Tektronix TMS261 Instruction Manual

Instruction Manual

TMS 261
68360 Microprocessor Support

070-9825-01

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 E 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

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

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

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

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

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

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

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Memory Size Jumper 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RAS/Trans Jumper 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

68360/68040 Clocking Jumper 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CLK01/EXTAL Clock Jumper 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A31-A28/WE3-WE0 Signal Jumpers 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Source Jumper 1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CS/RAS Signal Selection Switch Block 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting to a System Under T est 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low-Profile Probe Adapter with a High-Density Probe 1–9. . . . . . . . . . . . . . . .

Conventional Probe Adapter 1–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Names Printed on the Conventional Probe Adapter

or High-Density Probe 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Without a Probe Adapter 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applying and Removing Power 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Basics

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

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

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

Probe Interface T ype 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alternate Bus Master Cycles 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Refresh Cycles 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Acquiring and Viewing Disassembled Data 2–5. . . . . . . . . . . . . . . . . . . . .

Acquiring Data 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Viewing Disassembled Data 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Display Format 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Software Display Format 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Flow Display Format 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Subroutine Display Format 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing How Data is Displayed 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optional Display Selections 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TMS 261 68360 Microprocessor Support Instruction Manual

i

Table of Contents

Specifications

Maintenance

Marking Cycles 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Viewing an Example of Disassembled Data 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Configuration 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Channel Assignments 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

How Data is Acquired 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Custom Clocking 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clocking Options 3–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alternate Microprocessor Connections 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signals On the Probe Adapter 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signals Not On the Probe Adapter 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Extra Channels 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Replacing the Fuse 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replaceable Electrical Parts

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

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

Replaceable Mechanical Parts

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

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

Index

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TMS 261 68360 Microprocessor Support Instruction Manual

List of Figures

Table of Contents

Figure 1–1: Memory Size jumper location 1–3. . . . . . . . . . . . . . . . . . . . . .

Figure 1–2: RAS/Trans jumper location 1–4. . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–3: 68360/68040 clocking jumper location 1–5. . . . . . . . . . . . . . .

Figure 1–4: CLK01/EXTAL clock jumper location 1–6. . . . . . . . . . . . . . .

Figure 1–5: A31-A28/WE3-WE0 signal jumpers locations 1–7. . . . . . . . .

Figure 1–6: Power Source jumper location 1–8. . . . . . . . . . . . . . . . . . . . . .

Figure 1–7: Placing a microprocessor into a PGA probe adapter 1–11. . .

Figure 1–8: Placing a PGA probe adapter onto the SUT 1–12. . . . . . . . . .

Figure 1–9: Connecting channel and clock probes to a

high-density probe 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–10: Connecting LO and HI cables to a high-density probe 1–14.
Figure 1–11: Placing a microprocessor into a PGA probe adapter 1–15. .

Figure 1–12: Connecting probes to a PGA probe adapter 1–16. . . . . . . . .

Figure 1–13: Placing a PGA probe adapter onto the SUT 1–17. . . . . . . . .

Figure 1–14: Location of the power jack 1–21. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–1: Hardware display format 2–8. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–1: Jumper and switch locations on the probe adapters 3–3. . . .

Figure 3–2: Dimensions of the low-profile probe adapter 3–8. . . . . . . . . .

Figure 3–3: Tie-down hole placement on the low-profile

probe adapter 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–4: Dimensions of the conventional probe adapter 3–10. . . . . . . .

Figure 3–5: 68360 bus timing 3–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–6: 68040 bus timing 3–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–7: Miscellaneous pin strips for alternate connections 3–18. . . . .

Figure 4–1: Location of the fuse 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TMS 261 68360 Microprocessor Support Instruction Manual

iii

Table of Contents

List of Tables

Table 1–1: Switch numbers and CS/RAS signals 1–9. . . . . . . . . . . . . . . . .

Table 1–2: Probe connections printed on the conventional probe

adapter or high-density probe 1–17. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–3: 68360 signal connections for channel probes 1–18. . . . . . . . . .

Table 1–4: 68360 signal connections for clock probes 1–20. . . . . . . . . . . . .

Table 2–1: Control group symbol table definitions 2–3. . . . . . . . . . . . . . .

Table 2–2: Meaning of special characters in the display 2–6. . . . . . . . . .

Table 2–3: Cycle type definitions 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–1: Jumper positions and functions 3–2. . . . . . . . . . . . . . . . . . . . .

Table 3–2: Switch numbers and CS/RAS signals 3–4. . . . . . . . . . . . . . . . .

Table 3–3: Electrical specifications: Low-profile probe adapter 3–4. . . .

Table 3–4: Typical SUT signal loading: Low-profile probe adapter 3–5.
Table 3–5: Electrical specifications: Conventional probe adapter 3–6. .
Table 3–6: Typical SUT signal loading: Conventional probe adapter 3–7

Table 3–7: Environmental specifications 3–7. . . . . . . . . . . . . . . . . . . . . . .

Table 3–8: Certifications and compliances 3–8. . . . . . . . . . . . . . . . . . . . . .

Table 3–9: Address group channel assignments 3–11. . . . . . . . . . . . . . . . . .

Table 3–10: Data group channel assignments 3–12. . . . . . . . . . . . . . . . . . . .

Table 3–11: Control group channel assignments 3–13. . . . . . . . . . . . . . . . .

Table 3–12: DataSize group channel assignments 3–13. . . . . . . . . . . . . . . .

Table 3–13: Misc group channel assignments 3–14. . . . . . . . . . . . . . . . . . .

Table 3–14: Clock channel assignments 3–14. . . . . . . . . . . . . . . . . . . . . . . .

Table 3–15: Pin strip names used for alternate connections 3–18. . . . . . .

Table 3–16: AUX0 pin strip signals 3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–17: AUX pin strip signals 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–18: JTAG pin strip signals 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–19: BDM pin strip signals 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–20: Timers pin strip signals 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–21: PortA pin strip signals 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–22: PortB pin strip signals 3–23. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–23: PortC pin strip signals 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–24: Extra module sections and channels 3–25. . . . . . . . . . . . . . . .

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TMS 261 68360 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

Use Proper Power Cord. Use only the power cord specified for this product and

certified for the country of use.
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.

Use Proper AC Adapter. Use only the AC adapter specified for this product.
Do Not Operate Without Covers. Do not operate this product with covers or panels

removed.

Use Proper Fuse. Use only the fuse type and rating specified for this product.
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 261 68360 Microprocessor Support Instruction Manual

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

v

General Safety Summary

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

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

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TMS 261 68360 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 261 68360 Microprocessor Support Instruction Manual

vii

Service Safety Summary

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TMS 261 68360 Microprocessor Support Instruction Manual

Preface: Microprocessor Support Documentation

This instruction manual contains specific information about the TMS 261 68360
microprocessor support package 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 support packages on the logic
analyzer for which the TMS 261 68360 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 support packages, 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 support packages 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 P54C used in field

selections and file names must be replaced with 68360. This is the name of
the microprocessor in field selections and file names you must use to operate
the 68360 support.

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

from which data will be acquired.

TMS 261 68360 Microprocessor Support Instruction Manual

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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 a 96-channel module.
H 68360 refers to all supported variations of the 68360 microprocessor unless

otherwise noted.
H An asterisk (*) 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. 2400)
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

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TMS 261 68360 Microprocessor Support Instruction Manual

Getting Started

Getting Started

Support Description

This chapter provides information on the following topics and tasks:

H A description of the TMS 261 microprocessor support package
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)
H How to apply power to and remove power from the probe adapter

The TMS 261 microprocessor support package disassembles data from systems
that are based on the Motorola 68360 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 TMS 261 microprocessor support.

The TMS 261 supports the Motorola 68360 microprocessor in a 241-pin PGA
package. Support for the QFP package is also available by purchasing a
PGA-to-QFP converter clip from ITT Pomona (part number 5968) and using it
with this probe adapter.

The product is intended to be used with the low-profile probe adapter to connect
to the SUT. Descriptions of the conventional probe adapter are also included if
you purchased an earlier version of the product.

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 informa­tion on basic operations as well as the MC68360 Quad Integrated Communica-
tions Controller User’s Manual, Motorola, 1993.

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

TMS 261 68360 Microprocessor Support Instruction Manual

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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 68360 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 channel and clock data
from signals in your 68360-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 68360 support requirements
and restrictions.

System Clock Rate. The TMS 261 support can acquire data from the 68360
microprocessor at speeds of up to 33 MHz

DSACK Signals. The 68360 microprocessor allows 8-, 16-, and 32-bit data
transfers. The DSACK group of signals, which indicate which bytes on the bus
are valid, are not always asserted. When the DSACK signals are not asserted, the
software disassembles data using the selection in the Int DSACKs Bus Width
field. Refer to the Operating Basics section for more information on this field.

Valid Address Lines. The address bus is 28- or 32-bits wide. You can select either
bus width in the Disassembly Format Definition overlay.

1

; it has been tested to 25 MHz.

1–2

1

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

TMS 261 68360 Microprocessor Support Instruction Manual

Configuring the Probe Adapter

There are nine jumpers and one switch bank on the probe adapter. The jumpers
and switch descriptions apply to both the low-profile and conventional probe
adapters; the circuit numbers may differ, but the functionality is identical unless
otherwise indicated.

Getting Started

Memory Size Jumper

Low-profile probe adapter Conventional probe adapter

Memory

size jumper

If the SUT uses dynamic memory controlled by the 68360 microprocessor, you
should place the Memory Size jumper in the position that corresponds to the
memory size used. The jumper positions are: 128, 256, or 512 Kbytes, or 1, 2, 4,
8, 16, or 32 Mbytes.

If the SUT does not use dynamic memory, you can place the Memory Size
jumper in any position.

You can also place the Memory Size jumper in any position if the RAS/Trans
jumper is in the Trans position.

Figure 1–1 shows the location of the Memory Size jumper on the probe adapter.

Memory size jumper

Figure 1–1: Memory Size jumper location

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

RAS/Trans Jumper

If your SUT does not use dynamic memory, or if you want to acquire data using
Internal clocking (asynchronous), you should place the RAS/Trans Jumper in the
Trans (transparent) position. This is the default setting.

If your SUT uses dynamic memory, you should place the RAS/Trans jumper in
the RAS (row address strobe) position. This causes the probe adapter to rearrange
the upper and lower bits of the Address group for disassembly during DRAM
accesses.

If you do not know the size of the dynamic memory, or which RAS lines are
used, then place the jumper in the Trans position.

NOTE. The RAS position meets Motorola’s requirement that the complete address
not be on the bus at the end of each RAS/CAS cycle. Observations on a limited
set of microprocessors show that the complete address is on the bus at the end of
each RAS/CAS cycle. If you find that the microprocessor does not place the
complete address on the bus at the end of a RAS/CAS cycle (CAS part), then
place the jumper in the RAS position.

Figure 1–2 shows the location of the RAS/Trans jumper.

Low-profile probe adapter Conventional probe adapter

RAS/trans

jumper

Figure 1–2: RAS/Trans jumper location

RAS/trans

jumper

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TMS 261 68360 Microprocessor Support Instruction Manual

Getting Started

68360/68040 Clocking

Low-profile probe adapter Conventional probe adapter

68360/68040

clocking jumper

Jumper

If you want to acquire data using standard 68360 signals (such as AS* and DS*),
you should place the 68360/68040 Clocking jumper in the 68360 position. This is
the default setting.

If you want to acquire data using 68040-type signals (such as TS* and TA*), you
should place the jumper in the 68040 position.

Figure 1–3 shows the location of this jumper.

68360/68040

clocking jumper

Figure 1–3: 68360/68040 clocking jumper location

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

CLK01/EXTAL Clock

Jumper

Place the clock jumper in the CLK01 position when CLK01 is enabled in the
CLKOCR register. Place the jumper in the EXTAL position when the EXTAL
signal is driven with the system frequency.

Figure 1–4 shows the location of the CLK01/EXTAL jumper. This jumper is only
available on the low-profile probe adapter.

CLK01/EXTAL

clock jumper

1–6

Figure 1–4: CLK01/EXT AL clock jumper location

TMS 261 68360 Microprocessor Support Instruction Manual

Getting Started

A31-A28/WE3-WE0 Signal

Jumpers

The 68360 microprocessor can be configured to use either the A31-A28 address
signals or the WE3-WE0 signals. The probe adapter has four jumpers that you
must set to match the configuration of your SUT.

If the SUT is configured to use A31-A28, you should place the jumpers in the A
position. With the jumpers in the A position, the WE signals sent to the logic
analyzer are held high.

If the SUT is configured to use WE3-WE0, you should place the jumpers in the
WE position. With the jumpers in the WE position, the A31-A28 signals sent to
the logic analyzer are held low.

Figure 1–5 shows the location of the A31-A28/WE3-WE0 jumpers.

Low-profile probe adapter Conventional probe adapter

WE1*/A28

WE1*/A30

WE1*/A29

WE3*/A31

Figure 1–5: A31-A28/WE3-WE0 signal jumpers locations

WE0*/A28

WE1*/A29

WE3*/A31

WE2*/A30

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

e

Low-p

ile probe adapte

Power Source Jumper

rof

r Conventional probe adapter

If your SUT has a +3 V 68360 microprocessor or you do not want your SUT to
provide power to the 68360 probe adapter, you can use an alternate power source.
If you use an alternate power source, you should set the Power Source jumper to
the Ext Pwr position. This is the default setting.

If you do not use an alternate power source, you should set this jumper in the
SUT position. In this position, the SUT provides power to the 68360 probe
adapter.

For more information on using an alternate power source, refer to Applying and
Removing Power in this chapter.

Figure 1–6 shows the location of the Power Source jumper.

Power
Sourc
jumper

Power
Source
jumper

Figure 1–6: Power Source jumper location

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TMS 261 68360 Microprocessor Support Instruction Manual

Getting Started

CS/RAS Signal Selection

Switch Block

The CS/RAS Signal Selection switch block has a switch for each RAS signal that
the SUT might use. For each RAS signal used, you should close the correspond­ing switch on the RAS Signal Selection switch block. If the SUT does not use
dynamic memory, you should open all the switches.

If you do not know which RAS lines are used by the SUT, you should open all
the switches and place the RAS/Trans jumper in the Trans position.

Table 1–1 shows the switch numbers printed on the switch block and the CS or
RAS signal that connects to each switch.

T able 1–1: Switch numbers and CS/RAS signals

Switch number Signal name

1 CS0*/RAS0*

2 CS1*/RAS1*

3 CS2*/RAS2*

4 CS3*/RAS3*

5 CS4*/RAS4*

6 CS5*/RAS5*

7 CS6*/RAS6*

8 CS7*/RAS7*

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.

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.

Low-Profile Probe Adapter

with a High-Density Probe

If a probe adapter has one or two high-density cables (probe adapter does not
have pins to which the channel and clock probes connect), the probe adapter
requires a high-density probe to make connections between the logic analyzer
and a SUT.

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

To connect the logic analyzer to a SUT using the low-profile probe adapter and a
high-density probe, 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 low-profile probe
adapter, 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 and low-profile probe adapter.

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

on the back of the logic analyzer. Then, touch the black foam on the

underside of the probe adapter to discharge stored static electricity from the

probe adapter.

3. Remove the microprocessor from the SUT.

4. 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
might permanently damage the microprocessor once power is applied.

5. Place the microprocessor into the probe adapter as shown in Figure 1–7.

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TMS 261 68360 Microprocessor Support Instruction Manual

Microprocessor

Getting Started

Pin A1

Figure 1–7: Placing a microprocessor into a PGA probe adapter

6. Remove the black foam from the underside of the probe adapter.

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

indicator on the SUT.

8. Place the probe adapter onto the SUT as shown in Figure 1–8.

NOTE. You might 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 this might increase loading, which can
reduce the electrical performance of the probe adapter.

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

SUT socket

Pin A1

Figure 1–8: Placing a PGA probe adapter onto the SUT

9. Connect the channel and clock probes to the high-density probe as shown in

Figure 1–9. Match the channel groups and numbers on the probe labels to the

corresponding pins on the high-density probe. Match the ground pins on the

probes to the corresponding pins on the probe adapter.

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TMS 261 68360 Microprocessor Support Instruction Manual

Clock probe

Getting Started

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

Channel probe
and podlet holder

Channels connect to

the logic analyzer

High-density probe

Figure 1–9: Connecting channel and clock probes to a high-density probe

10. Align pin 1 on the LO cable connector, the end on the narrowest cable strip

of the cable, with pin 1 on the LO connector on the high-density probe.
Connect the cable to the connector as shown in Figure 1–10.

NOTE. The LO cable is 12 inches long; the HI cable is 13 inches long.

11. Align pin 1 on the HI cable connector, the end on the narrowest cable strip of

the cable, with pin 1 on the HI connector on the high-density probe. Connect
the cable to the connector as shown in Figure 1–10.

TMS 261 68360 Microprocessor Support Instruction Manual

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Getting Started

HI cable

Pin 1 side

LO cable

High-density probe

Figure 1–10: Connecting LO and HI cables to a high-density probe

Conventional Probe

Adapter

To connect the logic analyzer to a SUT using a conventional probe adapter,
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 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 and probe adapter.

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TMS 261 68360 Microprocessor Support Instruction Manual