Motorola MVME1X7P User manual

MVME1X7P Single-Board Computer
Programmer’s Reference
Guide
V1X7PA/PG1
Edition of October 2000

© Copyright 2000 Motorola, Inc.
All rights reserved.
Printed in the United States of America.
Motorola® and the Motorola logo are registered trademarks of Motorola, Inc.
MC68040™ and MC68060™ are trademarks of Motorola, Inc.
All other products mentioned in this document are trademarks or registered trademarks of
their respective holders.

Safety Summary
The following general safety precautions must be observed during all phases of operation, service, and repair of this
equipment. Failure to comply with these precautions or with specific warnings elsewhere in this manual could result
in personal injury or damage to the equipment.
The safety precautions listed below represent warnings of certain dangers of which Motorola is aware. You, as the user
of the product, should follow these warnings and all other safety precautions necessary for the safe operation of the
equipment in your operating environment.
Ground the Instrument.
To minimize shock hazard, the equipment chassis and enclosure must be connected to an electrical ground. If the
equipment is supplied with a three-conductor AC power cable, the power cable must be plugged into an approved
three-contact electrical outlet, with the grounding wire (green/yellow) reliably connected to an electrical ground
(safety ground) at the power outlet. The power jack and mating plug of the power cable meet International
Electrotechnical Commission (IEC) safety standards and local electrical regulatory codes.
Do Not Operate in an Explosive Atmosphere.
Do not operate the equipment in any explosive atmosphere such as in the presence of flammable gases or fumes.
Operation of any electrical equipment in such an environment could result in an explosion and cause injury or damage.
Keep Away From Live Circuits Inside the Equipment.
Operating personnel must not remove equipment covers. Only Factory Authorized Service Personnel or other
qualified service personnel may remove equipment covers for internal subassembly or component replacement or any
internal adjustment. Service personnel should not replace components with power cable connected. Under certain
conditions, dangerous voltages mayexisteven with thepower cable removed. To avoid injuries, suchpersonnel should
always disconnect power and discharge circuits before touching components.
Use Caution When Exposing or Handling a CRT.
Breakage of a Cathode-Ray Tube (CRT) causes a high-velocity scattering of glass fragments (implosion). To prevent
CRT implosion, do not handle the CRT and avoid rough handling or jarring of the equipment. Handling of a CRT
should be done only by qualified service personnel using approved safety mask and gloves.
Do Not Substitute Parts or Modify Equipment.
Do not install substitute parts or perform any unauthorized modification of the equipment. Contact your local
Motorola representative for service and repair to ensure that all safety features are maintained.
Observe Warnings in Manual.
Warnings, such as the example below, precede potentially dangerous procedures throughout this manual. Instructions
contained in the warnings must be followed. You should also employ all other safety precautions which you deem
necessary for the operation of the equipment in your operating environment.
Warning
To prevent serious injury or death from dangerous voltages, use extreme
caution when handling, testing, and adjusting this equipment and its
components.

Flammability
All Motorola PWBs (printed wiring boards) are manufactured with a flammability rating
of 94V-0 by UL-recognized manufacturers.
EMI Caution
!
Caution
This equipment generates, uses and can radiate electromagnetic energy. It
may cause or be susceptible to electromagnetic interference (EMI) if not
installed and used with adequate EMI protection.
Lithium Battery Caution
This product contains a lithium battery to power the clock and calendar circuitry.
!
Caution
Dangerofexplosionif battery is replaced incorrectly. Replace battery only
with the same or equivalent type recommended by the equipment
manufacturer. Dispose of used batteries according to the manufacturer’s
instructions.
Attention
!Il y a danger d’explosion s’il y a remplacement incorrect de la batterie.
Remplacer uniquement avec une batterie du même type ou d’un type
équivalent recommandé par le constructeur. Mettre au rebut les batteries
usagées conformément aux instructions du fabricant.
Vorsicht
!Explosionsgefahr bei unsachgemäßem Austausch der Batterie. Ersatz nur
durch denselben oder einen vom Hersteller empfohlenen Typ. Entsorgung
gebrauchter Batterien nach Angaben des Herstellers.

CE Notice (European Community)
Motorola Computer Group products with the CE marking comply with the EMC Directive
(89/336/EEC). Compliance with this directive implies conformity to the following
European Norms:
EN55022 “Limits and Methods of Measurement of Radio Interference Characteristics
of Information Technology Equipment”; this product tested to Equipment Class B
EN50082-1:1997 “Electromagnetic Compatibility—Generic Immunity Standard, Part
1. Residential, Commercial and Light Industry”
System products also fulfill EN60950 (product safety) which is essentially the requirement
for the Low Voltage Directive (73/23/EEC).
Board products are tested in a representative system to show compliance with the above
mentioned requirements. A proper installation in a CE-marked system will maintain the
required EMC/safety performance.
In accordance with European Community directives, a “Declaration of Conformity” has
been made and is on file within the European Union. The “Declaration of Conformity” is
available on request. Please contact your sales representative.
Notice
While reasonable efforts have been made to assure the accuracy of this document,
Motorola, Inc. assumes no liability resulting from any omissions in this document, or from
the use of the information obtained therein. Motorola reserves the right to revise this
document and to make changes from time to time in the content hereof without obligation
of Motorola to notify any person of such revision or changes.
Electronic versions of this material may be read online, downloaded for personal use, or
referenced in another document as a URL to the Motorola Computer Group website. The
text itselfmay not be published commercially in print or electronic form, edited, translated,
or otherwise altered without the permission of Motorola, Inc.
It is possible that this publication may contain reference to or information about Motorola
products (machines and programs), programming, or services that are not available in your
country. Such references or information must not be construed to mean that Motorola
intends to announce such Motorola products, programming, or services in your country.

Limited and Restricted Rights Legend
If the documentation contained herein is supplied, directly or indirectly, to the U.S.
Government, the following notice shall apply unless otherwise agreed to in writing by
Motorola, Inc.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in
subparagraph (b)(3) of the Rights in Technical Data clause at DFARS 252.227-7013 (Nov.
1995) and of the Rights in Noncommercial Computer Software and Documentation clause
at DFARS 252.227-7014 (Jun. 1995).
Motorola, Inc.
Computer Group
2900 South Diablo Way
Tempe, Arizona 85282

vii
Contents
About This Manual
Overview of Contents ...............................................................................................xxii
Comments and Suggestions......................................................................................xxii
Conventions Used in This Manual...........................................................................xxiii
CHAPTER 1 Programming Issues
Introduction................................................................................................................1-1
The Petra ASIC and Second-Generation MVME1X7 Boards............................1-1
Features...............................................................................................................1-3
Applicable Industry Standards............................................................................1-4
Block Diagram....................................................................................................1-4
Programming Interfaces.............................................................................................1-7
MC680X0 MPU..................................................................................................1-7
Data Bus Structure..............................................................................................1-7
EEPROMs on the MVME1X7P.........................................................................1-8
MVME167...................................................................................................1-8
MVME177...................................................................................................1-9
Flash Memory on the MVME177.......................................................................1-9
SRAM...............................................................................................................1-10
Onboard SDRAM.............................................................................................1-11
Battery-Backed-Up RAM and Clock................................................................1-12
VMEbus Interface.............................................................................................1-12
I/O Interfaces ....................................................................................................1-12
Serial Port Interface...................................................................................1-13
Parallel (Printer) Interface.........................................................................1-14
Ethernet Interface ......................................................................................1-15
SCSI Interface............................................................................................1-16
Local Resources................................................................................................1-16
Programmable Tick Timers.......................................................................1-16
Watchdog Timer........................................................................................1-17
Software-Programmable Hardware Interrupts...........................................1-17
Local Bus Timeout ....................................................................................1-17

viii
Functional Description ............................................................................................1-17
VMEbus Interface and VMEchip2...................................................................1-18
VMEchip2 General-Purpose I/O...............................................................1-18
Petra/VMEchip2 Redundant Logic...........................................................1-18
Memory Maps..........................................................................................................1-20
Local Bus Memory Map...................................................................................1-20
Normal Address Range .............................................................................1-20
Detailed I/O Memory Maps......................................................................1-25
BBRAM/TOD Clock Memory Map .........................................................1-41
Interrupt Acknowledge Map .....................................................................1-46
VMEbus Memory Map ....................................................................................1-46
VMEbus Accesses to the Local Bus .........................................................1-46
VMEbus Short I/O Memory Map .............................................................1-46
Interrupt Handling ...................................................................................................1-47
Example: VMEchip2 Tick Timer 1 Periodic Interrupt.....................................1-47
Cache Coherency (MVME167P).............................................................................1-49
Cache Coherency (MVME177P).............................................................................1-50
Using Bus Timers ....................................................................................................1-51
Indivisible Cycles ....................................................................................................1-52
Supervisor Stack Pointer (MC68060)......................................................................1-53
Sources of Local Bus Errors....................................................................................1-54
Local Bus Timeout ...........................................................................................1-54
VMEbus Access Timeout.................................................................................1-54
VMEbus BERR*..............................................................................................1-54
VMEchip2 ........................................................................................................1-55
Bus Error Processing........................................................................................1-55
Error Conditions......................................................................................................1-55
MPU Parity Error .............................................................................................1-56
MPU Offboard Error ........................................................................................1-56
MPU TEA - Cause Unidentified ......................................................................1-56
MPU Local Bus Time-out ................................................................................1-57
DMAC VMEbus Error.....................................................................................1-57
DMAC Parity Error..........................................................................................1-57
DMAC Offboard Error.....................................................................................1-58
DMAC LTO Error ............................................................................................1-58
DMAC TEA - Cause Unidentified...................................................................1-59
SCC Retry Error...............................................................................................1-59
SCC Parity Error ..............................................................................................1-60
SCC Offboard Error .........................................................................................1-60
SCC LTO Error.................................................................................................1-61
LAN Parity Error..............................................................................................1-61

ix
LAN Offboard Error.........................................................................................1-61
LAN LTO Error ................................................................................................1-62
SCSI Parity Error..............................................................................................1-62
SCSI Offboard Error.........................................................................................1-62
SCSI LTO Error................................................................................................1-63
CHAPTER 2 VMEchip2
Introduction................................................................................................................2-1
Functional Blocks ......................................................................................................2-4
Local-Bus-to-VMEbus Interface ........................................................................2-4
Local-Bus-to-VMEbus Requester ...............................................................2-7
VMEbus-to-Local-Bus Interface ........................................................................2-9
Local-Bus-to-VMEbus DMA Controller..........................................................2-10
No-Address-Increment DMA Transfers....................................................2-12
DMAC VMEbus Requester.......................................................................2-13
Tick and Watchdog Timers...............................................................................2-14
Prescaler.....................................................................................................2-14
Tick Timers................................................................................................2-15
Watchdog Timer........................................................................................2-15
VMEbus Interrupter..........................................................................................2-16
VMEbus System Controller..............................................................................2-17
Arbiter........................................................................................................2-17
IACK Daisy-Chain Driver.........................................................................2-17
Bus Timer..................................................................................................2-17
Reset Driver...............................................................................................2-18
Local Bus Interrupter and Interrupt Handler ....................................................2-18
Global Control and Status Registers.................................................................2-20
LCSR Programming Model.....................................................................................2-20
Programming the VMEbus Slave Map Decoders.............................................2-26
VMEbus Slave Ending Address Register 1 ..............................................2-28
VMEbus Slave Starting Address Register 1 .............................................2-28
VMEbus Slave Ending Address Register 2 ..............................................2-29
VMEbus Slave Starting Address Register 2 .............................................2-29
VMEbus Slave Address Translation Address Offset Register 1 ..............2-29
VMEbus Slave Address Translation Select Register 1 ............................2-30
VMEbus Slave Address Translation Address Offset Register 2...............2-31
VMEbus Slave Address Translation Select Register 2 ............................2-31
VMEbus Slave Write Post and Snoop Control Register 2 ........................2-32
VMEbus Slave Address Modifier Select Register 2 .................................2-33
VMEbus Slave Write Post and Snoop Control Register 1 ........................2-35

x
VMEbus Slave Address Modifier Select Register 1.................................2-36
Programming the Local-Bus-to-VMEbus Map Decoders................................2-37
Local Bus Slave (VMEbus Master) Ending Address Register 1 ..............2-39
Local Bus Slave (VMEbus Master) Starting Address Register 1.............2-40
Local Bus Slave (VMEbus Master) Ending Address Register 2 ..............2-40
Local Bus Slave (VMEbus Master) Starting Address Register 2.............2-40
Local Bus Slave (VMEbus Master) Ending Address Register 3 .............2-41
Local Bus Slave (VMEbus Master) Starting Address Register 3 ............2-41
Local Bus Slave (VMEbus Master) Ending Address Register 4 .............2-41
Local Bus Slave (VMEbus Master) Starting Address Register 4 ............2-42
Local Bus Slave (VMEbus Master)
Address Translation Address Register 4 ..........................................2-42
Local Bus Slave (VMEbus Master)
Address Translation Select Register 4 .............................................2-42
Local Bus Slave (VMEbus Master) Attribute Register 4 .........................2-43
Local Bus Slave (VMEbus Master) Attribute Register 3 .........................2-44
Local Bus Slave (VMEbus Master) Attribute Register 2 .........................2-45
Local Bus Slave (VMEbus Master) Attribute Register 1 .........................2-46
VMEbus Slave GCSR Group Address Register ......................................2-47
VMEbus Slave GCSR Board Address Register .......................................2-48
Local-Bus-to-VMEbus Enable Control Register .....................................2-49
Local-Bus-to-VMEbus I/O Control Register ...........................................2-50
ROM Control Register .............................................................................2-51
Programming the VMEchip2 DMA Controller................................................2-51
DMAC Registers..............................................................................................2-53
EPROM Decoder, SRAM and DMA Control Register ...........................2-53
Local-Bus-to-VMEbus Requester Control Register ................................2-54
DMAC Control Register 1 (bits 0-7) .......................................................2-55
DMAC Control Register 2 (bits 8-15) .....................................................2-57
DMAC Control Register 2 (bits 0-7) .......................................................2-58
DMAC Local Bus Address Counter .........................................................2-59
DMAC VMEbus Address Counter ..........................................................2-60
DMAC Byte Counter ...............................................................................2-60
Table Address Counter .............................................................................2-60
VMEbus Interrupter Control Register ......................................................2-61
VMEbus Interrupter Vector Register .......................................................2-62
MPU Status and DMA Interrupt Count Register .....................................2-62
DMAC Status Register .............................................................................2-63
Programming the Tick and Watchdog Timers..................................................2-64
VMEbus Arbiter Time-Out Control Register ..........................................2-64
DMAC Ton/Toff Timers and VMEbus
Global Time-out Control Register.....................................................2-65