Fluke 9000A-Z80 Interface
Fabricante:
Modelo:
9000A-Z80
Data:
1981
Categoria:
Grupo:
Descrição:
Interface Pod
Informação
PURPOSE OF Interface POD The purpose of the 9000A-Z80 Interface Pod, hereafter referred to as the pod, is to Interface any 9000 Series Micro System Troubleshooter to a piece of equipment employing a Z80 microprocessor. The 9000 Series Micro System Troubleshooters are designed to service printed circuit boards, instruments and systems employing bus-oriented microprocessors. While the architecture of the troubleshooter main frame is general in nature and is designed to accomodate processors with up to 32 address lines and 32 data lines, the Interface pod adapts the general purpose architecture of the 9000 Series to a specific microprocessor, or microprocessor family. The Interface pod adapts the 9000 Series to microprocessor-specific functions such as pin layout, status/control functions, interrupt handling, timing, size of memory space, and size of I/O space. DESCRIPTION OF Interface POD The pod consists of a pair of printed circuit board assemblies mounted within a small break-resistant case. A shielded 24-conductor cable connects the printed circuit boards to the troubleshooter; a ribbon cable and connector provide connection to the unit under test, hereafter referred to as the UUT. Figure I-I shows the relationship of the pod to the troubleshooter and to the UUT. Connection from the pod to the troubleshooter is via a front-mounted 25-pin connector. Connection to the UUT is made by plugging the ribbon cable plug directly into the microprocessor socket. The UUT microprocessor socket gives the troubleshooter direct access to all system components which normally communicate with the microprocessor. The pod contains a Z80 microprocessor and the supporting hardware and control Software required to: • Receive and execute commands from the troubleshooter • Report UUT status to the troubleshooter • Emulate the UUT microprocessor The pod is powered by the troubleshooter, but is clocked by the UUT clock signal. Using the UUT clock signal allows the troubleshooter and pod to operate at the designed operating speed of the UUT. Logic level detection circuits are provided on each line to the UUT. These circuits allow detection of bus shorts, stuck-high or stuck-low conditions, and any bus drive conflict (two or more drivers attempting to drive the same bus line). Over-voltage protection circuits are also provided on each line to the UUT. These circuits guard against pod damage which could result from: • Incorrectly inserting the ribbon cable plug in the UUT microprocessor socket. • UUT faults which place potentially damaging voltages on the UUT microprocessor socket. The over-voltage protection circuits guard against voltages of+12 to -7 volts on any one pin. Multiple faults, especially of long duration, may cause pod damage. A power level sensing circuit constantly monitors the voltage level of the UUT Power supply (+5V). If UUT power rises above or drops below an acceptable level, the pod notifies the troubleshooter of the power fail condition. A self test socket provided on the pod enables the troubleshooter to check pod operation. The self test socket is a 40-pin zero-insertion force type connector. The ribbon cable plug must be connected to the self test socket during self test operation. The ribbon cable plug should also be inserted into this socket when the pod is not in use to provide protection for the plug.

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Serviço e Manual do Usuário
Tipo de manual:
Serviço e Manual do Usuário
Páginas:
61
Tamanho:
7.70 Mbytes (8071353 Bytes)
Idioma:
english
Revisão:
ID de manual:
613794
Data:
01 Junho 1981
Qualidade:
Scaned documento, todas legível.
Data de upload:
28 Janeiro 2018
MD5:
a52bfee35e5b0b37cc99134c60cca5d1
Downloads:
174
Informação
Instruction Manual 1 INTRODUCTION ... 1-1 1-1. PURPOSE OF Interface POD ... 1-1 1-2. DESCRIPTION OF Interface POD ... 1-1 1-3. SPECIFICATIONS ... 1-2 2 INSTALLATION ... 2-1 2-1. GENERAL ... 2-1 2-2. MAKING CONNECTIONS ... 2-1 2-3. POWER CONNECTIONS ... 2-2 3 MICROPROCESSOR DATA ... 3-1 3-1. INTRODUCTION ... 3-1 3-2. Z80 SIGNALS ... 3-1 3-3. STATUS/CONTROL LINES AND ADDRESS SPACE ASSIGNMENT ... 3-1 3-4. Introduction ... 3-4 3-5. Bit Assignment - Status Lines ... 3-4 3-6. User-Writeable Control Lines ... 3-4 3-7. Bit Assignment - Control Lines ... 3-5 3-8. Address Space Assignment ... 3-5 3-9. FORCING AND INTERRUPT LINES ... 3-6 3-10. LINES ENABLED DURING TROUBLESHOOTER SETUP ... 3-6 3-11. NON-DETECTABLE Z80 SIGNALS ... 3-7 3-12. MARGINAL UUT PROBLEMS ... 3-7 3-13. Introduction ... 3^7 3-14. UUT Operating Speed and Memory Access ... 3-7 3-15. UUT Noise Levels ... 3-7 3-16. Bus Loading ... 3-7 3-17. Clock Loading ... 3-7 3-18. POD DRIVE CAPABILITY ... 3-8 3-19. POWER FAILURE DETECTION LIMITS ... 3-8 4 THEORY OF OPERATION ... 4-1 4-I. INTRODUCTION ... 4-I 4-2. GENERAL POD OPERATION ... 4-1 4-3. Processor Section ... 4-1 4-4. UUT Interface Section ... 4-4 4-5. Timing Section ... 4-4 4-6. UUT Power Sensing ... 4-5 4-7. DETAILED BLOCK DIAGRAM DESCRIPTION ... 4-5 4-8. Processor Section ... 4-5 4-9. UUT Interface Section - General ... 4-8 4-10. UUT Interface Section - Data Lines ... 4-9 4-11. UUT Interface Section - Address Lines ... 4-12 4-13. Timing Section ... 4-12 5 MAINTENANCE ... 5-1 5-1. INTRODUCTION ... 5-1 5-2. SELF TEST ... 5-1 5-3. REPAIR PRECAUTIONS ... 5-2 5-4. TROUBLESHOOTING ... 5-3 5-5. Introduction ... 5-3 5-6. Pod Defective or Inoperative? ... 5-6 5-7. Selecting a UUT for Pod Testing ... 5-6 5-8. Troubleshooting a Defective Pod ... 5-7 5-13. Troubleshooting an Inoperative Pod ... 5-11 5-14. DISASSEMBLY ... 5-15 6 LIST OF REPLACEABLE PARTS ... 6-1 6-1. INTRODUCTION ... 6-1 6-2. HOW TO OBTAIN PARTS ... 6-1 7 SCHEMATIC DIAGRAMS ... 7-1

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