Tektronix TMS202 Instruction Manual
Instruction Manual
TMS 202
68020 & 68EC020 Microprocessor Support
070-9820-00
There are no current European directives that
apply to this product. This product provides
cable and test lead connections to a test object of
electronic measuring and test equipment.
Warning
The servicing instructions are for use by
qualified personnel only. To avoid personal
injury, do not perform any servicing unless you
are qualified to do so. Refer to all safety
summaries prior to performing service.
Copyright T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are
protected by United States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.
T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.
SOFTWARE WARRANTY
T ektronix warrants that the media on which this software product is furnished and the encoding of the programs on
the media will be free from defects in materials and workmanship for a period of three (3) months from the date of
shipment. If a medium or encoding proves defective during the warranty period, T ektronix will provide a
replacement in exchange for the defective medium. Except as to the media on which this software product is
furnished, this software product is provided “as is” without warranty of any kind, either express or implied.
T ektronix does not warrant that the functions contained in this software product will meet Customer’s
requirements or that the operation of the programs will be uninterrupted or error-free.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period. If T ektronix is unable to provide a replacement that is free from defects in materials and
workmanship within a reasonable time thereafter, Customer may terminate the license for this software product
and return this software product and any associated materials for credit or refund.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS
OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT IS
THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS
WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER
TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.
HARDWARE WARRANTY
T ektronix warrants that the products that it manufactures and sells will be free from defects in materials and
workmanship for a period of one (1) year from the date of shipment. If a product proves defective during this
warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor,
or will provide a replacement in exchange for the defective product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by T ektronix, with
shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a
location within the country in which the T ektronix service center is located. Customer shall be responsible for
paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than T ektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-T ektronix supplies; or d) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time
or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS
OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’
RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR
THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
Getting Started
Operating Basics
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface: Microprocessor Support Documentation ix. . . . . . . . . . . . . . . .
Manual Conventions ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logic Analyzer Documentation x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting T ektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Support Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logic Analyzer Software Compatibility 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logic Analyzer Configuration 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements and Restrictions 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the Probe Adapter 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting to a System Under T est 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PGA Probe Adapter 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CQFP Probe Adapter 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Without a Probe Adapter 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Setting Up the Support 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Group Definitions 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clocking Options 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Adapter T ype 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DMA Cycles 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cache & Queue Hits 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 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Flow Display Format 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subroutine Display Format 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing How Data is Displayed 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Display Selections 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marking Cycles 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Exception Vectors 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing an Example of Disassembled Data 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Adapter Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the Probe Adapter 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Assignments 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Data is Acquired 3–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
i
Table of Contents
Custom Clocking 3–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clocking Options 3–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternate Microprocessor Connections 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signals On the Probe Adapter 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extra Channels 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Probe Adapter Circuit Description 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Signal Leads 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Protective Sockets 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
ii
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
List of Figures
Table of Contents
Figure 1–1: Jumper location on the 68020 PGA probe adapter 1–4. . . . .
Figure 1–2: Jumper location on the 68EC020 PGA probe adapter 1–4. .
Figure 1–3: Jumper location on the 68020 CQFP probe adapter 1–5. . . .
Figure 1–4: Placing a microprocessor into a PGA probe adapter 1–7. . .
Figure 1–5: Connecting probes to a PGA probe adapter 1–8. . . . . . . . . .
Figure 1–6: Placing a PGA probe adapter onto the SUT 1–9. . . . . . . . . .
Figure 1–7: Connecting probes to a CQFP probe adapter 1–10. . . . . . . . .
Figure 1–8: Placing a CQFP probe adapter onto the SUT 1–11. . . . . . . . .
Figure 2–1: Hardware display format 2–8. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: Jumper location on the 68020 PGA probe adapter 3–3. . . . .
Figure 3–2: Jumper location on the 68EC020 PGA probe adapter 3–3. .
Figure 3–3: Jumper location on the 68020 CQFP probe adapter 3–4. . . .
Figure 3–4: Minimum clearance of the 68020 PGA probe adapter 3–7. .
Figure 3–5: Minimum clearance of the 68EC020 PGA probe adapter 3–8
Figure 3–6: Minimum clearance of the 68020 CQFP probe adapter 3–9.
Figure 3–7: 68020 and 68EC020 bus timing 3–18. . . . . . . . . . . . . . . . . . . . .
Figure 7: 68020 PGA Probe Adapter exploded view 6–5. . . . . . . . . . . . . .
Figure 8: 680EC20 PGA Probe Adapter exploded view 6–7. . . . . . . . . . .
Figure 9: 68020 CQFP Probe Adapter exploded view 6–9. . . . . . . . . . . . .
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
iii
Table of Contents
List of Tables
Table 1–1: Product support 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: 68020 and 68EC020 signal connections
for channel probes 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1–3: 68020 and 68EC020 signal connections for clock probes 1–14.
Table 2–1: Control group symbol table definitions 2–2. . . . . . . . . . . . . . .
Table 2–2: Intr group symbol table definitions 2–4. . . . . . . . . . . . . . . . . .
Table 2–3: Special characters in the display and their meaning 2–6. . . .
Table 2–4: Cycle type definitions 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2–5: Interrupt vectors 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–1: Jumper positions 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–2: Electrical specifications 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–3: Environmental specification 3–6. . . . . . . . . . . . . . . . . . . . . . . .
Table 3–4: Certifications and compliances 3–6. . . . . . . . . . . . . . . . . . . . . .
Table 3–5: Address group channel assignments (68020) 3–11. . . . . . . . . . .
Table 3–6: Address group channel assignments (68EC020) 3–12. . . . . . . .
Table 3–7: Data group channel assignments (68020 & 68EC020) 3–13. . .
Table 3–8: Control group channel assignments (68020) 3–14. . . . . . . . . . .
Table 3–9: Control group channel assignments (68EC020) 3–14. . . . . . . . .
Table 3–10: Intr group channel assignments 3–15. . . . . . . . . . . . . . . . . . .
Table 3–11: DataSize group channel assignments
(68020) & (68EC020) 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–12: Misc group channel assignments (68020) and (68EC020) 3–16
Table 3–13: Misc2 group channel assignments 3–16. . . . . . . . . . . . . . . . . .
Table 3–14: TMS 202 Clock channel assignments (68020) 3–16. . . . . . . . .
Table 3–15: Clock channel assignments (68EC020) 3–17. . . . . . . . . . . . . . .
Table 3–16: Extra module sections and channels 3–20. . . . . . . . . . . . . . . .
iv
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
To Avoid Fire or
Personal Injury
Connect and Disconnect Properly . Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and marking on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry .
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Symbols and Terms
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
T erms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
v
General Safety Summary
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
WARNING
High Voltage
Protective Ground
(Earth) T erminal
CAUTION
Refer to Manual
Double
Insulated
vi
TMS 202 68020 & 68EC020 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 202 68020 & 68EC020 Microprocessor Support Instruction Manual
vii
Service Safety Summary
viii
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Preface: Microprocessor Support Documentation
This instruction manual contains specific information about the TMS 202 68020
and 68EC020 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 202 68020 and 68EC020 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 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 can be replaced with 68020. This is the name
of the microprocessor in field selections and file names you must use to
operate the 68020 and 68EC020 support.
H The phrase “system under test (SUT)” refers to the microprocessor-based
system from which data will be acquired.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
ix
Preface: Microprocessor Support Documentation
H The phrase “logic analyzer” refers to the Tektronix logic analyzer for which
this product was purchased.
H The term “module” refers to a 102/136-channel or 96-channel module.
H 68020 refers to all supported variations of the 68020 and 68EC020 micropro-
cessor unless otherwise noted.
H A signal that is active low has a tilde (~) following its name.
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 user manual
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
x
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Getting Started
Getting Started
Support Description
This chapter provides information on the following topics:
H The TMS 202 68020 and 68EC020 microprocessor support
H Logic analyzer software compatibility
H Logic analyzer configuration
H Your 68020 and 68EC020 system requirements
H 68020 and 68EC020 support restrictions
H How to configure the probe adapter
H How to connect to the system under test (SUT)
The TMS 202 microprocessor support disassembles data from systems that are
based on the Motorola 68020 and 68EC020 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 202 microprocessor support.
Table 1–1 shows the microprocessors and packages from which the TMS 202
support can acquire and disassemble data.
T able 1–1: Product support
Microprocessor Package
68020 PGA
68EC020 PGA
68020 CQFP
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 MC68020 and 68EC020 Microprocessor
User’s Manual, (Motorola, MC68020UM/AD, Rev. 3, 1990).
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–1
Getting Started
Information on basic operations also contains a general description of supports.
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 68020 and 68EC020 support, the Tektronix logic analyzer must be
equipped with a 102/136-channel module, or a 96-channel module. The module
must be equipped with enough probes to acquire clock and channel data from
signals in your 68020 and 68EC020-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 68020 and 68EC020 support
requirements and restrictions.
System Clock Rate. The microprocessor support product supports the 68020 and
68EC020 microprocessor at speeds of up to 33 MHz
microprocessor at speeds of up to 25 MHz
Disabling the Instruction Cache. To disassemble acquired data, you must disable
the internal instruction cache. Disabling the cache makes all instruction
prefetches visible on the bus so that they can be acquired and disassembled.
Disassembling Storage-Qualified Data. The disassembler is designed to work with
available gaps in the acquisition data. Disassembly of storage-qualified data is
indeterminate and will likely be incorrect.
1
1
.
and the 68EC020
1–2
1
Specification at time of printing. Contact your logic analyzer sales representative for
current information on the fastest devices supported.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Configuring the Probe Adapter
Disabling the cache makes all instruction prefetches visible on the bus so they
can be acquired and disassembled. The probe adapter contains a jumper you can
use to disable the 68020 cache.
With the cache jumper in the NORM position, the SUT controls the cache and
the CDIS~ signal is not affected.
With the cache jumper in the DIS position, the CDIS~ signal connects to a
332 Ω pull-down resistor on the probe adapter, which disables the cache. For the
PGA probe adapters, you should also cut or remove pin T5 from the protective
socket on the underside of the probe adapter to prevent contention with the
driving signal. For a CQFP probe adapter, you should disable any devices on the
SUT that drive the CDIS~ signal to prevent contention with the driving signal.
Getting Started
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–3
Getting Started
Figure 1–1 shows the location of J210 on the 68020 PGA probe adapter.
J210
Figure 1–1: Jumper location on the 68020 PGA probe adapter
Figure 1–2 shows the location of J210 on the 68EC020 PGA probe adapter.
J210
1–4
Figure 1–2: Jumper location on the 68EC020 PGA probe adapter
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Getting Started
Figure 1–3 shows the location of J1150 on the 68020 CQFP probe adapter.
J1150
Figure 1–3: Jumper location on the 68020 CQFP probe adapter
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. Your 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.
PGA Probe Adapter
To connect the logic analyzer to a SUT using a PGA probe adapter, follow these
steps:
1. Turn off power to your SUT. It is not necessary to turn off power to the logic
analyzer.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–5
Getting Started
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.
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 1–4. 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 1–4.
1–6
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Foam
Getting Started
Microprocessor
Probe adapter
Figure 1–4: Placing a microprocessor into a PGA probe adapter
7. Connect the channel and clock probes to the probe adapter as shown in
Figure 1–5. 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 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–7
Getting Started
Channel probe
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 1–5: 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 1–6.
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.
1–8
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
SUT socket
Getting Started
CQFP Probe Adapter
Figure 1–6: Placing a PGA probe adapter onto the SUT
To connect the logic analyzer to a SUT using a CQFP probe adapter, follow these
steps:
1. Turn off power to your SUT. It is not necessary to turn off the logic analyzer.
CAUTION. Static discharge can damage the microprocessor, the probe adapter,
the probes, or the module. To prevent static damage, handle all the above only in
a static-free environment.
Always wear a grounding wrist strap or similar device while handling the
microprocessor and probe adapter.
2. To discharge your stored static electricity, touch the ground connector located
on the back of the logic analyzer. Then, touch any of the ground pins of the
probe adapter to discharge stored static electricity from the probe adapter.
3. Place the probe adapter onto the antistatic shipping foam to support the probe
as shown in Figure 1–7. This prevents the circuit board from flexing.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–9
Getting Started
4. Connect the channel and clock probes to the probe adapter as shown in
Figure 1–7. Match the channel groups and numbers on the probe labels to the
corresponding probe adapter pins. Match the ground pins on the probes to the
corresponding pins on the probe adapter.
Channel probe
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 1–7: Connecting probes to a CQFP probe adapter
Clock probe
Probe adapter
1–10
CAUTION. This JEDEC ( Quad Flat Pack) probe adapter has been equipped with
a clip that has been designed for tight tolerances.
The clip supports only Quad Flat Pack devices that conform to the JEDEC
M0-069 October 1990 specification. Attaching the clip to a device that does not
conform to this JEDEC standard can easily damage the clip’s connection pins
and/or the microprocessor, causing the probe adapter to malfunction.
Please contact your IC manufacturer to verify that the microprocessor you are
targeting conforms to the JEDEC specification.
For best performance and long probe life, exercise extreme care when connecting
the probe adapter to the microprocessor.
5. Place a little glue on each corner of the CQFP-to-PQFP converter.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Getting Started
6. Place the CQFP-to-PQFP converter over your CQFP microprocessor as
shown in Figure 1–8.
NOTE. Do not allow the glue to touch the pins of your microprocessor.
This might
interfere with the connection between the microprocessor and the probe adapter.
An open connection will cause errors.
7. Allow the glue to dry.
Figure 1–8: Placing a CQFP probe adapter onto the SUT
8. Line up the pin 1 indicator on CQFP clip on the probe adapter with the pin 1
indicator on the microprocessor.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Converter
Microprocessor
1–11
Getting Started
CAUTION. Failure to correctly place the probe adapter onto the microprocessor
might permanently damage all electrical components when power is applied.
Center the clip on the microprocessor and apply an equal downward force on all
four sides of the clip, slightly rocking the probe adapter in a clockwise circle.
Do not apply leverage to the probe adapter when installing or removing it.
9. Place the probe adapter onto the SUT as shown in Figure 1–8.
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 68020 and 68EC020 signals in the SUT using a test
clip, follow these steps:
1. Turn off power to your SUT. It is not necessary to turn off power to the logic
analyzer.
CAUTION. Static discharge can damage the microprocessor, the probes, or the
module. To prevent static damage, handle all of the above only in a static-free
environment.
Always wear a grounding wrist strap or similar device while handling the
microprocessor.
2. To discharge your stored static electricity, touch the ground connector located
on the back of the logic analyzer. If you are using a test clip, touch any of the
ground pins on the clip to discharge stored static electricity from it.
CAUTION. Failure to place the SUT on a horizontal surface before connecting the
test clip might permanently damage the pins on the microprocessor.
1–12
3. Place the SUT on a horizontal static-free surface.
4. Use Table 1–2 to connect the channel probes to 68020 and 68EC020 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.
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
T able 1–2: 68020 and 68EC020 signal connections for channel probes
Getting Started
68020 and 68EC020
Section:channel
A3:7 A31 D3:7 D31
A3:6 A30 D3:6 D30
A3:5 A29 D3:5 D29
A3:4 A28 D3:4 D28
A3:3 A27 D3:3 D27
A3:2 A26 D3:2 D26
A3:1 A25 D3:1 D25
A3:0 A24 D3:0 D24
A2:7 A23 D2:7 D23
A2:6 A22 D2:6 D22
A2:5 A21 D2:5 D21
A2:4 A20 D2:4 D20
A2:3 A19 D2:3 D19
A2:2 A18 D2:2 D18
A2:1 A17 D2:1 D17
A2:0 A16 D2:0 D16
signal
Section:channel
68020 and 68EC020
signal
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
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
1–13
Getting Started
T able 1–2: 68020 and 68EC020 signal connections for channel probes (cont.)
68020 and 68EC020
Section:channel
C3:7 R/W~ C2:7 FC2
C3:6 HALT~ C2:6 FC0
C3:5 BERR~ C2:5 RMC~
C3:4 DSACK1~ C2:4 CLK=*
C3:3 DSACK0~ C2:3 AS~
C3:2 SIZ1 C2:2 ECS_L~*
C3:1 SIZ0 C2:1
C3:0 FC1 C2:0 BGACK~, BG~
C1:7 Not connected C0:7 Not connected
C1:6 Not connected C0:6 BR~
C1:5 Not connected C0:5 BG~
C1:4 Not connected C0:4 OCS–L~
C1:3 DBEN~ C0:3 IPEND~
C1:2 AVEC~ C0:2 IPL2~
C1:1 CDIS~ C0:1 IPL0~
C1:0 DS~ C0:0 IPL1~
signal
Section:channel
68020 and 68EC020
signal
RESET~
[
* Signal not required for disassembly.
Table 1–3 shows the clock probes and the 68020 and 68EC020 signal to which
they must connect for disassembly to be correct.
T able 1–3: 68020 and 68EC020 signal connections for clock
probes
Section:channel 68020 and 68EC020 signal
CK:3 Not connected
CK:2 CLK~ (buffered, inverted), CLK (labeled CLK_B~)
CK:1 Not connected
CK:0 Not connected
5. Align pin 1 or A1 of your test clip with the corresponding pin 1 or A1 of the
68020 and 68EC020 microprocessor in your SUT and attach the clip to the
microprocessor.
1–14
TMS 202 68020 & 68EC020 Microprocessor Support Instruction Manual
Loading...