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
vi
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
viii
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
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 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:
tm_app_supp@tek.com
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
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 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
1–3
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
1–4
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
1–5
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
1–7
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
1–8
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
1–9
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.
1–10
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
1–11
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.
1–12
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
1–13
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.
1–14
TMS 261 68360 Microprocessor Support Instruction Manual
Getting Started
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.
3. Place the probe adapter onto the antistatic shipping foam to support the probe
as shown in Figure 1–11. This prevents the circuit board from flexing and the
socket pins from bending.
4. Remove the microprocessor from your SUT.
5. 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.
6. Place the microprocessor into the probe adapter as shown in Figure 1–11.
Microprocessor
Probe adapter
Foam
Figure 1–11: Placing a microprocessor into a PGA probe adapter
7. Connect the channel and clock probes to the probe adapter as shown in
Figure 1–12. Match the channel groups and numbers on the probe labels to
the corresponding pins on the probe adapter. Match the ground pins on the
probes to the corresponding pins on the probe adapter.
TMS 261 68360 Microprocessor Support Instruction Manual
1–15
Getting Started
Channel probe
and podlet holder
Hold the 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 1–12: Connecting probes to a PGA probe adapter
Clock probe
Probe adapter
8. Line up the pin A1 indicator on the probe adapter board with the pin A1
indicator on your SUT.
9. Place the probe adapter onto the SUT as shown in Figure 1–13.
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 that this might increase loading, which can
reduce the electrical performance of your probe adapter.
1–16
TMS 261 68360 Microprocessor Support Instruction Manual
SUT socket
Getting Started
Figure 1–13: Placing a PGA probe adapter onto the SUT
Probe Names Printed on
the Conventional Probe
Adapter or High-Density
Probe
The high-density probe, used with the low-profile probe adapter, has LO_ and
HI_ designators. Table 1–2 shows the clock and channel probes you need to connect
to the pins with the LO_ or HI_ designators on the conventional probe adapter or the
high-density probe.
T able 1–2: Probe connections printed on the conventional probe adapter or high-density probe
Section:
channel
A3 LO_A3 A3 C3 LO_C3 C3
A2 LO_A2 A2 C2 LO_C2 LO_C2
A1 LO_A1 A1 C1 LO_C1 C1/HI_D1
A0 LO_A0 A0 C0 LO_C0 C0/HI_D0
D3 LO_D3 D3 CK:3 LO_CK3 CK:3
D2 LO_D2 D2 CK:2 LO_CK2 CK:2
D1 LO_D1 D1 CK:1 LO_CK1 CK:1
D0 LO_D0 D0 CK:0 LO_CK0 CK:0
Channel or clock probe designator
High-density probe Conventional probe adapter High-density probe Conventional probe adapter
Section:
channel
Channel or clock probe designator
TMS 261 68360 Microprocessor Support Instruction Manual
1–17
Getting Started
Without a Probe Adapter
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 68360 signals 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.
3. Use Table 1–3 to connect the channel probes to 68360 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 (or
adapter).
T able 1–3: 68360 signal connections for channel probes
Section:channel 68360 signal Section:channel 68360 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
1–18
TMS 261 68360 Microprocessor Support Instruction Manual
Getting Started
T able 1–3: 68360 signal connections for channel probes (cont.)
Section:channel 68360 signalSection:channel68360 signal
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 A11 D1:3 D1 1
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
C3:7 FC0 C2:7 RMC*
C3:6 FC2 C2:6 BG*
C3:5
C3:4 SIZ1 C2:4
C3:3
C3:2 FC1 C2:2 TA*
C3:1
C3:0 SIZ0 C2:0 Not connected
C1:7 FREEZE C0:7 HAL T*
C1:6 16MB* C0:6 CONFIG1
C1:5 Not connected C0:5 DSACK* TA*
C1:4
C1:3 AS* C0:3 BERR*
C1:2 CONFIG0 C0:2 CONFIG2
C1:1
C1:0 IFETCH* C0:0 R/W*
[ Signal not required for disassembly.
WE3[
WE1[
WE2[
EXT AL[
AVEC IACK5[
C2:5 BGACK*
WE0[
C2:3
C2:1 DS*
C0:4 FC3
C0:1 DSACK* TBI
RESETH[
TMS 261 68360 Microprocessor Support Instruction Manual
1–19
Getting Started
Table 1–4 shows the clock probes and the 68360 signal to which they must
connect for disassembly to be correct.
T able 1–4: 68360 signal connections for clock probes
Section:channel 68360 signal
CK:3 EXTAL or CLK01
CK:2 Not connected
CK:1 Not connected
CK:0 AS* (held high in 68040 mode)
4. Align pin 1 or A1 of your test clip with the corresponding pin 1 or A1 of the
68360 microprocessor in your SUT and attach the clip.
Applying and Removing Power
If your microprocessor system cannot supply power to the 68360 probe adapter
or your system has a +3.3 V 68360 microprocessor (probe adapters need +5 V),
you must use an alternate power source. A +5 V power supply for the 68360
probe adapter is available. Refer to the Replaceable Mechanical Parts chapter for
information on how to order a power supply.
The alternate power supply provides +5 volts to the 68360 probe adapter. The
center connector of the power jack connects to Vcc.
To use the power supply, the Power Source jumper (Jxxx) on the probe adapter
must be set in the EXT position.
NOTE. Whenever the SUT is powered off, be sure to remove power from the probe
adapter.
To apply power to the 68360 probe adapter and SUT, follow these steps:
CAUTION. Failure to use the +5 V power supply provided by Tektronix might
permanently damage the probe adapter and 68360 microprocessor. Do not
mistake another power supply that looks similar for the +5 V power supply.
1–20
1. Connect the +5 V power supply to the jack on the probe adapter. Figure 1–14
shows the location of the jack on the adapter board.
TMS 261 68360 Microprocessor Support Instruction Manual
Getting Started
Low-p
ile probe adapte
CAUTION. Failure to apply power to the probe adapter before applying power to
your SUT might permanently damage the 68360 microprocessor and SUT.
2. Plug the power supply for the probe adapter into an electrical outlet.
3. Power on the SUT.
rof
r Conventional probe adapter
Figure 1–14: Location of the power jack
Power Jack
Power Jack
To remove power from the SUT and 68360 probe adapter, follow these steps:
CAUTION. Failure to power down your SUT before removing the power from the
probe adapter might permanently damage the 68360 microprocessor and SUT.
1. Power off the SUT.
2. Unplug the power supply for the probe adapter from the electrical outlet.
TMS 261 68360 Microprocessor Support Instruction Manual
1–21
Getting Started
1–22
TMS 261 68360 Microprocessor Support Instruction Manual
Operating Basics
Setting Up the Support
This section provides information on how to set up the support. Information
covers the following topics:
H Channel group definitions
H Clocking options
H Symbol table files
Remember that the information in this section is specific to the operations and
functions of the TMS 261 68360 support on any Tektronix logic analyzer for
which it can be purchased. Information on basic operations describes general
tasks and functions.
Before you acquire and disassemble data, you need to load the support and
specify setups for clocking and triggering as described in the information on
basic operations. The support provides default values for each of these setups,
but you can change them as needed.
Channel Group Definitions
Clocking Options
The software automatically defines channel groups for the support. The channel
groups for the 68360 support are Address, Data, Control, DataSize, and Misc. If
you want to know which signal is in which group, refer to the channel assignment tables beginning on page 3–10.
The TMS 261 support offers a microprocessor-specific clocking mode for the
68360 microprocessor. This clocking mode is the default selection whenever you
load the 68360 support.
A description of how cycles are sampled by the module using the support and
probe adapter is found in the Specifications chapter.
Disassembly will not be correct with the Internal or External clocking modes.
Information on basic operations describes how to use these clock selections for
general purpose analysis.
The clocking options for the TMS 261 application are: Probe Interface Type,
Alternate Bus Master Cycles, and Refresh Cycles.
TMS 261 68360 Microprocessor Support Instruction Manual
2–1
Setting Up the Support
Probe Interface Type
You can acquire data with or without using a probe adapter. If you do not use the
68360 probe adapter, keep the following in mind:
H The disassembler supports 68360 signal clocking. It does not support 68040
signal clocking.
H Dynamic memory accesses may be unpredictable when the upper address
bits are not stable at the end of a cycle.
H Alternate Bus Master cycles are always acquired and displayed.
H Refresh cycles are not acquired.
H The CK2, CK1, C2:0, and C1:5 podlets must be tied low in your SUT.
H The C2:2 podlet must be tied to Vcc in your SUT.
H The Config2–Config0 and 16MB* signals must be connected to ground or
Vcc (in your SUT) to match their values when the 68360 microprocessor
reset is removed; these signals connect to C0:2, C0:6, C1:2, and C1:6
respectively.
H If your SUT is configured to use the WE3-WE0 signals, you should connect
the C3:5, C3:1, C3:3, and C2:4 podlets to the WE3-WE0 signals and the
A31-A28 podlets (A3:7, A3:6, A3:5, and A3:4) to ground in your SUT.
Alternate Bus Master
Refresh Cycles
Symbols
Cycles
H If your SUT is configured to use the A31-A28 signals, you should connect
the A3:7, A3:6, A3:5, and A3:4 podlets to the A31-A28 signals and the
WE3-WE0 podlets (C3:5, C3:1, C3:3, and C2:4) to Vcc in your SUT.
An alternate bus master cycle is defined as the 68360 microprocessor giving up
the bus to an alternate device (a DMA device or another microprocessor). These
types of cycles are acquired when you select Included. The default selection is
Excluded.
A refresh cycle is defined as CAS before RAS when using dynamic memory.
These types of cycles are acquired when you select Included. The default
selection is Excluded.
The TMS 261 support supplies one symbol table file. The 68360_Ctrl file
replaces specific Control channel group values with symbolic values when
Symbolic is the radix for the channel group.
Table 2–1 shows the name, bit pattern, and meaning for the symbols in the file
68360_Ctrl, the Control channel group symbol table.
2–2
TMS 261 68360 Microprocessor Support Instruction Manual
T able 2–1: Control group symbol table definitions
Control group value
RESETH* BG_B* RMC* IFETCH* PORT32
FREEZE BGACK_B* R_W* CONFIG2 S68040
Symbol
RESET
B_GND_MD1
B_GND_MD2
HAL T
BUS_ERROR
AL T_RD–1
AL T_RD–2
AL T_RD–3
AL T_RD–4
AL T_RD–5
AL T_RD–6
AL T_WR–1
AL T_WR–2
AL T_WR–3
AL T_WR–4
AL T_WR–5
AL T_WR–6
68040_RD
68040_WR
READ
WRITE
PREFETCH
REFRESH BERR* AS* CONFIG1 FC3
TA_D* HALT* DS_D* CONFIG0
0XXX XXXX XXXX XXXX XXX
X1XX XXXX XXXX XX11 XXX
X1XX XXXX XXXX X10X XXX
1XXX XXX0 XXXX XXXX XXX
1XXX XX0X XXXX XXXX XXX
1XXX 1XXX X1XX XX10 XXX
1XXX 1XXX X1XX X00X XXX
1XXX 0XXX X1XX X10X XXX
1XXX 0XXX X1XX XX11 XXX
1XXX X0XX X1XX X10X XXX
1XXX X0XX X1XX XX11 XXX
1XXX 1XXX X0XX XX10 XXX
1XXX 1XXX X0XX X00X XXX
1XXX 0XXX X0XX X10X XXX
1XXX 0XXX X0XX XX11 XXX
1XXX X0XX X0XX X10X XXX
1XXX X0XX X0XX XX11 XXX
1XX0 XXXX X1XX XXXX X1X
1XX0 XXXX X0XX XXXX X1X
1XXX XXXX 110X 1XXX X00
1XXX XXXX 100X XXXX X00
1XXX XXXX X10X 0XXX X00
Setting Up the Support
Meaning
Reset
Back ground mode; this is a
dual function pin
Back ground mode; this is a
dual function pin
Halt
Bus error
BR* signal out. Alt bus master
read
BR* signal out. Alt bus master
read
BR* signal in. Alt bus master
read
BR* signal in. Alt bus master
read
BR* signal in. Alt bus master
read
BR* signal in. Alt bus master
read
BR* signal out. Alt bus master
write
BR* signal out. Alt bus master
write
BR* signal in. Alt bus master
write
BR* signal in. Alt bus master
write
BR* signal in. Alt bus master
write
BR* signal in. Alt bus master
write
68040 signals used. Read
68040 signals used. Write
Read
Write
Instruction Fetch
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Setting Up the Support
T able 2–1: Control group symbol table definitions (cont.)
Control group value
RESETH* BG_B* RMC* IFETCH* PORT32
FREEZE BGACK_B* R_W* CONFIG2 S68040
Symbol Meaning
SHOW_C_RD
SHOW_C_WR
SHOW_FETH
SH_RMW_RD
SH_RMW_WR
BERR_RTRY
1
RMW_READ
RMW_WRITE
1
RMW
DMA
REFRESH
1
Symbols used only for triggering; they do not appear in the Disassembly or State displays.
* Symbols used only for triggering; they are not displayed.
REFRESH BERR* AS* CONFIG1 FC3
TA_D* HALT* DS_D* CONFIG0
1XXX XXXX 1110 1XXX X00
1XXX XXXX 101X XXXX X00
1XXX XXXX X110 0XXX X00
1XXX XXXX 0110 XXXX X00
1XXX XXXX 001X XXXX X00
1XXX XX00 XXXX XXXX X00
1XXX XXXX 0100 XXXX X00
1XXX XXXX 000X XXXX X00
1XXX XXXX 0XXX XXXX X00
1XXX XXXX XX0X XXXX XX1
1X1X XXXX XXXX XXXX XXX
Show cycle read
Show cycle write
Show cycle fetch
Show cycle RMW read
Show cycle RMW write
Bus Error Retry
Read part of RMW cycle
Write part of RMW cycle
Read modify Write cycle
DMA access
Refresh cycle
Information on basic operations describes how to use symbolic values for
triggering and for displaying other channel groups symbolically, such as the
Address channel group.
2–4
TMS 261 68360 Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
This section describes how to acquire data and view it disassembled. Information
covers the following topics and tasks:
H Acquiring data
H Viewing disassembled data in various display formats
H Cycle type labels
H Changing the way data is displayed
H Changing disassembled cycles with the mark cycles function
Acquiring Data
Once you load the 68360 support, choose a clocking mode, and specify the
trigger, you are ready to acquire and disassemble
If you have any problems acquiring data, refer to information on basic operations
in your online help or Appendix A: Error Messages and Disassembly Pr oblems in
the basic operations user manual.
data.
Viewing Disassembled Data
You can view disassembled data in four display formats: Hardware, Software,
Control Flow, and Subroutine. The information on basic operations describes
how to select the disassembly display formats.
NOTE. Selections in the Disassembly property page (the Disassembly Format
Definition overlay) must be set correctly for your acquired data to be disassembled correctly. Refer to Changing How Data is Displayed on page 2–10.
The default display format shows the Address, Data, and Control channel group
values for each sample of acquired data.
The disassembler displays special characters and strings in the instruction
mnemonics to indicate significant events. Table 2–2 shows these special
characters and strings, and gives a definition of what they represent.
TMS 261 68360 Microprocessor Support Instruction Manual
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Acquiring and Viewing Disassembled Data
T able 2–2: Meaning of special characters in the display
Character or string displayed Meaning
>> or m The instruction was manually marked as a program fetch
**** Indicates there is insuf ficient data available for complete
# Indicates an immediate value
t Indicates the number shown is in decimal, such as #12t
disassembly of the instruction; the number of asterisks
indicates the width of the data that is unavailable. Each two
asterisks represent one byte.
Hardware Display Format
(S) or (U)
A-LINE OPCODE Displayed for an A-Line trap instruction
F-LINE OPCODE Displayed for an F-Line trap instruction
Indicates the mode in which the microprocessor is operating,
Supervisor or User
In Hardware display format, the disassembler displays certain cycle type labels in
parentheses. Table 2–3 shows these cycle type labels and gives a definition of the
cycle they represent. Reads to interrupt and exception vectors will be labeled
with the vector name.
T able 2–3: Cycle type definitions
Cycle type Definition
( 68040 READ ) 68040 signals used. Read
( 68040 WRITE ) 68040 signals used. Write
( ALT BUS MASTER: READ–1 ) Another master has control of the bus and is doing a memory
read
( ALT BUS MASTER: READ–2 ) Another master has control of the bus and is doing a memory
read
2–6
( ALT BUS MASTER: READ–3 ) Another master has control of the bus and is doing a memory
read
( ALT BUS MASTER: READ–4 ) Another master has control of the bus and is doing a memory
read
( ALT BUS MASTER: READ–5 ) Another master has control of the bus and is doing a memory
read
( ALT BUS MASTER: READ–6 ) Another master has control of the bus and is doing a memory
read
( ALT BUS MASTER: WRITE–1 ) Another master has control of the bus and is doing a memory
write
( ALT BUS MASTER: WRITE–2 ) Another master has control of the bus and is doing a memory
write
TMS 261 68360 Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
T able 2–3: Cycle type definitions (cont.)
Cycle type Definition
( ALT BUS MASTER: WRITE–3 ) Another master has control of the bus and is doing a memory
write
( ALT BUS MASTER: WRITE–4 ) Another master has control of the bus and is doing a memory
write
( ALT BUS MASTER: WRITE–5 ) Another master has control of the bus and is doing a memory
write
( ALT BUS MASTER: WRITE–6 ) Another master has control of the bus and is doing a memory
write
( BACKGROUND READ ) A read has occurred while the processor is in background
mode
( BACKGROUND WRITE ) A write has occurred while the processor is in background
mode
( BUS ERROR ) External logic aborts current bus cycle
( DMA ) DMA access
( HALT ) HALT* asserted, processor stops
( READ ) Data read from memory
( READ RMW ) Read from memory during read-modify–write cycle
( REFRESH ) Refresh cycle
( RESET ) Processor asserts RESET* signal
( SHOW CYCLE READ ) This is an internal READ made visible on the external bus
( SHOW CYCLE WRITE ) This is an internal WRITE made visible on the external bus
( SHOW CYCLE READ RMW ) This is an internal READ made visible on the external bus
(part of a RMC cycle)
( SHOW CYCLE WRITE RMW ) This is an internal WRITE made visible on the external bus
(part of a RMC cycle)
( UNKNOWN ) An unrecognized combination of control values
( WRITE ) Data is written to memory
( WRITE RMW ) Write to memory during read-modify-write cycle
( BREAKPOINT ACK n )
( INT ACK LEVEL: n )
( INTERNAL REG ACCESS )
1
1
A19-A16 indicates type 0000, n is break number for a READ
A19-A16 indicates type 11 11, n is level number for a READ
1
A19-A16 indicates type 0011; this occurs at low power
standby mode or a base address register access for a
WRITE
( FLUSH )
1
Pipeline flush; occurs when the processor branches to
nonsequential address
TMS 261 68360 Microprocessor Support Instruction Manual
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Acquiring and Viewing Disassembled Data
T able 2–3: Cycle type definitions (cont.)
Cycle type Definition
( EXTENSION )
1
Computed cycle types.
Figure 2–1 shows an example of the Hardware display.
1
Extension fetched from program space
1 2 3 4
Sample Address Data Mnemonic Timestamp
-------------------------------------------------------------------------------------T 0 00084CE6------4E7A--MOVEC-VBR,D0-----------------------(S)------------------
1 00084CEA 08012440 MOVEA.L D0,A2 (S) 280 ns
2 00084CEC 257C0008 MOVE.L #00084E08,(00A8,A2) (S) 360 ns
3 00084CF0 4E0800A8 ( EXTENSION ) (S) 480 ns
4 00084CF4 227C0048 MOVEA.L #00480400,A1 (S) 360 ns
5 004000A8 00084E08 ( WRITE ) (S) 400 ns
6 00084CFA 0400228F MOVE.L A7,(A1) (S) 320 ns
7 00084CFC 48790008 PEA 00085C9A (S) 840 ns
8 00084D02 5C9A4879 PEA 00085CB2 (S) 360 ns
9 00480400 004FFFE8 ( WRITE ) (S) 360 ns
10 00084D04 00085CB2 ( EXTENSION ) (S) 320 ns
11 004FFFE4 00085C9A ( WRITE ) (S) 400 ns
12 00084D08 48790008 PEA 00085CB6 (S) 400 ns
13 004FFFE0 00085CB2 ( WRITE ) (S) 360 ns
14 00084D0E 5CB64879 PEA 00085CC8 (S) 320 ns
15 00084D10 00085CC8 ( EXTENSION ) (S) 360 ns
16 004FFFDC 00085CB6 ( WRITE ) (S) 360 ns
17 00084D14 48790008 PEA 00085D14 (S) 400 ns
18 004FFFD8 00085CC8 ( WRITE ) (S) 360 ns
19 00084D1A 5D140240 ANDI.W #0000,D0 (S) 320 ns
20 00084D1E 0000303C MOVE.W #0001,D0 (S) 360 ns
21 004FFFD4 00085D14 ( WRITE ) (S) 360 ns
5
2–8
Figure 2–1: Hardware display format
1
Sample Column. Lists the memory locations for the acquired data.
2
Address Group. Lists data from channels connected to the 68360 address
bus.
3
Data Group. Lists data from channels connected to the 68360 data bus.
4
Mnemonics Column. Lists the disassembled instructions and cycle types.
5
Timestamp. Lists the timestamp values when a timestamp selection is made.
Information on basic operations describes how you can select a timestamp.
TMS 261 68360 Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
Software Display Format
Control Flow Display
Format
The Software display format shows only the first fetch of executed instructions.
Read extensions will be used to disassemble the instruction, but will not be
displayed as a separate cycle in the Software display format. Data reads and
writes are not displayed.
The Software display format also shows the following cycles:
H Reset cycle
H Halt cycle
H Bus Error cycle
H Special cycles: Breakpoint Ack, Int Ack, Internal Reg Access, Reset Vector
H Reads from the vector table that appear due to servicing exceptions or traps
H Illegal instructions
H ( UNKNOWN ) cycle types; the disassembler does not recognize the Control
group value
The Control Flow display format shows only the first fetch of instructions that
change the flow of control.
The Control Flow display format also shows the following cycles:
H Reset cycle
H Halt cycle
H Bus Error cycle
H Special cycles: Breakpoint Ack, Int Ack, Internal Reg Access
H Reset vector
H Reads from the vector table that appear due to servicing exceptions
H Illegal instructions
H ( UNKNOWN ) cycle types; the disassembler does not recognize the Control
group value
Instructions that generate a change in the flow of control in the 68360
microprocessor are as follows:
Bcc (conditional branches) RTD
BGND DIVSL RTE
BKPT DIVU RTR
BRA DIVUL RTS
BSR JMP STOP
TMS 261 68360 Microprocessor Support Instruction Manual
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Acquiring and Viewing Disassembled Data
CHK JSR TRAP
CHK2 LPSTOP TRAPcc
DBcc (test condition, decrement, and branch) TRAPV
DIVS RESET
Subroutine Display
Format
The Subroutine display format shows only the first fetch of subroutine call and
return instructions. It will display conditional subroutine calls if they are
considered to be taken.
The Subroutine display format also shows the following cycles:
H Reset Cycle
H Halt Cycle
H Bus Error Cycle
H Special cycles: Breakpoint Ack, Int Ack, Internal Reg Access
H Reset Vector
H Reads from the vector table that appear due to servicing exceptions
H Illegal instructions
H ( UNKNOWN ) cycle types; the disassembler does not recognize the Control
group value
Instructions that generate a subroutine call or a return in the 68360 microprocessor are as follows:
BGND DIVS LPSTOP RTS
BKPT DIVSL RESET STOP
BSR DIVU RTD TRAP
CHK DIVUL RTE TRAPcc
CHK2 JSR RTR TRAPV
Changing How Data is Displayed
There are common fields and features that allow you to further modify displayed
data to suit your needs. You can make common and optional display selections in
the Disassembly property page (the Disassembly Format Definition overlay).
You can make selections unique to the 68360 support to do the following tasks:
H Change how data is displayed across all display formats
H Change the interpretation of disassembled cycles
2–10
TMS 261 68360 Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
Optional Display
Selections
You can make optional selections for disassembled
common selections (described in the information on basic operations), you can
change the displayed data in the following ways:
H Choose to acquire A27-A0 or A31-A0 signals on the address bus.
H Specify the bus width when the DSACK signals are generated internally.
H Choose to display invalid bytes as dashes.
H Specify the starting address of the vector table.
H Specify the size of the vector table.
The 68360 microprocessor support product has five additional fields: Address
Bus Width, Internal Bus Width of the DSACK Signals, Dash Invalid Bytes,
Vector Base Register, and Vector Table Size. These fields appear in the area
indicated in the basic operations user manual.
Address Bus Width. The address bus of the 68360 microprocessor can be 28- or
32-bits wide, inclusive. You should select the bus width that matches the width of
the address bus in your SUT in the Address Lines A0 thru field. The choices
are A27-A0 or A31-A0.
data. In addition to the
The disassembler ignores upper address bits that fall outside the selected range
and displays them as 0.
If you create a symbol table for the Address group, be sure that the number of
bits in the symbol table matches the bus width for the Address group.
Internal Bus Width of the DSACK Signals. The 68360 microprocessor allows
8-, 16-, and 32-bit wide data transfers. The DSACK signals, which indicate the
valid bytes on the bus, are not always asserted.
For cycles when the DSACK signals are asserted, the disassembler uses the
binary value on the DSACK signals for displaying the valid bytes and dashing
invalid bytes (unless the field for dashing bytes is disabled).
For nonfetch Show cycles, the disassembler always displays 32 bits.
For cycles when the DSACK signals are not asserted, the disassembler uses the
selection in the Int. DSACKs Bus Width field to determine the DSACK bus
width. When Best Guess is selected, the disassembler will try to determine if the
data transfer was 8-, 16-, or 32-bits wide by looking at the surrounding fetches.
Data will be disassembled accordingly. This selection can be changed to an 8-bit,
16-bit, or 32-bit bus width.
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Acquiring and Viewing Disassembled Data
Dash Invalid Bytes. The disassembler uses the DSACK signals to determine
which bytes are valid for data transfers. When you select Yes in the Dash Invalid
Bytes field, the disassembler displays dashes for invalid bytes.
Vector Base Register. The disassembler uses the vector base register (VBR) value
(the base of the interrupt table) to compute the name of the interrupt or to
determine if a conditional interrupt occurred. You can enter the VBR value, the
starting address of the vector table, in the Vector Base Register field.
The disassembler ignores upper address bits that fall outside the selected range in
the Address Lines A0 thru field.
A0 of the VBR must be set to 0.
The reset vector information must be located from address 0x0 to 0x7. It does not
matter what the VBR is set to; the disassembler will always display the reset
vector at 0 (0x00000000).
Vector Table Size. The disassembler uses the vector table size to compute the
name of the interrupt whenever an exception occurs. The default vector table size
is 400. Enter any value between 8 and 400. The value must be divisible by four.
Marking Cycles
The disassembler has a Mark Opcode function that allows you to change the
interpretation of a cycle type. Using this function, you can select a cycle and
change it to one of the following cycle types:
H Opcode (the first word of an instruction)
H Extension (a subsequent word of an instruction)
H Flush (an opcode or extension that is fetched but not executed)
H Anything (any valid opcode, extension or flush)
Mark selections are as follows:
Opcode Anything
Opcode Opcode
Opcode Flush
Flush Flush
Flush Opcode
Extension Extension
Extension Opcode
Extension Flush
Undo marks on this cycle
2–12
Information on basic operations contains more details on marking cycles and
how to view the file.
TMS 261 68360 Microprocessor Support Instruction Manual
Viewing an Example of Disassembled Data
A demonstration system file (or demonstration reference memory) is provided so
you can see an example of how your 68360 microprocessor bus cycles and
instruction mnemonics look when they are disassembled. Viewing the system file
is not a requirement for preparing the module for use and you can view it without
connecting the logic analyzer to your SUT.
Acquiring and Viewing Disassembled Data
TMS 261 68360 Microprocessor Support Instruction Manual
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Acquiring and Viewing Disassembled Data
2–14
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
Specifications
This chapter contains the following information:
H Probe adapter description
H Specification tables
H Dimensions of the probe adapter
H Channel assignment tables
H Description of how the module acquires 68360 signals
H List of other accessible microprocessor signals and extra probe channels
Probe Adapter Description
The probe adapter is nonintrusive hardware that allows the logic analyzer to
acquire data from a microprocessor in its own operating environment with little
effect, if any, on that system. Information on basic operations contains a figure
showing the logic analyzer connected to a typical probe adapter. Refer to that
figure while reading the following description.
Configuration
The probe adapter consists of a circuit board and a socket for a 68360
microprocessor. The probe adapter connects to the microprocessor in the SUT.
Signals from the microprocessor-based system flow from the probe adapter to the
channel groups and through the probe signal leads to the module.
Circuitry on the probe adapter can be powered from either the SUT or an external
power source. Refer to Applying and Removing Power in the Getting Started
chapter on page 1–20 for information on using an external power source.
The probe adapter accommodates the Motorola 68360 microprocessor in a
241-pin PGA package. The low-profile probe adapter is designed to be used with
the 192-Channel High Density Probe. The conventional probe adapter was
available in earlier versions of the product.
There are many jumpers on the probe adapter. Table 3–1 shows a summary of the
jumpers, jumper positions, and functions for the low-profile. and conventional
probe adapters.
TMS 261 68360 Microprocessor Support Instruction Manual
3–1
Specifications
T able 3–1: Jumper positions and functions
Jumper
(low-profile
probe adapter)
J1120 J1260 Selectable If the SUT uses dynamic memory controlled by the microprocessor, place the
J1200 J1210 RAS
J1205 J1255 68360 Use when acquiring standard 68360 signals (such as AS* and DS*). This is
J1520 Not Present CLK01 Use when CLK01 is enabled in the CLKOCR register.
J1540 J1630 WE0 Use when microprocessor is configured to use WE3–WE0 signals. The logic
J1545 J1635 WE1 Use when microprocessor is configured to use WE3–WE0 signals. The logic
J1550 J1640 WE2 Use when microprocessor is configured to use WE3–WE0 signals. The logic
J1555 J1645 WE3 Use when microprocessor is configured to use WE3–WE0 signals. The logic
J1560 J1290 EXT PWR Use when the probe adapter is powered by an alternate power supply.
1
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.
Jumper
(conventional
probe adapter)
Position Function
jumper in the position corresponding to the memory size used (128, 256, or
512 Kbytes, or 1, 2, 4, 8, 16, or 32 Mbytes). If the SUT does not use dynamic
memory , place the jumper in any position. You can also place the jumper in
any position if the RAS/Trans jumper (J1200) is in the Trans position (Pins 2,
3).
1
Trans Use if the SUT does not use dynamic memory or if you want to acquire data
68040 Use when acquiring 68040-type signals (such as TS* and TA*).
EXT AL Use when EXTAL is driven with the system frequency.
A28 Use when microprocessor is configured to use A31–A28 address signals.
A29 Use when microprocessor is configured to use A31–A28 address signals.
A30 Use when microprocessor is configured to use A31–A28 address signals.
A31 Use when microprocessor is configured to use A31–A28 address signals.
SUT PWR Use when the probe adapter is powered by the SUT. This is the default
Use if the SUT uses dynamic memory. Place the jumper in this position to
rearrange the upper and lower bits of the Address group for disassembly.
using transitional clocking (asynchronous). This is the default jumper setting.
the default jumper setting.
analyzer reads these signals as lows. This is the default position.
The logic analyzer reads the WE3–WE0 signals as highs.
analyzer reads these signals as lows. This is the default position.
The logic analyzer reads the WE3–WE0 signals as highs.
analyzer reads these signals as lows. This is the default position.
The logic analyzer reads the WE3–WE0 signals as highs.
analyzer reads these signals as lows. This is the default position.
The logic analyzer reads the WE3–WE0 signals as highs.
jumper setting.
3–2
TMS 261 68360 Microprocessor Support Instruction Manual
Figure 3–1 shows the locations of the jumpers and switches on the probe
adapters. Refer to Table 3–1 for descriptions of each jumper.
Low-profile probe adapter Conventional probe adapter
Specifications
J1120
J1205
J1520
J1200
S1140
J1545
J1555
J1540
J1550
J1560
J1210
J1630
J1635
S1230
J1255 J1290
J1645
J1260
J1640
Figure 3–1: Jumper and switch locations on the probe adapters
The CS/RAS Signal Selection switch block (S1140 on the low-profile probe
adapter or S1230 on the conventional probe adapter) has a switch for each RAS
switch that the SUT might use. For each RAS signal used, close the corresponding switch on the switch block. If the SUT does not use dynamic memory, open
all of the switches.
If you do not know which RAS lines are used by the SUT, open all of the
switches and place the RAS/Trans jumper in the Trans position.
Table 3–2 shows the switch numbers printed on the switch block and the CS or
RAS signal that connects to each switch.
TMS 261 68360 Microprocessor Support Instruction Manual
3–3
Specifications
Specifications
T able 3–2: 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*
These specifications are for a probe adapter connected between a compatible
Tektronix logic analyzer and a SUT. Table 3–3 shows the electrical requirements
for the low-profile probe adapter the SUT must produce for the support to
acquire correct data.
In Table 3–3, for the 102/136-channel module, one podlet load is 20 kW in
parallel with 2 pF. For the 96-channel module, one podlet load is 100 kW in
parallel with 10 pF.
T able 3–3: Electrical specifications: Low-profile probe adapter
Characteristics Requirements
Adapter DC power requirements
Voltage 4.75-5.25 VDC
Current (power supplied by SUT) I Maximum (calculated) 1.4 A
I Typical (measured) 1.1 A
Power supply requirements
Voltage 90-265 VAC
Current 1.1 A maximum at 100 VAC
Frequency 47-63 Hz
Power 25 W maximum
SUT clock
Clock rate Maximum. 33 MHz
Tested 25 MHz
Minimum setup time required
D0 – D31 8 ns worst case; 3 ns typical
3–4
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
T able 3–3: Electrical specifications: Low-profile probe adapter (cont.)
Characteristics Requirements
All other signals 5 ns
Minimum hold time required
IFETCH*, DSACK0–1*, AVEC* 8 ns
All other signals 1 ns
Without probe adapter
Minimum setup time required, all signals 5 ns
Minimum hold time required, all signalst 0 ns
Table 3–4 lists the typical SUT loading you can expect when you use the
low-profile probe adapter.
T able 3–4: Typical SUT signal loading: Low-profile probe adapter
Characteristics AC load DC load
A0–A14 11–15 pF 74FCT162501
A15, A20–A25 13–17 pF 20L8-10
A16–A19, A26, A27, BG*, BGACK* 13–17 pF 22V10-10
A28 (J1540 in WE0 position) 13 pF 74FCT162244ET
A28 (J1540 in A28 position) 15 pF 22V10-10
A29 (J1545 in WE1 position) 17 pF 74FCT162244ET
A29 (J1545 in A29 position) 19 pF 22V10-10
A30 (J1550 in WE2 position) 13 pF 74FCT162244ET
A30 (J1550 in A30 position) 21 pF 22V10-10
A31 (J1555 in WE3 position) 15 pF 74FCT162244ET
A31 (J1555 in A31 position) 15 pF 22V10-10
BCLRO*, PRTY3 9–11 pF 16V8–7
CAS0*–CAS3* 16–19 pF 20L8–5
DSACK1* 26 pF 20L8–5
AS* 23 pF 20L8–5
CLK01, EXTAL 4–16 pF
CS0*–CS7* 5–19 pF
RMC* 26 pF 16V8-7
FREEZE 31 pF 16V8-7
DS* 12 pF 16V8-7
1
2
20L8–5
74F30
TMS 261 68360 Microprocessor Support Instruction Manual
3–5
Specifications
T able 3–4: Typical SUT signal loading: Low-profile probe adapter (cont.)
Characteristics DC loadAC load
RESETH* 22 pF 16V8-7
Remaining Signals 8–15 pF 74FCT162244ET
1
Loading varies with position of J1520 (CLK01/EXTAL jumper)
2
Loading varies with positions of S1230 (CAS/RAS selection switch)
Table 3–5 shows the electrical requirements for the conventional probe adapter.
T able 3–5: Electrical specifications: Conventional probe adapter
Characteristics Requirements
Adapter DC Power Requirements
Voltage 4.75-5.25 VDC
Current (Power Supplied by SUT) I maximum (calculated) 1.3 A
I typical (measured)1.0 A
Power supply requirements
Voltage 90-265 VAC
Current 1.1 A maximum at 100 VAC
Frequency 47-63 Hz
Power 25 W maximum
SUT Clock
Clock Rate Min. DC
Max. 33 MHz
Tested 25 MHz
With Probe Adapter
Minimum Setup Time Required
D0 – D31 7 ns worst case; 3 ns typical
All Other Signals 4 ns
Minimum Hold Time Required
IFETCH*, DSACK0–1*, AVEC* 7 ns
All Other Signals 0 ns
Without Probe Adapter
Minimum Setup Time Required, All Signals 5 ns
Minimum Hold Time Required, All Signals 0 ns
3–6
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
Table 3–6 lists the typical SUT loading you can expect when you use the
conventional probe adapter. In Table 3–6, for themodule, one podlet load is
100 kW in parallel with 10 pF.
T able 3–6: Typical SUT signal loading: Conventional probe adapter
Characteristics AC Load DC Load
A0–A14 15 pF 74FCT
A15, A20–A25 15 pF 20L8–10
A16–A19, A26–A31, BG*, BGACK* 15 pF 22V10–10
BCLRO*, PRTY3 17 pF 16V4–15
CAS0–CAS3*, DSACK1*, AS*, EXTAL 20 pF 16L8–5
CS0*–CS7* 74F30 in parallel
with 10K to V
RMC*, FREEZE, DS*, RESETH* 20 pF + 1 podlet 1 podlet in parallel
with 16V4
cc
All Other Signals 20 pF + 1 podlet 1 podlet
Table 3–7 shows the environmental specifications.
T able 3–7: Environmental specifications*
Characteristic Description
Temperature
Maximum operating
Minimum operating 0° C (+32° F)
Non-operating –55° C to +75° C (–67° to +167° F)
Humidity 10 to 95% relative humidity
Altitude
Operating 4.5 km (15,000 ft) maximum
Non-operating 15 km (50,000 ft) maximum
Electrostatic immunity The probe adapter is static sensitive
* Designed to meet Tektronix standard 062-2847-00 class 5.
[
Not to exceed 68360 microprocessor thermal considerations. Forced air cooling might
be required across the CPU.
+50° C (+122° F)[
TMS 261 68360 Microprocessor Support Instruction Manual
3–7
Specifications
Table 3–8 shows the certifications and compliances that apply to the probe
adapter.
T able 3–8: Certifications and compliances
EC Compliance There are no current European Directives that apply to this product.
Figure 3–2 shows the dimensions of the probe adapter. The figure also shows the
minimum vertical clearance of the high-density probe cable.
56 mm
(2.22 in)
47 mm
(1.85 in)
120 mm
(4.75 in)
Figure 3–2: Dimensions of the low-profile probe adapter
89 mm
(3.50 in)
Pin B1
25.4 mm
(1.00 in)
7 mm (.26 in)
3–8
Figure 3–3 shows the placement of tie-down holes on the probe adapter. If you
purchase a converter clip (PGA-to-QFP) from ITT Pomona (part number 5968),
you can use screws to secure the clip and probe adapter to the microprocessor in
your system. The dimension of the holes is 0.110/0.116 inch.
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
48 mm
(1.88 in)
Pin B1
43 mm
(1.71 in)
4 mm (.16 in)
45.2 mm
(1.78 in)
44.9 mm
(1.77 in)
3.5 mm (0.14 in)
Figure 3–3: Tie-down hole placement on the low-profile probe adapter
6 mm
(.23 in)
8 mm
(.33 in)
Figure 3–4 shows the dimensions of the conventional probe adapter. The basic
operations user manual shows the vertical clearance of the clock and channel
probes when connected to a probe adapter under Requirements and Restrictions
in the Getting Started chapter.
TMS 261 68360 Microprocessor Support Instruction Manual
3–9
Specifications
108 mm
(4.27 in)
25 mm
(1.00 in)
Channel Assignments
42 mm
(1.67 in)
Pin 1A
102 mm
(4.00 in)
Figure 3–4: Dimensions of the conventional probe adapter
Channel assignments shown in Table 3–9 through Table 3–14 use the following
conventions:
H All signals are required by the support unless indicated otherwise.
H Channels are shown starting with the most significant bit (MSB) descending
to the least significant bit (LSB).
H Channel group assignments are for all modules unless otherwise noted.
H An asterisk following a signal name indicates an active low signal.
H An equals sign (=) following a signal name indicates that it is double probed.
Table 3–9 shows the probe section and channel assignments for the Address
group and the microprocessor signal to which each channel connects. By default,
this channel group is displayed in hexadecimal.
3–10
TMS 261 68360 Microprocessor Support Instruction Manual
T able 3–9: Address group channel assignments
Bit
order
31 A3:7 A31
30 A3:6 A30
29 A3:5 A29
28 A3:4 A28
27 A3:3 A27
26 A3:2 A26
25 A3:1 A25
24 A3:0 A24
23 A2:7 A23
22 A2:6 A22
21 A2:5 A21
20 A2:4 A20
19 A2:3 A19
18 A2:2 A18
17 A2:1 A17
16 A2:0 A16
15 A1:7 A15
14 A1:6 A14
13 A1:5 A13
12 A1:4 A12
11 A1:3 A11
10 A1:2 A10
9 A1:1 A9
8 A1:0 A8
7 A0:7 A7
6 A0:6 A6
5 A0:5 A5
4 A0:4 A4
3 A0:3 A3
2 A0:2 A2
1 A0:1 A1
0 A0:0 A0
Section:channel 68360 signal name
Specifications
Table 3–10 shows the probe section and channel assignments for the Data group
and the microprocessor signal to which each channel connects. By default, this
channel group is displayed in hexadecimal.
TMS 261 68360 Microprocessor Support Instruction Manual
3–11
Specifications
T able 3–10: Data group channel assignments
Bit
order
31 D3:7 D31
30 D3:6 D30
29 D3:5 D29
28 D3:4 D28
27 D3:3 D27
26 D3:2 D26
25 D3:1 D25
24 D3:0 D24
23 D2:7 D23
22 D2:6 D22
21 D2:5 D21
20 D2:4 D20
19 D2:3 D19
18 D2:2 D18
17 D2:1 D17
16 D2:0 D16
15 D1:7 D15
14 D1:6 D14
13 D1:5 D13
12 D1:4 D12
11 D1:3 D11
10 D1:2 D10
9 D1:1 D9
8 D1:0 D8
7 D0:7 D7
6 D0:6 D6
5 D0:5 D5
4 D0:4 D4
3 D0:3 D3
2 D0:2 D2
1 D0:1 D1
0 D0:0 D0
Section:channel 68360 signal name
3–12
Table 3–11 shows the probe section and channel assignments for the Control
group and the microprocessor signal to which each channel connects. By default,
this channel group is displayed symbolically.
TMS 261 68360 Microprocessor Support Instruction Manual
T able 3–11: Control group channel assignments
Specifications
Bit
order
18 C2:3 RESETH* same
17 C1:7 FREEZE same
16 C1:5 none REFRESH
15 C2:2 TA* TA_D*
14 C2:6 BG* BG_B*
13 C2:5 BGACK* BGACK_B*
12 C0:3 BERR* same
11 C0:7 HALT* same
10 C2:7 RMC* same
9 C0:0 R_W* same
8 C1:3 AS* AS_B*
7 C2:1 DS* DS_D*
6 C1:0 IFETCH* same
5 C0:2 CONFIG2 CONFIG2 (at reset)
4 C0:6 CONFIG1 CONFIG1 (at reset)
3 C1:2 CONFIG0 CONFIG0 (at reset)
2 C1:6 16MB* PORT32 (at reset)
1 C2:0 none S68040
0 C0:4 FC3 same
Section:channel 68360 signal name
Logic analyzer
signal name
Table 3–12 shows the probe section and channel assignments for the DataSize
group and the microprocessor signal to which each channel connects. By default,
this channel group is displayed in symbolically.
T able 3–12: DataSize group channel assignments
Bit
order
6 C3:6 FC2
5 C3:2 FC1
4 C3:7 FC0
3 C0:5 DSACK*_TA*
2 C0:1 DSACK0*_TBI
1 C3:4 SIZ1
0 C3:0 SIZ0
Section:channel 68360 signal name
TMS 261 68360 Microprocessor Support Instruction Manual
3–13
Specifications
Table 3–13 shows the probe section and channel assignments for the Misc group
and the microprocessor signal to which each channel connects. By default, this
channel group is not visible.
T able 3–13: Misc group channel assignments
Bit
order
5 C3:5
4 C3:1
3 C3:3
2 C2:4
1 C1:1
0 C1:4
[ Signal not required for disassembly.
Section:channel 68360 signal name
WE3*[
WE2*[
WE1*[
WE0*[
AVEC*_IACK5[
EXTAL[ SYSCLK_B[
Logic analyzer
signal name
same
same
same
same
same
Table 3–14 shows the probe section and channel assignments for the clock probes
(not part of any group) and the 68360 signal to which each channel connects.
T able 3–14: Clock channel assignments
Logic analyzer
Section: channel 68360 signal name
CK:0 AS* (held high in
68040 mode)
CK:1 none REFRESH (CAS be-
CK:2 none ALT_D (derived signal
CK:3 EXTAL SYSCLK_040*
1
Channel is double probed.
signal name
AS_B*1
fore RAS cycle)
– Config lines with BG*
& BGACK*)
1
3–14
These channels are used only to clock in data; they are not acquired or displayed.
To acquire data from any of the signals shown in Table 3–14, you must connect
another channel probe to the signal, a technique called double probing.
TMS 261 68360 Microprocessor Support Instruction Manual
How Data is Acquired
Specifications
This part of this chapter explains how the module acquires 68360 signals using
the TMS 261 software and probe adapter. This part also provides additional
information on microprocessor signals accessible on or not accessible on the
probe adapter, and on extra probe channels available for you to use for additional
connections.
Custom Clocking
A special clocking program is loaded to the module every time you load the
68360 support. This special clocking is called Custom.
With Custom clocking, the module logs in signals from multiple groups of
channels at different times as they become valid on the 68360 bus. The module
then sends all the logged-in signals to the trigger machine and to the memory of
the module for storage.
In Custom clocking, the module clocking state machine (CSM) generates one
master sample for each microprocessor bus cycle, no matter how many clock
cycles are contained in the bus cycle.
Figure 3–5 shows the sample points and the master sample point for 68360 bus
timing. Sample point 1 includes lower address signals latched on probe
(RAS_CAS). Sample point 2 includes IFETCH*, SYSCLK_B, FC3, and R_W*.
Sample point 3 includes all Address, Data and remaining control signals.
Figure 3–6 shows the sample points for 68040 microcontroller bus timing.
TMS 261 68360 Microprocessor Support Instruction Manual
3–15
Specifications
CLK_040*
Address
lines
AS*
Data
S0 S1 S2 S3 S4 S5 S0
Master sample
Sample point 1:
Lower Address lines
latch on probe
(RAS_CAS only).
Sample point 2:
92A96:
IFETCH*
SYSCLK_B
FC3
R_W*
Sample point 3:
All Address, Data &
all other assigned
control signals.
point
Figure 3–5: 68360 bus timing
C1 C2 CW C3
CLK_040*
TA*
Figure 3–6: 68040 bus timing
Clocking Options
32GPX:
IFETCH*
AVEC*
Config 0
AS_B*
Master sample
point
All signals sampled
& logged In
The clocking algorithm for the 68360 microprocessor support has the following
variations: Probe Interface Type With Probe Adapter, Probe Interface Type
Without Probe Adapter, Alternate Bus Master Cycles Excluded, Alternate Bus
Master Cycles Included, Refresh Cycles Excluded, and Refresh Cycles Included.
3–16
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
Probe Interface T ype. You can acquire data with or without using a probe adapter.
Refer to the guidelines under Probe Interface Type on page 2–2 when acquiring
data without a 68360 probe adapter.
Alternate Bus Master Cycles. An alternate bus master cycle is defined as the
68360 giving up the bus to an alternate device (a DMA device or another
microprocessor). These types of cycles are acquired when you select Included.
The default selection is Excluded.
Refresh Cycles. A refresh cycle is defined as CAS before RAS when using
dynamic memory. These types of cycles are acquired when you select Included.
The default selection is Excluded.
NOTE. The RAS switches must be set correctly in order to detect Refresh cycles.
Alternate Microprocessor Connections
You can connect to microprocessor signals that are not required by the support so
that you can do more advanced timing analysis. These signals might or might not
be accessible on the probe adapter board. The following paragraphs and tables
list signals that are or are not accessible on the probe adapter board.
For a list of signals required or not required for disassembly, refer to the channel
assignment tables beginning on page 3–10. Remember that these channels are
already included in a channel group. If you do connect these channels to other
signals, you should set up another channel group for them.
Signals On the Probe
Adapter
The probe adapter board contains pins for microprocessor signals that are not
acquired by the TMS 261 application. You can connect extra podlets to these
pins, because they can be useful for general purpose analysis.
Table 3–15 shows the pin strip names and component designations (for example,
J1180) for these miscellaneous 68360 signal connections. Table 3–16 through
Table 3–23 show the pin number and signal name assignments for each pin strip.
TMS 261 68360 Microprocessor Support Instruction Manual
3–17
Specifications
T able 3–15: Pin strip names used for alternate connections
Component designation
Pin strip name Low-profile probe adapter Conventional probe adapter
AUX0 J1 180 J1110
AUX J1140 J1185
TIMERS part of J1490 part of J1790
PORTA part of J1490 part of J1790
PORTB part of J1490 part of J1790
PORTC part of J1490 part of J1790
JTAG J1185 J1215
BDM J1160 J1285
Figure 3–7 shows the locations of the miscellaneous pin strips you can use to
make alternate connections.
J1180J1140 J1160 J1185
Pin 1
Pin 2
J1490
J1110
J1215
Conventional probe adapterLow-profile probe adapter
J1185
J1285
J1790
Pin 1
Pin 2
Figure 3–7: Miscellaneous pin strips for alternate connections
3–18
TMS 261 68360 Microprocessor Support Instruction Manual
Table 3–16 shows the signals available on the AUX0 pin strip.
T able 3–16: AUX0 pin strip signals
Specifications
J1180 pin
(low-profile
probe adapter)
1 1 GND
2 2 AUX0:0 none
3 3 GND
4 4 AUX0:1 BKPT*
5 5 GND
6 6 AUX0:2 RESETS*
7 7 GND
8 8 AUX0:3 OE*
9 9 GND
10 10 AUX0:4 PRTY0
11 11 GND
12 12 AUX0:5 PRTY1
13 13 GND
14 14 AUX0:6 PRTY2
15 15 GND
J1110 pin
(conventional
probe adapter)
Channel Signal name
16 16 AUX0:7 PRTY3
TMS 261 68360 Microprocessor Support Instruction Manual
3–19
Specifications
Table 3–17 shows the signals available on the AUX pin strip.
T able 3–17: AUX pin strip signals
J1140 pin
(low-profile
probe adapter)
1 49 GND
2 50 AUX:0 CS0*_RAS0*
3 51 GND
4 52 AUX:1 CS1*_RAS1*
5 53 GND
6 54 AUX:2 CS2*_RAS2*
7 55 GND
8 56 AUX:3 CS3*_RAS3*
9 57 GND
10 58 AUX:4 CS4*_RAS4*
11 59 GND
12 60 AUX:5 CS5*_RAS5*
13 61 GND
14 62 AUX:6 CS6*_RAS6*
15 63 GND
J1185 pin
(conventional
probe adapter)
Channel Signal name
3–20
16 64 AUX:7 CS7*_RAS7*_IACK7
Table 3–18 shows the signals available on the JTAG pin strip.
T able 3–18: JTAG pin strip signals
Pin number Signal name
1 TCK
2 TMS
3 TDI
4 TDO
5 TRST*
6 TRIS*
TMS 261 68360 Microprocessor Support Instruction Manual
Table 3–19 shows the signals available on the BDM pin strip.
T able 3–19: BDM pin strip signals
Pin number Signal name
1 DS*
2 BERR*
3 GND
4 BKPT*
5 GND
6 FREEZE
7 RESETH*
8 IFETCH
9 VDD
10 IPIPEO
Specifications
Table 3–20 shows the signals available on the Timers pin strip.
T able 3–20: Timers pin strip signals
Pin number Signal name
13 GND
14 CLK1/PA8
15 CLK2/PA9
16 CLK3/PA10
17 CLK4/PA1 1
18 CLK5/PA12
19 CLK6/PA13
20 CLK7/PA14
21 CLK8/PA15
22 GND
TMS 261 68360 Microprocessor Support Instruction Manual
3–21
Specifications
Table 3–21 shows the signals available on the PortA pin strip.
T able 3–21: PortA pin strip signals
Pin number Signal name
1 GND
2 RXD1/PA0
3 TXD1/PA1
4 RXD2/PA2
5 TXD2/PA3
6 RXD3/PA4
7 TXD3/PA5
8 RXD4/PA6
9 TXD4/PA7
10 GND
11 GND
12 GND
3–22
TMS 261 68360 Microprocessor Support Instruction Manual
Table 3–22 shows the signals available on the PortB pin strip.
T able 3–22: PortB pin strip signals
Pin number Signal name
23 GND
24 GND
25 GND
26 PB0
27 PB1
28 PB2
29 PB3
30 PB4
31 PB5
32 PB6
33 PB7
34 PB8
35 PB9
36 PB10
37 PB11
38 PB12
39 PB13
40 PB14
41 PB15
42 PB16
43 PB17
44 GND
Specifications
TMS 261 68360 Microprocessor Support Instruction Manual
3–23
Specifications
Table 3–23 shows the signals available on the PortC pin strip.
T able 3–23: PortC pin strip signals
Pin number Signal name
45 PC0
46 PC1
47 PC2
48 PC3
49 PC4
50 PC5
51 PC6
52 PC7
53 PC8
54 PC9
55 PC10
56 PC11
57 GND
58 GND
3–24
TMS 261 68360 Microprocessor Support Instruction Manual
Specifications
Signals Not On the Probe
Adapter
The following is a list of microprocessor signals that are not accessible on either
probe adapter or on the LAHDP2 probe.
H CLK02
H MODCK0
H MODCK1
H CLK01
H XTAL
H IPIPE1*
H CAS0–3* (IACK 1, 2, 3, 6)
H IRQ2,3,5,7*
H IRQ6*
H IRQ4*
H IRQ1*
H PERR*
Extra Channels
H BCLR0*
H BR*
H XFC
Table 3–24 lists extra sections and channels that are left after you have connected
all the probes used by the support. You can use these extra channels to make
alternate SUT connections.
T able 3–24: Extra module sections and channels
Module Section: channels
102-channels Qual:1, Qual:0
136-channels E3:7-0, E2:7-0, E1:7-0, E0:7-0, Qual:3-0
96-channels None
These channels are not defined in any channel group and data acquired from
them is not displayed. To display data, you will need to define a channel group.
TMS 261 68360 Microprocessor Support Instruction Manual
3–25
Specifications
3–26
TMS 261 68360 Microprocessor Support Instruction Manual
WARNING
The following servicing instructions are for use only by qualified personnel. To
avoid injury, do not perform any servicing other than that stated in the operating
instructions unless you are qualified to do so. Refer to all Safety Summaries
before performing any service.
Maintenance
Maintenance
This chapter contains information on the following topics:
H Probe adapter circuit description
H How to replace a fuse
Probe Adapter Circuit Description
The following paragraphs provide descriptions of the PAL/gates on the probe
adapter.
H MUX1–4. In CPU32+ mode, these PALs determine which lower address
needs to be multiplexed onto a higher address line for RAS–CAS cycles. On
cycles that are not RAS–CAS, or in Slave mode, the high order address line
passes straight through.
H ALT–MUX. The MUX part of the PAL does the same job as the MUX1–4
PALs. The ALT part of the PAL determines when a cycle belongs to an
alternate master and uses the output signal (ALT_D) for clocking only. To do
this, it uses the BG* and BGACK* signals, and the BROUT signal from the
LATCH PAL.
H LATCH. This PAL latches the Config and Port Size lines on RESET going
away. These lines are then sent as data lines for the disassembler, and
generate the BROUT signal for the ALT–MUX PAL.
The LATCH PAL also looks at the J68040 jumper and the Config lines to
determine if 68040 type signals are being used. It places this information on
the S68040 line to the RAS PAL.
H CONFIG. The 74F148 takes the memory space jumpers and turns them into
three bits of gray code.
H RAS. This PAL determines CAS before RAS cycles and outputs a RE-
FRESH signal. The AMS must ensure that only one REFRESH cycle is
stored for each RAS cycle.
The PAL buffers the clock delay to the clock podlet. This will add from 1 to
5 ns of delay with a typical delay of 3 ns. This helps data setup time
problems. When working with 68040 timing signals, the clock will be
inverted when the S68040 signal for the LATCH PAL is high.
The AS* signal is held high when in 68040 signal mode and is buffered the
rest of the time.
TMS 261 68360 Microprocessor Support Instruction Manual
4–1
Maintenance
The DS* signal is held high when in 68040 signal mode and is buffered the
rest of the time.
The TA_D* signal is held high in non 68040 timing modes and is buffered
when in 68040 timing modes.
H RAS switches. Set these switches to indicate which RAS lines are being
used. If you do not know the RAS lines or if they do not know the memory
size when using dynamic memories, then you should move the RAS–CAS/
Transparent jumper to the Transparent (Trans) position. This will turn off the
multiplexing of address lines and send the address lines directly to the logic
analyzer. Most observed microprocessors have the total address on the bus at
the end of the cycle when the transparent position has no negative impact. If
the RAS switches cannot be set up correctly, then no refresh cycles will be
captured.
The transparent position (Trans) should also be used in timing mode.
Replacing Signal Leads
Information on basic operations describes how to replace signal leads (individual
channel and clock probes).
Replacing Protective Sockets
Information on basic operations describes how to replace protective sockets.
4–2
TMS 261 68360 Microprocessor Support Instruction Manual
Replacing the Fuse
Low-p
ile probe adapte
Maintenance
If the fuse on the 68360 probe adapter opens (burns out), you can replace it with
a 5 A, 125 V fuse. Figure 4–1 shows the location of the fuse on the probe adapter.
rof
r Conventional probe adapter
Figure 4–1: Location of the fuse
Fuse
Fuse
TMS 261 68360 Microprocessor Support Instruction Manual
4–3
Maintenance
4–4
TMS 261 68360 Microprocessor Support Instruction Manual
Replaceable Electrical Parts
Replaceable Electrical Parts
This chapter contains a list of the replaceable electrical components for the
TMS 261 68360 microprocessor support. Use this list to identify and
order replacement parts.
Parts Ordering Information
Replacement parts are available through your local Tektronix field office or
representative.
Changes to Tektronix products are sometimes made to accommodate improved
components as they become available and to give you the benefit of the latest
improvements. Therefore, when ordering parts, it is important to include the
following information in your order:
H Part number
H Instrument type or model number
H Instrument serial number
H Instrument modification number, if applicable
If you order a part that has been replaced with a different or improved part, your
local Tektronix field office or representative will contact you concerning any
change in part number.
Change information, if any, is located at the rear of this manual.
Using the Replaceable Electrical Parts List
The tabular information in the Replaceable Electrical Parts List is arranged for
quick retrieval. Understanding the structure and features of the list will help you
find all of the information you need for ordering replacement parts. The
following table describes each column of the electrical parts list.
TMS 261 68360 Microprocessor Support Instruction Manual
5–1
Replaceable Electrical Parts
Parts list column descriptions
Column Column name Description
1 Component number The component number appears on diagrams and circuit board illustrations, located in the diagrams
section. Assembly numbers are clearly marked on each diagram and circuit board illustration in the
Diagrams section, and on the mechanical exploded views in the Replaceable Mechanical Parts list
section. The component number is obtained by adding the assembly number prefix to the circuit
number (see Component Number illustration following this table).
The electrical parts list is arranged by assemblies in numerical sequence (A1, with its subassemblies
and parts, precedes A2, with its subassemblies and parts).
Chassis-mounted parts have no assembly number prefix, and they are located at the end of the
electrical parts list.
2 Tektronix part number Use this part number when ordering replacement parts from Tektronix.
3 and 4 Serial number Column three indicates the serial number at which the part was first effective. Column four indicates
the serial number at which the part was discontinued. No entry indicates the part is good for all serial
numbers.
5 Name & description An item name is separated from the description by a colon (:). Because of space limitations, an item
name may sometimes appear as incomplete. Use the U.S. Federal Catalog handbook H6-1 for
further item name identification.
6 Mfr. code This indicates the code number of the actual manufacturer of the part.
7 Mfr. part number This indicates the actual manufacturer’s or vendor’s part number.
Abbreviations
Component Number
List of Assemblies
Chassis Parts
Mfr. Code to Manufacturer
Cross Index
Abbreviations conform to American National Standard ANSI Y1.1–1972.
Component number
A23A2R1234 A23 R1234
Assembly number Circuit number
Read: Resistor 1234 (of Subassembly 2) of Assembly 23
A2
Subassembly number
(optional)
A list of assemblies is located at the beginning of the electrical parts list. The
assemblies are listed in numerical order. When a part’s complete component
number is known, this list will identify the assembly in which the part is located.
Chassis-mounted parts and cable assemblies are located at the end of the
Replaceable Electrical Parts List.
The table titled Manufacturers Cross Index shows codes, names, and addresses of
manufacturers or vendors of components listed in the parts list.
5–2
TMS 261 68360 Microprocessor Support Instruction Manual
Replaceable Electrical Parts
Manufacturers cross index
Mfr.
code
00779 AMP INC. CUSTOMER SERVICE DEPT
01295 TEXAS INSTRUMENTS INC SEMICONDUCTOR GROUP
04222 AVX/KYOCERA PO BOX 867 MYRTLE BEACH, SC 29577
04713 MOTOROLA INC SEMICONDUCTOR PRODUCTS SECTOR
09969 DALE ELECTRONIC COMPONENTS EAST HWY 50
0LXM2 LZR ELECTRONICS INC 8051 CESSNA AVENUE GAITHERSBURG, MD 20879
14310 AULT INC 7300 BOONE AVE NOR TH
26742 METHODE ELECTRONICS INC BACKPLAIN DIVISION
34335 ADVANCED MICRO DEVICES INC ONE AMD PLACE
50139 ALLEN–BRADLEY COMPANY ELECTRONIC COMPONENTS DIVISION
50434 HEWLETT PACKARD 370 W TRIMBLE ROAD SAN JOSE, CA 95131–1008
55420 DYSAN INTERNATIONAL 218 RAILROAD AVE MILPITAS, CA 95035
61772 INTEGRATED DEVICE TECHNOLOGY 2975 STENDER WAY SANTA CLARA, CA 95054
61857 SAN–O INDUSTRIAL CORP 91–3 COLIN DRIVE HOLBROOK, NY 11741
63058 MCKENZIE TECHNOLOGY 910 PAGE AVE FREMONT, CA 945387340
65786 CYPRESS SEMICONDUCTOR CORP 3901 N FIRST ST SAN JOSE, CA 95134–1506
80009 TEKTRONIX INC 14150 SW KARL BRAUN DR
85480 BRADY USA NAMEPLA TE DIVISION
S3109 FELLER U.S. CORPORATION 72 VERONICA AVE
TK0875 MATSUO ELECTRONICS 2134 MAIN STREET
Manufacturer Address City , state, zip code
HARRISBURG, PA 17105–3608
PO BOX 3608
DALLAS, TX 75272–5303
13500 N CENTRAL EXPRESSWA Y
PO BOX 655303
PHOENIX, AZ 85008–4229
5005 E MCDOWELL ROAD
YANKTON, SD 57078
P.O. BOX 180
MINNEAPOLIS, MN 55428
BROOKLINE PARK
CHICAGO, IL 60656–4548
7444 WEST WILSON AVE
SUNNYVALE, CA 94088–3453
PO BOX 3453
EL PASO, TX 79936
1414 ALLEN BRADLEY DRIVE
BEAVERT ON, OR 97077–0001
PO BOX 500
HILLSBOROUGH, NC 27278
P O BOX 571
346 ELIZABETH BRADY RD
SOMERSET, NJ 08873
UNIT #4
HUNTINGTON BEACH, CA 92648
SUITE 200
TMS 261 68360 Microprocessor Support Instruction Manual
5–3
Replaceable Electrical Parts
Replaceable electrical parts list
Component
number
A02 671–3724–00 CIRCUIT BD ASSY:68360,PGA–241,SOCKETED,
A02C1220 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1300 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1310 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1320 290–5005–00 CAP ,FXD,TANT:47UF,10%,10V,5.8MM X 4.6MM,
A02C1325 290–5005–00 CAP ,FXD,TANT:47UF,10%,10V,5.8MM X 4.6MM,
A02C1345 283–5114–00 CAP ,FXD,CERAMIC:MLC,0.1UF,10%,50V ,X7R,1206,SMD 04222 12065C104KAT
A02C1365 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1445 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1455 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1580 290–5005–00 CAP ,FXD,TANT:47UF,10%,10V,5.8MM X 4.6MM,
A02C1600 283–5114–00 CAP ,FXD,CERAMIC:MLC,0.1UF,10%,50V ,X7R,1206,SMD 04222 12065C104KAT
A02C1630 290–5005–00 CAP ,FXD,TANT:47UF,10%,10V,5.8MM X 4.6MM,
A02C1633 283–5114–00 CAP ,FXD,CERAMIC:MLC,0.1UF,10%,50V ,X7R,1206,SMD 04222 12065C104KAT
A02C1650 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1660 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C1700 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2180 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2290 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2350 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2390 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2490 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2590 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
Tektronix
part number
Serial no.
effective
Serial no.
discont’d
Name & description Mfr. code Mfr. part number
32/92DM94
5846,SMD
5846,SMD
5846,SMD
5846,SMD
80009 671–3724–00
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
TK0875 267M–1002–476–KR–
533
TK0875 267M–1002–476–KR–
533
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
TK0875 267M–1002–476–KR–
533
(1A OR 3A)
TK0875 267M–1002–476–KR–
533
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
5–4
TMS 261 68360 Microprocessor Support Instruction Manual
Replaceable electrical parts list (cont.)
Replaceable Electrical Parts
Component
number
A02C2640 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2650 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02C2670 283–5114–00 CAP,FXD,CERAMIC:MLC,0.1UF,10%,50V,X7R,1206,SMD 04222 12065C104KAT
A02CR1575 152–5045–00 DIODE,SIG:SCHTKY,20V,1.2PF,24 OHM 50434 HSMS–2810–T31
A02CR1620 152–5045–00 DIODE,SIG:SCHTKY,20V,1.2PF,24 OHM 50434 HSMS–2810–T31
A02CR1630 152–5045–00 DIODE,SIG:SCHTKY,20V,1.2PF,24 OHM 50434 HSMS–2810–T31
A02CR1635 152–5045–00 DIODE,SIG:SCHTKY,20V,1.2PF,24 OHM 50434 HSMS–2810–T31
A02F1670 159–0059–00 FUSE,WIRE LEAD:5A,125V 61857 SPI–5A
A02J1120 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1140 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1160 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1180 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1185 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1200 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1205 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1490 131–5267–00 CONN,HDR:PCB,MALE,STR,2 X 40,0.1 CTR 00779 104326–4
A02J1520 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1540 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1545 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1550 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1555 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1560 131–4530–00 CONN,HDR:PCB,MALE,STR,1 X 3,0.1 CTR 00779 104344–1
A02J1680 131–5527–00 JACK,POWER DC:PCB,MALE,RTANG,2MM PIN,11MM
A02J1700 131–5947–00 CONN,BOX:PCB,MICRO–STRIP ,FEMALE,STR,100
Tektronix
part number
Serial no.
effective
Serial no.
discont’d
Mfr. part numberMfr. codeName & description
(1A OR 3A)
(1A OR 3A)
(1A OR 3A)
0LXM2 DJ005A
H(0.433) X 3.5MM(0.137) TAIL,9MM(0.354) W,TIN,W/SWI
00779 121289–7
POS,0.05 CTR
A02P1120 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
CTR,0.63 H,BLK,W/HANDLE,JUMPER
A02P1200 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
CTR,0.63 H,BLK,W/HANDLE,JUMPER
A02P1205 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
CTR,0.63 H,BLK,W/HANDLE,JUMPER
A02P1520 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
CTR,0.63 H,BLK,W/HANDLE,JUMPER
A02P1540 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
CTR,0.63 H,BLK,W/HANDLE,JUMPER
TMS 261 68360 Microprocessor Support Instruction Manual
26742 9618–302–50
26742 9618–302–50
26742 9618–302–50
26742 9618–302–50
26742 9618–302–50
5–5
Replaceable Electrical Parts
Replaceable electrical parts list (cont.)
Component
number
A02P1545 131–4356–00 CONN,SHUNT:SHUNT/SHORTING,FEMALE,1 X 2,0.1
A02P1550 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
A02P1555 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
A02P1560 131–4356–00 CONN,SHUNT:SHUNT/SHOR TING,FEMALE,1 X 2,0.1
A02R1100 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1105 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1110 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1115 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1215 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1216 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1218 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1220 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1410 321–5051–00 RES,FXD:THICK FILM,0 OHM,1%,0.125W 09969 CRCW1206 JUMPER
A02R1415 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1420 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R1535 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1640 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1650 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R1655 321–5030–00 RES,FXD:THICK FILM,10.0K OHM,1%,0.125W 50139 BCK1002FT
A02R2180 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2181 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2185 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2186 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2190 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2195 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2197 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2285 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2360 321–5002–00 RES,FXD:THICK FILM,15 OHM,1%,0.125W 50139 BCD15R0FT
A02R2380 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2385 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2387 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
A02R2388 321–5026–00 RES,FXD:THICK FILM,4.75K OHM,1%,0.125W 50139 BCK4751FT
Tektronix
part number
Serial no.
effective
Serial no.
discont’d
Mfr. part numberMfr. codeName & description
26742 9618–302–50
CTR,0.63 H,BLK,W/HANDLE,JUMPER
26742 9618–302–50
CTR,0.63 H,BLK,W/HANDLE,JUMPER
26742 9618–302–50
CTR,0.63 H,BLK,W/HANDLE,JUMPER
26742 9618–302–50
CTR,0.63 H,BLK,W/HANDLE,JUMPER
A02S1140 260–1721–00 SWITCH,ROCKER:8,SPST,125MA,30VDC 00779 5–435166–3
A02U1120 156–5500–00 IC,DIGITAL:FTTL,GA TES,8–INPUT NAND 01295 SN74F30D
5–6
TMS 261 68360 Microprocessor Support Instruction Manual
Replaceable electrical parts list (cont.)
Replaceable Electrical Parts
Component
number
A02U1310 160–9952–00 IC,DIGITAL:STTL,PLD,PAL,20L8,210MA,10NS 80009 160–9952–00
A02U1420 156–6514–01 IC,DIGITAL:FCTCMOS,TRANSCEIVER,18–BIT
A02U1510 163–0593–00 IC,DIGITAL:STTL,PLD,PAL,20L8,5NS,210MA 80009 163–0593–00
A02U1610 160–9951–01 IC,DIGITAL:CMOS,PLD,OTP,22V10,10NS,71MHZ,180MA 80009 160–9951–00
A02U1640 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U1650 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U1660 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U2180 156–5253–00 IC,DIGITAL:FTTL,MUX/ENCODER,8–T O–3 LINE
A02U2350 160–9949–00 IC,DIGITAL:CMOS,PLD,EEPLD,16V8,7.5NS,130MA 80009 160–9949–00
A02U2390 160–9950–01 IC,DIGITAL:CMOS,PLD,OTP,22V10,10NS,71MHZ,180MA 80009 160–9950–00
A02U2490 156–6514–01 IC,DIGITAL:FCTCMOS,TRANSCEIVER,18–BIT
A02U2590 160–9953–00 IC,DIGITAL:STTL,PLD,PAL,20L8,210MA,10NS 80009 160–9953–00
A02U2645 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U2660 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U2670 156–7112–00 IC DIGITIAL:FCTCMOS,BUFFER,16–BIT, RESISTOR
A02U2690 160–9954–00 IC,DIGITAL:STTL,PLD,PAL,20L8,210MA,10NS 80009 160–9954–00
A02W1700 174–3418–00 CA ASSY,RF:TLC,MICRO–STRIP,TLC,50 OHM 00779 1–340014–0
Tektronix
part number
Serial no.
effective
Serial no.
discont’d
REGISTERED,RESISTOR TERMINA TED OUTPUTS
TERMINATED OUTPUTS,3–STA TE
TERMINATED OUTPUTS,3–STA TE
TERMINATED OUTPUTS,3–STA TE
PRIORITY
REGISTERED,RESISTOR TERMINA TED OUTPUTS
TERMINATED OUTPUTS,3–STA TE
TERMINATED OUTPUTS,3–STA TE
TERMINATED OUTPUTS,3–STA TE
Mfr. part numberMfr. codeName & description
61772 IDT74FCT162501ATP
V
80009 156–7112–00
80009 156–7112–00
80009 156–7112–00
04713 MC74F148D
61772 IDT74FCT162501ATP
V
80009 156–7112–00
80009 156–7112–00
80009 156–7112–00
TMS 261 68360 Microprocessor Support Instruction Manual
5–7
Replaceable Electrical Parts
5–8
TMS 261 68360 Microprocessor Support Instruction Manual
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