Performance Computer PT-VME151A Manuale utente
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Document Number 126A0180
315 Science Parkway
Performance
A Performance Technologies Company
Rochester, New York USA 14620
Computer
USER’S MANUAL
PT-VME151A/151AE
Extensible Single Board Computer/Controller
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When reviewing this document please note any issues that you may have with the document (errors,
points of confusion, grammar or spelling mistakes, etc.) and contact Technical Publications at (716) 256-
Copyright Notice
© 1993-1994 by Performance Computer, a Performance Technologies Company. -- Printed in USA.
315 Science Parkway, Rochester, New York 14620
Trademarks
Microware and OS-9 are trademarks of Microware Systems Corporation.
PTbug is a trademark of Performance Computer.
All other brands or names are trademarks of their respective holders.
All rights reserved. This document is the sole property of Performance Computer.
Rev ECN Pages Affected Date Approvals
10 - All 11/22/93
11 Minor Rev 60 1/11/94
20 080A000154 Schematic 1,15 (1 of 28) 4/22/94
30 080A000179 Schematic 1,3,14 & 26 12/05/94
REVISION CONTROL
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NOTICE
This document presents information for users of the Performance Computer Models PT-VME151A
Extensible Single Board Computer/Controller.
Although the information contained within this document is considered accurate and characteristic of the
subject product, Performance Computer reserves the right to make changes to this document and any prod-
ucts described herein to improve reliability, function, or design. Performance Computer does not assume
any liability arising out of the application or use of any product or circuit described herein.
No part of this document may be copied or reproduced in any form or by any means without the prior
permission of Performance Computer.
WARNING
THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY
AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL,
MAY CAUSE INTERFERENCE TO RADIO COMMUNICATIONS. AS TEMPORARILY
PERMITTED BY REGULATION, IT HAS NOT BEEN TESTED FOR COMPLIANCE WITH THE
LIMITS FOR CLASS A COMPUTING DEVICES PURSUANT TO SUBPART J OF PART 15 OF FCC
RULES, WHICH ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST SUCH
INTERFERENCE. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO
CAUSE INTERFERENCE, IN WHICH CASE THE USER, AT HIS OWN EXPENSE, WILL BE
REQUIRED TO TAKE WHATEVER MEASURES MAY BE REQUIRED TO CORRECT THE INTER-
FERENCE.
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Safety Information
This section is provided as a summary of the safety recommendations throughout this manual. Perfor-
mance Computer (PCC) recommends that all safety precautions are followed to prevent harm to yourself
or the equipment. Please follow all warnings marked on the equipment.
Safety Precautions
• Follow all warnings and instructions marked on the equipment.
• Ensure that the voltage and frequency of your power source matches the voltage and frequency
inscribed on the equipments electrical rating label.
• Never push objects of any kind through the openings in the equipment. Dangerous voltages may be
present. Conductive foreign objects could produce a short circuit that could cause fire, electrical
shock, or damage your equipment.
Symbols
The following symbols appear in this document.
CAUTION: There is risk of personal injury or equipment damage. Follow the instructions.
WARNING: Hazardous voltages are present. To reduce the risk of electric shock and danger to personal
heath, follow the instructions.
!
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Table of Contents
Performance Computer
Extensible Single Board Computer/Controller User’s Manual v
Section 1 INTRODUCTION 1
Scope 1
Applicable Documents 2
Model Designations 3
Features 4
Family Members 6
PT-VME131/131E 6
PT-VME141/141E 7
PT-VME151/151E 7
Glossary and Conventions 8
Glossary 8
Conventions 9
Section 2 GETTING STARTED 11
Unpacking and Inspection 11
Hardware Configuration 12
Device Positions 12
“Watchdog” Timer Setup 13
PROM/ROM/SRAM/EEPROM Socket Configuration 14
Location U23 Setup 15
Location U38 Setup 15
SCSI Termination 17
Disabling Termination 17
Termination Power Source 17
TERMPWR Overview 17
DRAM Module Upgrading 19
EPAK Installation 20
Board Installation 21
Power Considerations 21
Slot Considerations 21
Backplane Insertion 21
SCSI Considerations 23
Cabling 23
Example 23
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Table of Contents
vi Extensible Single Board Computer/Controller User’s Manual
Mechanical restraints 24
SCSI device grounds 24
Device addresses 25
Serial Port Cabling 25
Example 25
Mechanical restraints 26
Section 3 FUNCTIONAL DESCRIPTION 27
Microprocessor 28
Memory 28
DRAM 28
DRAM Mapping 29
Sizing 29
Parity 30
Checking 30
Initialization 31
Testing 31
PROM/SRAM Sockets 31
Nonvolatile SRAM and Time of Day/Calendar Clock 31
Serial EEPROM 31
Interval Timer 32
VMEbus Interface 33
DARF64 33
VME
64
Transfers 33
Transfer Modes 33
Decoupled 34
Atomic 34
VMEbus Control Logic 34
VMEbus Slave Accesses 35
EPAK Access from the VMEbus 35
VMEbus Master Accesses 35
68040 Accesses 35
Read-Modify-Write 36
DMAC 36
Location Monitor 37
Registers 37
Test and Diagnostics 37
ACC 38
Reset 38
Local Bus Timer 38
Watchdog Timer 38
Tick Timer 39
Register Block 39
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Performance Compute
r
Extensible Single Board Computer/Controller User’s Manual vii
Interrupt Handler 39
Local Level 7 Sources 39
Abort 40
SCSI Bus Reset 40
AC Fail 40
System Fail 40
General Purpose Local Interrupts 40
Location Monitor FIFO 41
DARF64 VME Event 41
Timer Event 41
Tick 42
Interval 42
I/O Event 42
FAS216 Requests 42
EPAK Requests (-EPIRQ) 42
EPAK Vectored Interrupt Request 43
DUART Interrupt Request (-INTP<5>) 43
VMEbus Interrupts 43
Interrupt Acknowledgment 44
VMEbus Requester 44
System Monitor Functions 44
Reset 44
System Clock Driver 44
VMEbus Arbiter 44
IACK Daisy Chain Driver 45
Bus Timer 45
I/O UTILITIES 45
System Control Registers 45
System Control Register 1 45
VMEbus Page Select 46
User LEDs 46
SCSI DMA Read/Write Direction 46
EPAK Space Cache Enable 46
VMEbus Space Cache Enable 46
System Control Register 2 47
Enable EPAK Access from the VMEbus 47
Enable Parity Error Checking 47
Enable Bad Parity 47
Enable Interval Timer Interrupts 49
Enable Tick Timer Interrupts 49
System Status Registers 50
System Status Register 1 50
Hex Switch 50
System Status Register 2 50
68040 Parity Error 50
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Table of Contents
viii Extensible Single Board Computer/Controller User’s Manual
SCSI DMA Parity Error 50
DARF Parity Error 50
EPAK Parity Error 51
SCSI Present 51
System Status Register 3 51
DRAM Size 51
Parity Installed 51
Interval Timer Interrupt Pending 51
DUART 52
Utility Serial Ports 52
General Purpose Timer/Counter 52
Parallel Input Port 52
Clear-to-Send 52
Data-Terminal-Ready 52
EPAK General Purpose Input 53
Serial EEPROM Data In 53
Parallel Output Port 53
Request-to-Send 53
Data-Set-Ready 53
EPAK General Purpose Output 53
Serial EEPROM Select 53
Serial EEPROM Control 53
Serial EEPROM Data Out 54
SCSI Controller 55
SCSI Bus 55
Register Access 55
DMA Mechanism 56
Interrupts 56
Termination 56
EPAK Interface 58
Section 4 FUNCTIONAL SUMMARY 59
Memory Map 59
Default VMEbus Slave Addressing 60
151A System Registers 61
System Control Register 1 61
System Control Register 2 63
System Status Register 1 64
System Status Register 2 65
System Status Register 3 66
SCSI Memory Address Register 67
Jumper List (Defaults) 67
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Performance Compute
r
Extensible Single Board Computer/Controller User’s Manual ix
Interrupt Control 68
Register Maps 69
ACC 69
DARF64 70
DS1643 Nonvolatile Timekeeping RAM 71
82C54 Interval Timer 71
EMULEX FAS216 SCSI Controller 72
68681 DUART 72
Controls and Indicators 73
Rotary Switch 73
“RUN” Indicator 74
“FAULT” Indicator 74
“VME” Indicator 74
RESET Switch 74
ABORT Switch 74
User Programmable LEDs 74
Section 5 CONNECTOR PINOUTS 75
Utility Serial Port Pin Assignments 75
VMEbus Pin Assignments 76
EPAK Connectors 78
DRAM Module 79
Section 6 MECHANICAL AND ENVIRONMENTAL 81
Power Requirements 81
Ambient Temperature 81
Humidity 81
Vibration 81
Mechanical Shock 82
Physical Dimensions 82
Section 7 APPENDICES 83
Product Warranty 83
Product Return Procedure 84
Installation Notes 85
EEPROM Usage 86
PTbug 86
OS-9 87
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