Instruction Manual
TMS 105
386SX Microprocessor Support
070-9808-00
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 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PQFP Probe Adapter 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Without a Probe Adapter 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Up the Support 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Group Definitions 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clocking Options 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subroutine Display Format 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing How Data is Displayed 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Display Selections 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Marking Cycles 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying Exception Vectors 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing an Example of Disassembled Data 2–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Probe Adapter Description 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Assignments 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Data is Acquired 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Custom Clocking 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clocking Options 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternate Microprocessor Connections 3–1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signals On the Probe Adapter 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TMS 105 386SX Microprocessor Support Instruction Manual
i
Table of Contents
Extra Channels 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Maintenance 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Adapter Circuit Description 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Signal Leads 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Protective Sockets 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Electrical Parts
Replaceable Electrical Parts 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Electrical Parts List 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Mechanical Parts
Replaceable Mechanical Parts 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering Information 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Mechanical Parts List 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Index
ii
TMS 105 386SX Microprocessor Support Instruction Manual
List of Figures
Table of Contents
Figure 1–1: Connecting probes to a PQFP probe adapter 1–4. . . . . . . . .
Figure 1–2: Placing a PQFP probe adapter onto the SUT 1–5. . . . . . . . .
Figure 2–1: Hardware display format 2–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3–1: Dimensions of the probe adapter 3–4. . . . . . . . . . . . . . . . . . . .
Figure 3–2: 386SX bus timing (pipelined and nonpipelined) 3–10. . . . . . .
TMS 105 386SX Microprocessor Support Instruction Manual
iii
Table of Contents
List of Tables
Table 1–1: Supported microprocessors 1–1. . . . . . . . . . . . . . . . . . . . . . . .
Table 1–2: 386SX signal connections for channel probes 1–6. . . . . . . . . .
Table 1–3: 386SX signal connections for clock probes 1–8. . . . . . . . . . . . .
Table 2–1: Control group symbol table definitions 2–2. . . . . . . . . . . . . . .
Table 2–2: Meaning of special characters in the display 2–6. . . . . . . . . .
Table 2–3: Cycle type definitions 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2–4: Exception vectors for Real Addressing mode 2–10. . . . . . . . . .
Table 2–5: Exception vectors for Protected Addressing mode 2–11. . . . . .
Table 3–1: Electrical specifications 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3–2: Environmental specifications* 3–3. . . . . . . . . . . . . . . . . . . . . .
Table 3–3: Certifications and compliances 3–3. . . . . . . . . . . . . . . . . . . . . .
Table 3–4: Address group channel assignments 3–5. . . . . . . . . . . . . . . . . .
Table 3–5: Data group channel assignments 3–6. . . . . . . . . . . . . . . . . . . . .
Table 3–6: Control group channel assignments 3–6. . . . . . . . . . . . . . . . . .
Table 3–7: Intr group channel assignments 3–7. . . . . . . . . . . . . . . . . . . . .
Table 3–8: Copr group channel assignments 3–7. . . . . . . . . . . . . . . . . . . .
Table 3–9: Misc group channel assignments 3–8. . . . . . . . . . . . . . . . . . . .
Table 3–10: Clock channel assignments 3–8. . . . . . . . . . . . . . . . . . . . . . . .
Table 3–11: Extra module sections and channels 3–12. . . . . . . . . . . . . . . .
iv
TMS 105 386SX 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.
TMS 105 386SX Microprocessor Support Instruction Manual
v
General Safety Summary
Symbols and Terms
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.
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 105 386SX 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 105 386SX Microprocessor Support Instruction Manual
vii
Service Safety Summary
viii
TMS 105 386SX Microprocessor Support Instruction Manual
Preface: Microprocessor Support Documentation
This instruction manual contains specific information about the TMS 105 386SX
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 105 386SX 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 support packages 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 386SXA. This is the name of
the microprocessor in field selections and file names you must use to operate
the 386SX support.
H The term system under test (SUT) refers to the microprocessor-based system
from which data will be acquired.
TMS 105 386SX 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 386SXA refers to all supported variations of the 386SX and 80387 micropro-
cessors unless otherwise noted.
H A tilde (~) 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
x
TMS 105 386SX 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 105 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)
The TMS 105 microprocessor support package disassembles data from systems
that are based on the Intel or AMD 386SX 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 105 microprocessor support.
Table 1–1 shows the microprocessors and packages from which the TMS 105
support can acquire and disassemble data.
T able 1–1: Supported microprocessors
Name Package
Intel/Amd 386SX PQFP
Amd A386SXL PQFP
Intel 80387 PQFP
A complete list of standard and optional accessories is provided at the end of the
parts list in the Replaceable Mechanical Parts chapter.
TMS 105 386SX Microprocessor Support Instruction Manual
1–1
Getting Started
To use this support efficiently, you need to have the items listed in the information on basic operations as well as the following manuals:
H The 386SX Microprocessor User’s Manual, Intel, 1994
H The 386SX Programmer’s Reference Manual, Intel, 1994
H The 16/32-Bit Embedded Processors Manual, Intel, Inc.
H The 387SX Hardware Reference Manual, Intel, Inc.
H The A386SX Microprocessor User’s Manual, AMD, Corp.
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 386SXA 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 386SX-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 386SX support requirements
and restrictions.
System Clock Rate. The TMS 105 support can acquire data from the 386SX
microprocessor at speeds of up to 25 MHz
1
.
1–2
1
Specification at time of printing. Contact your Tektronix sales representative for
current information on the fastest devices supported.
TMS 105 386SX Microprocessor Support Instruction Manual
Configuring the Probe Adapter
The probe adapter does not require any configuration.
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.
Getting Started
PQFP Probe Adapter
To connect the logic analyzer to a SUT using a PQFP 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 Figure 1–1. This prevents the circuit board from flexing.
4. Connect the channel and clock probes to the probe adapter as shown in
Figure 1–1. 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 105 386SX Microprocessor Support Instruction Manual
1–3
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 1–1: Connecting probes to a PQFP probe adapter
Clock probe
Probe adapter
CAUTION. This JEDEC
PQFP (Plastic Quad Flat Pack) probe adapter has been
equipped with a clip that has been designed for tight tolerances.
The clip supports only Plastic 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 to the microprocessor.
5. Line up the pin 1 indicator on the microprocessor with the pin 1 indicator on
the target head of the circuit board.
1–4
TMS 105 386SX Microprocessor Support Instruction Manual
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.
6. Place the probe adapter onto the SUT as shown in Figure 1–2.
Figure 1–2: Placing a PQFP probe adapter onto the SUT
CAUTION. The probe adapter board might slip off or slip to one side of the
microprocessor because of the extra weight of the probes. This can damage the
microprocessor
and the SUT. To prevent this from occurring, stabilize the probe
adapter by placing a non-conductive object (such as foam) between the probe
adapter and the SUT.
TMS 105 386SX Microprocessor Support Instruction Manual
Microprocessor
1–5
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 386SX 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.
3. Use Table 1–2 to connect the channel probes to 386SX signal pins on the test
clip or in the SUT.
Use leadsets to connect at least one ground lead from each channel probe and
the ground lead from each clock probe to ground pins on your test clip.
T able 1–2: 386SX signal connections for channel probes
Section:channel 386SX signal Section:channel 386SX signal
A2:7 A23 A3:7 PEREQ*
A2:6 A22 A3:6 ERROR~*
A2:5 A21 A3:5 BUSY~*
A2:4 A20 A3:4 Not connected
A2:3 A19 A3:3 LOCK~*
A2:2 A18 A3:2 W/R~*
A2:1 A17 A3:1 D/C~*
A2:0 A16 A3:0 M/IO~*
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 D11
A1:2 A10 D1:2 D10
1–6
TMS 105 386SX Microprocessor Support Instruction Manual
T able 1–2: 386SX signal connections for channel probes (cont.)
Section:channel 386SX signalSection:channel386SX signal
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
C3:6 Not connected C2:6 BHE~*
C3:5 Not connected C2:5 CLK*§
C3:4
C3:3
C3:2
C3:1
C3:0 HOLD* C2:0
* Signal not required for disassembly.
INTR_L*[
NA_L~*[
NMI_L*[
NA~*[
PIPE_D*}
C2:7
C2:4 RESET_L*
C2:3
C2:2 ADS~
C2:1
INTR[
NMI[
READY~[
HLDA*[
Getting Started
[ Signal not required for disassembly.
]
Denotes signal derived on the probe adapter.
w
CLK2 divided by two.
TMS 105 386SX Microprocessor Support Instruction Manual
1–7
Getting Started
Table 1–3 shows the clock probes and the 386SX signal to which they must
connect for disassembly to be correct.
T able 1–3: 386SX signal connections for clock probes
Section:channel 386SX signal
CK:3 PIPE_D
CK:2 CLK
CK:1 NA_L~
CK:0 RESET_L
* Denotes signals latched on the probe adapter.
[ Signal not required for disassembly.
4. Align pin 1 or A1 of your test clip with the corresponding pin 1 or A1 of the
386SX microprocessor in your SUT and attach the clip.
1–8
TMS 105 386SX 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 105 386SX 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 386SX support are Address, Data, Control, Intr (Interrupt), Copr
(Coprocessor), and Misc (Miscellaneous). If you want to know which signal is in
which group, refer to the channel assignment tables beginning on page 3–4.
The TMS 105 support offers a microprocessor-specific clocking mode for the
386SX microprocessor. This clocking mode is the default selection whenever you
load the 386SXA support.
A description of how cycles are sampled by the module using the support and
probe adapter is found in the Specifications chapter.
TMS 105 386SX Microprocessor Support Instruction Manual
2–1
Setting Up the Support
Symbols
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 option for the TMS 105 support is DMA Cycles. A DMA cycle is
defined as the cycle in which the 386SX microprocessor gives up the bus to an
alternate device (a DMA device or another microprocessor). These types of
cycles are acquired when you select Included.
The TMS 105 support supplies one symbol table file. The 386SXA_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
386SXA_Ctrl, the Control channel group symbol table.
T able 2–1: Control group symbol table definitions
Control group value
RESET_L LOCK~
BHE~ M/IO~
Symbol
MEM_READ
MEM_WRITE
I/O_READ
I/O_WRITE
MEM_RD/WR
I/O_RD/WR
READ
WRITE
INT ACK
HLDA D/C~
READY~ W/R~
Meaning
Non-opcode fetch locked memory read
Any locked memory write
Memory code read (Opcode Fetch)
Non-opcode fetch memory read cycle
Any memory write
Read from an I/O port
Write to an I/O port
Non-opcode fetch memory read or write
Read from or write to an I/O port
Any memory or I/O read cycle, except
Opcode Fetch or Interrupt Acknowledge
Any memory or I/O write cycle
Responding to Interrupt
2–2
TMS 105 386SX Microprocessor Support Instruction Manual
Setting Up the Support
T able 2–1: Control group symbol table definitions (cont.)
Control group value
RESET_L LOCK~
BHE~ M/IO~
Symbol Meaning
HAL T/SHUT
LOCKED
RESERVED*
DMA
HIGH_XFER
RESET
HLDA D/C~
READY~ W/R~
HAL T: Address=2; SHUTDOWN: Address=0
Inseparable back–to–back cycles
Reserved
Bus released to an Alternate Bus Master
Transfer on D15–D8
Latched RESET signal asserted
* Symbols used only for triggering; they are not displayed.
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.
TMS 105 386SX Microprocessor Support Instruction Manual
2–3
Setting Up the Support
2–4
TMS 105 386SX 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 386SXA 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 Problems 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 2–8.
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 105 386SX Microprocessor Support Instruction Manual
2–5
Acquiring and Viewing Disassembled Data
T able 2–2: Meaning of special characters in the display
Character or string displayed Meaning
**** Indicates there is insufficient data available for complete
# Indicates an immediate value
t Indicates the number shown is in decimal, such as #12t
(16) or (32) Indicates that the fetch is from a 16- or 32-bit code segment
* ILLEGAL INSTRUCTION * Decoded as an illegal instruction
The instruction was manually marked as a program fetch
disassembly of the instruction; the number of asterisks
indicates the width of the data that is unavailable. Each two
asterisks represent one byte.
size and disassembled accordingly
Hardware Display Format
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
( CO I/O RD ) A cycle reading data from an I/O port in the coprocessor
( CO I/O WR ) A cycle writing data to an I/O port in the coprocessor
( DMA CYCLE ) A direct memory access cycle
( EXTENSION ) A read cycle of either an extension long word or a word of an
instruction
( FLUSH ) Instruction flushed from the pipeline
( HALT ) Address = 2 ( Address bit 1 = 1)
( INT ACK ) An interrupt acknowledge cycle
( INVALID CYCLE ) An illegal cycle; an unrecognized combination of control group
values
( I/O READ ) A cycle reading data from an I/O port
2–6
( I/O WRITE ) A cycle writing data to an I/O port
( LOCKED MEM READ ) Any locked cycle during which data is read from memory except:
opcode fetch, extension, or interrupt acknowledge
( LOCKED MEM WRITE ) Any locked cycle during which data is written to memory
( MEM READ ) Any cycle during which data is read from memory except: opcode
fetch, extension, or interrupt acknowledge
TMS 105 386SX Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
T able 2–3: Cycle type definitions (cont.)
Cycle type Definition
( MEM WRITE ) Any cycle during which data is written to memory
( RESERVED ) Any cycle during which the control group bit pattern indicates
reserved
( RESET ) Latched reset signal asserted
( SHUTDOWN ) Shutdown Cycle; Address = 0
* Computed cycle types.
Figure 2–1 shows an example of the Hardware display.
1 2 3 4 5
Sample Address Data Mnemonic Timestamp
-------------------------------------------------------------------------------T 0 033510---061E--PUSH-DS--------------------------(32)------------------
033511 061E PUSH ES (32)
1 033512 A00F PUSH FS (32) 320 ns
2 033514 A80F PUSH GS (32) 300 ns
3 033500 0014 ( MEM WRITE ) 130 ns
4 0334FC 0014 ( MEM WRITE ) 310 ns
5 0334F8 0014 ( MEM WRITE ) 320 ns
6 033516 9AE8 CALLS 0335B5 (32) 500 ns
7 033518 0000 ( EXTENSION ) 310 ns
8 0334F4 0014 ( MEM WRITE ) 190 ns
9 03351A BE00 ( EXTENSION ) 500 ns
10 03351C 0000 ( FLUSH ) 310 ns
11 0334F0 051B ( MEM WRITE ) 120 ns
12 0334F2 0000 ( MEM WRITE ) 310 ns
13 0335B5 3321 XOR EAX,EAX (32) 510 ns
14 0335B7 33C0 XOR EBX,EBX (32) 310 ns
15 0335B9 33DB XOR ECX,ECX (32) 310 ns
16 0335BB 33C9 XOR EDX,EDX (32) 310 ns
17 0335BD 33D2 XOR EBP,EBP (32) 320 ns
18 0335BF 33ED XOR ESI,ESI (32) 310 ns
19 0335C1 33F6 XOR EDI,EDI (32) 310 ns
20 0335C3 C3FF RETS (32) 310 ns
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 386SX Address
bus.
3
Data Group. Lists data from channels connected to the 386SX Data bus.
TMS 105 386SX Microprocessor Support Instruction Manual
2–7
Acquiring and Viewing Disassembled Data
4
Mnemonic 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.
Software Display Format
Control Flow Display
Format
Subroutine Display
Format
The Software display format shows only the first fetch of executed instructions.
Flushed cycles and extensions are not shown, even though they are part of the
executed instruction. 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 Control Flow display format shows only the first fetch of instructions that
change the flow of control.
Instructions that generate a change in the flow of control in the 386SX
microprocessor are as follows:
BOUND JB/JNAE/JC JNB/JAE/JNC JNS
CALL JBE/JNA JNBE/JA JO
DIV JCXZ/JECXZ JNE/JNZ JP/JPE
IDIV JE/JZ JNL/JGE JS
INT JL/JNGE JNLE/JG LOOP
INTO JLE/JNG JNP/JPO LOOPNZ/LOOPNE
IRET JMP JNO LOOPZ/LOOPE
RET
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.
Instructions that generate a subroutine call or a return in the 386SX microprocessor are as follows:
BOUND DIV INT IRET
CALL IDIV INTO RET
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 386SX support to do the following tasks:
H Change how data is displayed across all display formats
2–8
TMS 105 386SX Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
H Change the interpretation of disassembled cycles
H Display exception vectors
There are no optional fields for this support package. Refer to the information on
basic operations for descriptions of common fields.
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 Specify the default code segment size.
H Choose an interrupt table.
H Specify the size of the interrupt table.
H Specify the starting address of the interrupt table.
The 386SX support has four additional fields: Code Segment Size, Interrupt
Table, Interrupt Table Address, and Interrupt Table Size. These fields appear in
the area indicated in the information on basic operations.
Code Segment Size. You can select the default code size: 32-bit or 16-bit. The
default code size is 16 bit.
Interrupt Table. You can specify if the interrupt table is Real, Virtual, or Protected.
(Selecting Virtual is equivalent to selecting Protected.) The default is Real.
Interrupt Table Address. You can specify the starting address of the interrupt table
in hexadecimal. The default starting address is 0x00000000.
data. In addition to the
Interrupt Table Size. You can specify the size of the interrupt table in hexadecimal.
The default size is 0x400.
Marking Cycles
TMS 105 386SX Microprocessor Support Instruction Manual
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)
2–9
Acquiring and Viewing Disassembled Data
Mark selections are as follows:
Any OPCODE
OPCODE Any
Ext Ext
Flush Flush
16Ćbit Default Segment Size
32Ćbit Default Segment Size
Undo marks on this cycle
You can also use the Mark Opcode function to specify the default segment size
mode (16-bit or 32-bit) for the cycle. The segment size selection changes the
cycle the cursor is on and the remaining cycles to the end of memory or to the
next mark.
Information on basic operations contains more details on marking cycles.
Displaying Exception
Vectors
The disassembler can display exception vectors. You can select to display the
interrupt vectors for Real, Virtual, or Protected modes in the Interrupt Table field.
(Selecting Virtual is equivalent to selecting Protected.)
You can relocate the table by entering the starting address in the Interrupt Table
Address field. The Interrupt Table Address field provides the disassembler with
the offset address; enter an eight-digit hexadecimal value corresponding to the
offset of the base address of the exception table. The Interrupt Table Size field
lets you specify a three-digit hexadecimal size for the table.
You can make these selections in the Disassembly property page (the Disassembly Format Definition overlay).
Table 2–4 lists the 386SX exception vectors for the Real Addressing mode.
T able 2–4: Exception vectors for Real Addressing mode
Exception
number
0 0000
1 0004
2 0008
3 000C
4 0010
5 0014
6 0018
7 001C
Location in IV* table
(in hexadecimal)
Displayed exception name
DIVIDE ERROR
DEBUG EXCEPTIONS
NMI INTERRUPT
BREAKPOINT INTERRUPT
INTO DETECTED OVERFLOW
BOUND RANGE EXCEEDED
INVALID OPCODE
COPROCESSOR NOT AVAILABLE
2–10
TMS 105 386SX Microprocessor Support Instruction Manual
Acquiring and Viewing Disassembled Data
T able 2–4: Exception vectors for Real Addressing mode (cont.)
Exception
number
8 0020
9-1 1 0024-002C
12 0030
13 0034
14-15 0038-003C
16 0040
17-31 0044-007C
32-255 0080-03FC
* IV means interrupt vector.
Location in IV* table
(in hexadecimal)
Displayed exception name
DOUBLE FAULT
RESERVED
STACK EXCEPTION
SEGMENT OVERRUN
RESERVED
COPROCESSOR ERROR
RESERVED
USER DEFINED
Table 2–5 lists the exception vectors for the Protected Addressing mode.
T able 2–5: Exception vectors for Protected Addressing mode
Exception
number
0 0000
1 0008
2 0010
3 0018
4 0020
5 0028
6 0030
7 0038
8 0040
9 0048
10 0050
11 0058
12 0060
13 0068
14 0070
15 0078
16 0080
17-31 0090-00F8
32-255 0100-07F8
* IDT means interrupt descriptor table.
Location in IDT*
(in hexadecimal)
Displayed exception name
DIVIDE ERROR
DEBUG EXCEPTIONS
NMI INTERRUPT
BREAKPOINT INTERRUPT
INTO DETECTED OVERFLOW
BOUND RANGE EXCEEDED
INVALID OPCODE
DEVICE NOT AVAILABLE
DOUBLE FAULT
RESERVED
INVALID TSS
SEGMENT NOT PRESENT
STACK EXCEPTION
GENERAL PROTECTION
PAGE FAULT
RESERVED
COPROCESSOR MODE
RESERVED
USER DEFINED
TMS 105 386SX Microprocessor Support Instruction Manual
2–11
Acquiring and Viewing Disassembled Data
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 386SX 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.
Information on basic operations describes how to view the file.
2–12
TMS 105 386SX 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 386SX 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 386SX
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.
All circuitry on the probe adapter is powered from the SUT.
The probe adapter accommodates the Intel 386SX microprocessor in a 100-pin
PQFP package.
The probe adapter does not require any configuration.
TMS 105 386SX Microprocessor Support Instruction Manual
3–1
Specifications
Specifications
These specifications are for a probe adapter connected between a compatible
Tektronix logic analyzer and a SUT. Table 3–1 shows the electrical requirements
the SUT must produce for the support to acquire correct data.
In Table 3–1, for the 102/136-channel module, one podlet load is 20 k in
parallel with 2 pF. For the 96-channel module, one podlet load is 100 k in
parallel with 10 pF.
T able 3–1: Electrical specifications
Characteristics Requirements
SUT DC power requirements
Voltage 4.75-5.25 VDC
Current I max (calculated) 590 mA
I typ (measured) 395 mA
SUT clock rate Max. 25 MHz
Minimum setup time required
All signals 4 ns
Minimum hold time required
NA~ 5.5 ns
All other signals 4 ns
Specification
Measured typical SUT signal loading AC load DC load
Address, Data, BLE~ 5 pF + 1 podlet 1 podlet
NMI, INTR, NA~ 14 pF + 1 podlet 16R8–5 in parallel with 1 podlet
3–2
CLK2 10 pF 16R8–5 clock
HLDA, ADS~, READY~ 9 pF + 1 podlet 1 podlet in parallel with 22V10–10
RESET 18 pF 16R8–5 + 22V10–10
All other signals 5 pF + 1 podlet 1 podlet
TMS 105 386SX Microprocessor Support Instruction Manual
Table 3–2 shows the environmental specifications.
T able 3–2: Environmental specifications*
Characteristic Description
Temperature
Specifications
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 386SX microprocessor thermal considerations. Forced air cooling
might be required across the CPU.
+50° C (+122° F)[
Table 3–3 shows the certifications and compliances that apply to the probe
adapter.
T able 3–3: Certifications and compliances
EC Compliance There are no current European Directives that apply to this product.
TMS 105 386SX Microprocessor Support Instruction Manual
3–3
Specifications
Figure 3–1 shows the dimensions of the probe adapter. Information on basic
operations shows the vertical clearance of the channel and clock probes when
connected to a probe adapter.
70 mm
(2.75 in)
35 mm
(1.38 in)
Pin A1
55 mm
(2.15 in)
27 mm
(1.07 in)
Channel Assignments
12 mm (.46 in)
Figure 3–1: Dimensions of the probe adapter
Channel assignments shown in Table 3–4 through Table 3–10 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 A tilde (~) following a signal name indicates an active low signal.
3–4
TMS 105 386SX Microprocessor Support Instruction Manual
Specifications
Table 3–4 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.
T able 3–4: Address group channel assignments
Bit
order
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 A1 1
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 386SX signal name
TMS 105 386SX Microprocessor Support Instruction Manual
3–5
Specifications
Á
Á
Á
Table 3–5 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.
T able 3–5: Data group channel assignments
Bit
order
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 386SX signal name
3–6
Table 3–6 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.
T able 3–6: Control group channel assignments
Bit
order
7
6
5
4
Á
Section:channel 386SX signal name
C2:4
C2:6
C2:0
C2:1
ÁÁÁÁ
RESET_L*
BHE~*
HLDA* [
READY~[
БББББББББББ
TMS 105 386SX Microprocessor Support Instruction Manual
T able 3–6: Control group channel assignments (cont.)
Á
Á
Á
Á
Á
Á
Bit
order
3
A3:3
386SX signal nameSection:channel
LOCK~*
Specifications
2
1
0
Á
A3:0
A3:1
A3:2
ÁÁÁÁ
M/IO~*
D/C~*
W/R~*
БББББББББББ
* Denotes signals used for disassembly.
[ Denotes signals used for micro clocking.
Table 3–7 shows the probe section and channel assignments for the Intr group
and the microprocessor signal to which each channel connects. By default, this
channel group is not visible.
T able 3–7: Intr group channel assignments
Bit
order
3
2
1
0
Section:channel 386SX signal name
Á
C3:3
ÁÁÁÁ
C3:7
C2:3
C2:7
NMI_L* [
БББББББББББ
INTR_L* [
NMI[
INTR[
* Denotes signals latched on the probe adapter.
[ Signal not required for disassembly.
Table 3–7 shows the probe section and channel assignments for the Copr group
and the microprocessor signal to which each channel connects. By default, this
channel group is displayed not visible.
T able 3–8: Copr group channel assignments
Bit
order
2
1
0
Section:channel 386SX signal name
A3:5
A3:6
A3:7
BUSY~*
ERROR~*
PEREQ*
* Signal not required for disassembly.
TMS 105 386SX Microprocessor Support Instruction Manual
3–7
Specifications
Á
Á
Á
Table 3–9 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 3–9: Misc group channel assignments
Bit
order
5
Á
4
Section:channel 386SX signal name
C3:0
ÁÁÁÁ
C3:4
HOLD*
БББББББББББ
NA_L~* [
3
2
1
0
C3:2
C2:2
C3:1
C2:5
NA~* [
ADS~
PIPE_D* }
CLK* §
* Signal not required for disassembly.
[ Denotes signal latched on the probe adapter.
]
Denotes signal derived on the probe adapter.
w
CLK2 divided by two.
Table 3–10 shows the probe section and channel assignments for the clock probes
(not part of any group) and the 386SX signal to which each channel connects.
T able 3–10: Clock channel assignments
Section:channel 386SX signal name
CK:3 PIPE_D
CK:2 CLK
CK:1 NA_L~
CK:0 RESET_L
3–8
TMS 105 386SX Microprocessor Support Instruction Manual
How Data is Acquired
Specifications
This part of this chapter explains how the module acquires 386SX signals using
the TMS 105 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
386SXA 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 386SX 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.
TMS 105 386SX Microprocessor Support Instruction Manual
3–9
Specifications
Figure 3–2 shows the sample points and the master sample point.
CLK
A23–A1
ADS~
NAL~
PIPE*PIPE*
Ready~
D15-D0
idle
Sample
Points
DC
Master
Sample
Point
idle
[
Nonpipelined
T1 T2 T1 T2 T2P T1P T2P T1P T2I Ti
A1 A2 A3 A4
A1 A2 A3 A4
D1 D2 D3 D4
(Write
D1)
Sample
Points
Master
Sample
AC*
DC
Point
[
(Read D2) (Read D3) (Read D4)
Sample
Points
AC*
Sample
Points
DC
Master
Sample
Point
Sample
Points
[
AC*
Pipelined
Sample
Points
[
DC
Master
Sample
Point
Sample
Points
AC*
* Signals sampled where AC appears are NAL~, NA~, BHE~, RESET_L, ADS~, HLDA, A23–A1,
A0/BLE~, PEREQ, ERROR~, BUSY~, and FLT~.
[ Signals sampled where DC appears are INTR_L, NMI_L, PIPE_D, INTR, CLK, NMI, READY~,
LOCK~, W/R~, D/C~, M /IO~, and D15–D0.
Figure 3–2: 386SX bus timing (pipelined and nonpipelined)
3–10
TMS 105 386SX Microprocessor Support Instruction Manual
Specifications
Clocking Options
The clocking algorithm for the 386SX support has two variations: DMA Cycles
Excluded and DMA Cycles Included.
A DMA cycle is defined as any bus cycle initiated under the control of an
alternate bus master. It does not need to be a DMA controller, such as an 82380.
It can be another microprocessor; it need only follow the basic bus protocol of
the 386SX, requiring only the CLK, NA~, ADS~, READY~, and HLDA signals.
It may support bus pipelining. DMA cycles are identified by the assertion of the
HLDA.
To display DMA cycles, they must appear at the 386SX socket where they can be
coupled to the probe adapter. To ensure they do so, you must enable and set
system buffering to route the address, data, and control bus signals to the 386SX.
This buffering configuration may require modification of the system under test.
The DMA Cycles field has two options:
H Excluded
Whenever HLDA is high, DMA cycles do not log or store data. Normal
logging and storage resumes when HLDA returns low. Bus cycles driven by
the 386SX microprocessor will be logged in.
H Included
When HLDA is low, all bus cycles are logged in, including DMA cycles,
provided system under test follows the 386SX bus transfer protocol and that
its SUT bus buffer is configured (as described above) to provide DMA cycles
at the 386SX socket.
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 3–4. 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
All 386SX microprocessor signals are accessible on the probe adapter.
TMS 105 386SX Microprocessor Support Instruction Manual
3–11
Specifications
Extra Channels
Table 3–11 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 3–11: Extra module sections and channels
Module Section: channels
102-channels C3:6, C3:5, C1:7-0, C0:7-0, D3:7-0, D2:7-0, Qual:1, Qual:0
136-channels C3:6, C3:5, C1:7-0, C0:7-0, D3:7-0, D2:7-0, E3:7-0, E2:7-0, E1:7-0, E0:7-0,
Qual:3-0
96-channels C3:6, C3:5, C1:7-0, C0:7-0, D3:7-0, D2:7-0
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.
3–12
TMS 105 386SX 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 section contains a circuit description of the probe adapter.
Probe Adapter Circuit Description
The TMS 105 probe adapter accommodates the 386SX microprocessor in a
100-pin PQFP package.
The probe adapter board consists of three PALs. The first PAL, a 16R8–5, is used
to divide the clock signal in half and synchronize the output with RESET. When
RESET is active the output is held high.
The second PAL, another 16R8–5, is programmed to behave as a D flip-flop. It is
used to latch the NMI, INTR, and NA~ signals.
The third PAL, a 22V10–10 is used to determine if the SUT is in pipelined mode.
This PAL generates a PIPE_D output which remains high during a pipelined bus
transaction. Since the user may press the Start key in the middle of a pipelined
bus transaction, and the module has no history of what happened before the start
key was pressed, this PAL allows the module to determine when to start logging
signals.
The 22V10–10 also latches the RESET signal when it is active, and it remains
latched until the first clock after the RESET goes inactive.
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.
TMS 105 386SX Microprocessor Support Instruction Manual
4–1
Maintenance
4–2
TMS 105 386SX Microprocessor Support Instruction Manual
Replaceable Electrical Parts
Replaceable Electrical Parts
This chapter contains a list of the replaceable electrical components for the
TMS 105 386SX 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 105 386SX 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 105 386SX Microprocessor Support Instruction Manual
Replaceable Electrical Parts
Manufacturers cross index
Mfr.
code
TK0875 MATSUO ELECTRONICS INC 831 S DOUBLAS ST EL SEGUNDO CA 92641
TK2058 TDK CORPORATION OF AMERICA 1600 FEEHANVILLE DRIVE MOUNT PROSPECT, IL 60056
53387 3M COMPANY ELECTRONIC PRODUCTS DIV 3M AUSTIN CENTER AUSTIN TX 78769–2963
80009 TEKTRONIX INC 14150 SW KARL BRAUN DR
Manufacturer Address City, state, zip code
PO BOX 500
BEAVERT ON OR 97077–0001
Replaceable electrical parts list
Component
number
A1 671–2441–00 CIRCUIT BD ASSY:386SX,PQFP100 SOLDERED,PROBE
A1C100 283–5003–00 CAP,FXD,CERAMIC:MLC;0.01UF,10%,50V,X7R,1206 TK2058 C3216X7R1H103K–
A1C110 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C120 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C122 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C145 283–5003–00 CAP,FXD,CERAMIC:MLC;0.01UF,10%,50V,X7R,1206 TK2058 C3216X7R1H103K–
A1C215 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C230 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C320 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C325 283–5003–00 CAP,FXD,CERAMIC:MLC;0.01UF,10%,50V,X7R,1206 TK2058 C3216X7R1H103K–
A1C330 283–5004–00 CAP,FXD,CERAMIC:MLC;0.1UF,10%,25V,X7R,1206 TK2058 C3216X7R1E104K–
A1C340 290–5005–00 CAP ,FXD,TANT:;47UF,10%,10V,5.8MM X 4.6MM TK0875 267M–1002–476–K
A1C350 283–5003–00 CAP,FXD,CERAMIC:MLC;0.01UF,10%,50V,X7R,1206 TK2058 C3216X7R1H103K–
A1J100 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
A1J120 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
A1J240 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
A1J250 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
A1J330 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
A1J345 ––––––––––– CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235
Tektronix
part number
Serial no.
effective
Serial no.
discont’d
Name & description
ADAPTER;
(SEE RMPL)
(SEE RMPL)
(SEE RMPL)
(SEE RMPL)
(SEE RMPL)
(SEE RMPL)
Mfr.
code
80009 6712441XX
Mfr. part number
A1P230 ––––––––––– CLIP,ELEC:ASSEMBLY,PQFP10
A1U100 160–8837–00 IC,DIGITAL:STTL,PLD;PAL,16R8,5NS,210MA,CLOCK–DIV 80009 160–8837–00
A1U200 160–8855–00 IC,DIGITAL:STTL,PLD;PAL,16R8,5NS,210MA,LATCH 80009 160–8855–00
A1U300 160–8838–01 IC,DIGITAL:PLD;OTP,22V10,10NS,71MHZ,180MA 80009 160–8838–00
(SEE RMPL)
TMS 105 386SX Microprocessor Support Instruction Manual
5–3
Replaceable Electrical Parts
5–4
TMS 105 386SX Microprocessor Support Instruction Manual
Replaceable Mechanical Parts
Replaceable Mechanical Parts
This chapter contains a list of the replaceable mechanical components for the
TMS 105 386SX 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 Mechanical Parts List
The tabular information in the Replaceable Mechanical 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 the content of each column in the parts list.
TMS 105 386SX Microprocessor Support Instruction Manual
6–1
Replaceable Mechanical Parts
Parts list column descriptions
Column Column name Description
1 Figure & index number Items in this section are referenced by figure and index numbers to the exploded view illustrations
that follow.
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 entries indicates the part is
good for all serial numbers.
5 Qty This indicates the quantity of parts used.
6 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.
7 Mfr. code This indicates the code of the actual manufacturer of the part.
8 Mfr. part number This indicates the actual manufacturer’s or vendor’s part number.
Abbreviations
Chassis Parts
Abbreviations conform to American National Standard ANSI Y1.1–1972.
Chassis-mounted parts and cable assemblies are located at the end of the
Replaceable Electrical Parts List.
Mfr. Code to Manufacturer
Cross Index
The table titled Manufacturers Cross Index shows codes, names, and addresses of
manufacturers or vendors of components listed in the parts list.
Manufacturers cross index
Mfr.
code
TK2548 XEROX BUSINESS SERVICES
53387 3M COMPANY
80009 TEKTRONIX INC 14150 SW KARL BRAUN DR
Manufacturer Address City, state, zip code
DIV OF XEROX CORPORATION
ELECTRONIC PRODUCTS DIV
14181 SW MILLIKAN WA Y BEAVERTON OR 97077
3M AUSTIN CENTER AUSTIN TX 78769–2963
PO BOX 500
BEAVERT ON OR 97077–0001
6–2
TMS 105 386SX Microprocessor Support Instruction Manual
Replaceable Mechanical Parts
Replaceable mechanical parts list
Fig. &
index
number
1–1 131–5267–00 2 CONN,HDR:PCB,;MALE,STR,2 X 40,0.1 CTR,0.235 MLG X
–2 671–2441–00 1 CIRCUIT BD ASSY:386SX,PQFP100 SOLDERED,PROBE
Tektronix part
number
070–9808–00 1 MANUAL,TECH:INSTRUCTION,386SX,DISSASEMBLER,
070–9803–00 1 MANUAL, TECH:TLA 700 SERIES MICRO SUPPORT
070–9802–00 1 MANUAL, TECH:BASIC OPS MICRO SUP ON DAS/TLA 500
Serial no.
effective
Serial no.
discont’d
Qty Name & description
0.110 TAIL,30GOLD
(J100,J120,J240,J250,J330,J345)
ADAPTER;
STANDARD ACCESSORIES
TMS 105
INSTALLATION
OPTIONAL ACCESSORIES
SERIES LOGIC ANALYZERS
Mfr.
code
53387 2480–6122–TB
80009 671244100
80009 070–9808–00
80009 070–9803–00
80009 070–9802–00
Mfr. part number
TMS 105 386SX Microprocessor Support Instruction Manual
6–3
Replaceable Mechanical Parts
1
2
Figure 6–1: 386SX probe adapter exploded view
6–4
TMS 105 386SX Microprocessor Support Instruction Manual
Index
Index
A
about this manual set, ix
acquiring data, 2–5
Address group
channel assignments, 3–5
display column, 2–7
alternate connections
extra channel probes, 3–12
to other signals, 3–11
B
basic operations, where to find information, ix
bus cycles, displayed cycle types, 2–6
bus timing, 3–10
C
certifications, 3–3
channel assignments
Address group, 3–5
clocks, 3–8
Control group, 3–6
Copr group, 3–7
Data group, 3–6
Intr group, 3–7
Misc group, 3–8
channel groups, 2–1
clock channel assignments, 3–8
clock rate, 1–2
clocking, Custom, 2–1
how data is acquired, 3–9
clocking options
DMA Cycles, 2–2
field names, 2–2
how data is acquired, 3–11
Code Segment Size field, 2–9
compliances, 3–3
connections
no probe adapter, 1–6
other microprocessor signals, 3–11
probe adapter to SUT, PQFP, 1–3
Control Flow display format, 2–8
Control group
channel assignments, 3–6
symbol table, 2–2
Copr group, channel assignments, 3–7
Custom clocking, 2–1
DMA Cycles, 2–2
how data is acquired, 3–9
cycle types, 2–6
D
data
acquiring, 2–5
disassembly formats
!
!
!
how it is acquired, 3–9
data display , changing, 2–8
Data group
channel assignments, 3–6
display column, 2–7
demonstration file, 2–12
dimensions, probe adapter, 3–4
disassembled data
cycle type definitions, 2–6
viewing, 2–5
viewing an example, 2–12
disassembler
definition, ix
logic analyzer configuration, 1–2
setup, 2–1
Disassembly Format Definition overlay, 2–9
Disassembly property page, 2–9
display formats
Control Flow, 2–8
Hardware, 2–6
Software, 2–8
special characters, 2–5
Subroutine, 2–8
DMA Cycles, clocking option, 2–2
E
electrical specifications, 3–2
environmental specifications, 3–3
exception vectors, 2–10
TMS 105 386SX Microprocessor Support Instruction Manual
Index–1
Index
H
Hardware display format, 2–6
cycle type definitions, 2–6
I
installing hardware. See connections
Interrupt Table Address field, 2–9
Interrupt Table field, 2–9
Interrupt T able Size field, 2–9
Intr group, channel assignments, 3–7
L
leads (podlets). See connections
logic analyzer
configuration for disassembler, 1–2
software compatibility, 1–2
M
manual
conventions, ix
how to use the set, ix
Mark Cycle function, 2–9
Mark Opcode function, 2–9
marking cycles, definition of, 2–9
microprocessor
package types supported, 1–1
specific clocking and how data is acquired, 3–9
Misc group, channel assignments, 3–8
Mnemonic display column, 2–8
connecting leads, 1–3
hardware description, 3–1
not using one, 1–6
R
reference memory, 2–12
restrictions, 1–2
without a probe adapter, 1–6
S
service information, 4–1
setups, disassembler, 2–1
signals
active low sign, x
alternate connections, 3–11
extra channel probes, 3–12
Software display format, 2–8
special characters displayed, 2–5
specifications, 3–1
certifications, 3–3
channel assignments, 3–4
compliances, 3–3
electrical, 3–2
environmental, 3–3
mechanical (dimensions), 3–4
Subroutine display format, 2–8
support setup, 2–1
SUT, definition, ix
symbol table, Control channel group, 2–2
system file, demonstration, 2–12
T
P
probe adapter
alternate connections, 3–11
circuit description, 4–1
clearance, 1–3
configuring, 1–3
Index–2
terminology, ix
Timestamp display column, 2–8
V
viewing disassembled data, 2–5
TMS 105 386SX Microprocessor Support Instruction Manual
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