ZIF socket and then close the ZIF socket. Refer to information on
basic operations for a description of how to remove protective socket from the
probe adapter.

3. Place the probe adapter onto the antistatic shipping foam to support the probe

as shown in Figure 1–2. This prevents the circuit board from flexing and the
socket pins from bending.

4. Remove the 80960Cx microprocessor from your SUT.

5. Open the ZIF socket on the probe adapter (pull the lever up and away from

the socket).

6. Line up the pin A1 indicator on the probe adapter board with the pin A1

indicator on the microprocessor.

CAUTION. Failure to correctly place the microprocessor into the probe adapter
may permanently damage the microprocessor once power is applied.

7. Lock the ZIF socket in the closed position (push the lever down).

8. Place the microprocessor into the ZIF socket as shown in Figure 1–2.

Microprocessor

Probe Adapter

Foam

1–6

Figure 1–2: Placing the microprocessor into the ZIF socket

TMS 161 80960Cx Microprocessor Support Instruction Manual

Getting Started

9. Connect the clock and 8-channel probes to the probe adapter as shown in

Figure 1–3. Match the channel groups and numbers on the probe labels to the
corresponding pins on the probe adapter.

8-channel probe

and podlet holder

Hold the 8-channel probes by the
podlet holder when connecting them to
the probe adapter. Do not hold them
by the cables or necks of the podlets.

Foam

Figure 1–3: Connecting the probes to the probe adapter

Clock probe

Probe adapter

10. Line up the pin A1 indicator on the probe adapter board with the pin A1

indicator on your SUT.

11. Place the probe adapter onto the SUT as shown in Figure 1–4.

NOTE. You may need to stack one or more replacement sockets between the SUT
and the probe adapter to provide sufficient vertical clearance from adjacent
components. However, keep in mind that this may increase loading, which can
reduce the electrical performance of your probe adapter.

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Getting Started

SUT socket

Without a Probe Adapter

Figure 1–4: Placing the probe adapter onto the SUT

You can use channel probes, clock probes, and leadsets with a commercial test
clip (or adapter) to make connections between the logic analyzer and your SUT.

To connect the probes to 80960Cx signals in the SUT using a test clip, follow
these steps:

1. Turn off power to your SUT. It is not necessary to turn off power to the logic

analyzer.

CAUTION. Static discharge can damage the microprocessor, the probes, or the
module. To prevent static damage, handle all of the above only in a static-free
environment.

Always wear a grounding wrist strap or similar device while handling the
microprocessor.

2. To discharge your stored static electricity, touch the ground connector located

on the back of the logic analyzer. If you are using a test clip, touch any of the
ground pins on the clip to discharge stored static electricity from it.

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Getting Started

3. Use Table 1–3 to connect the channel probes to 80960Cx signal pins on the

test clip or in the SUT.
Use leadsets to connect at least one ground lead from each channel probe and

the ground lead from each clock probe to ground pins on your test clip.

T able 1–3: 80960Cx signal connections for channel probes

Section:channel 80960Cx signal Section:channel 80960Cx signal

A3:7 A31 D3:7 D31
A3:6 A30 D3:6 D30
A3:5 A29 D3:5 D29
A3:4 A28 D3:4 D28
A3:3 A27 D3:3 D27
A3:2 A26 D3:2 D26
A3:1 A25 D3:1 D25
A3:0 A24 D3:0 D24
A2:7 A23 D2:7 D23
A2:6 A22 D2:6 D22
A2:5 A21 D2:5 D21
A2:4 A20 D2:4 D20
A2:3 A19 D2:3 D19
A2:2 A18 D2:2 D18
A2:1 A17 D2:1 D17
A2:0 A16 D2:0 D16
A1:7 A15 D1:7 D15
A1:6 A14 D1:6 D14
A1:5 A13 D1:5 D13
A1:4 A12 D1:4 D12
A1:3 A1 1 D1:3 D11
A1:2 A10 D1:2 D10
A1:1 A9 D1:1 D9
A1:0 A8 D1:0 D8
A0:7 A7 D0:7 D7
A0:6 A6 D0:6 D6
A0:5 A5 D0:5 D5
A0:4 A4 D0:4 D4
A0:3 A3 D0:3 D3
A0:2 A2 D0:2 D2
A0:1 A1* D0:1 D1
A0:0 A0* D0:0 D0

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T able 1–3: 80960Cx signal connections for channel probes (cont.)

Section:channel 80960Cx signalSection:channel80960Cx signal

C3:7 D/C# C2:7
C3:6
C3:5 W/R# C2:5
C3:4
C3:3
C3:2
C3:1
C3:0
C1:7
C1:6
C1:5
C1:4
C1:3
C1:2
C1:1
C1:0

* Signal grounded on the TMS 161 probe adapter; not an 80960Cx signal.

WAIT#[

PCLK2[
BE0#[ C2:3w P_DMA]
DMA#[ C2:2w
BE1#[ C2:1w ADS#[
HOLD[ C2:0w P_BTERM#]
RESET#[
XINT2#[
XINT5#[
XINT3#[
NMI#[
XINT7#[
XINT6#[
XINT4#[

C2:6

C2:4 BOFF#

C0:7
C0:6
C0:5
C0:4
C0:3 LOCK#
C0:2
C0:1
C0:0

BE2#[
READY#[
BE3#[

BLAST#

SUP#[
HOLDA[
BTERM[
DEN#[

DT/R#[
XINT0#[
XINT1#[

[ Signal not required for disassembly.
] Signal synthesized on the TMS 161 probe adapter; not an 80960Cx signal.
w Clock qualifier channel.

Table 1–4 shows the clock probes and the 80960Cx signal to which they must
connect for disassembly to be correct.

T able 1–4: 80960Cx signal connections for clock probes

Section:channel 80960Cx signal

CK:3 WAIT#
CK:2 P_READY#*
CK:1 PCLK1
CK:0 BOFF#

* Signal synthesized on the TMS 161 probe adapter; not an 80960Cx signal.

4. Align pin 1 or A1 of your test clip with the corresponding pin 1 or A1 of the

80960Cx microprocessor in your SUT and attach the clip to the micropro­cessor.

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TMS 161 80960Cx Microprocessor Support Instruction Manual