RadiSys EPC-8A Application guide

EPC-8A
Hardware Reference
RadiSys Corporation
5445 NE Dawson Creek Drive
Hillsboro, OR 97124
[phone]
FAX: [phone]
www.radisys.com
07-0961-01 December 1998

EPC-8A Hardware Reference
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EPC, INtime, and RadiSys are registered trademarks of RadiSys Corporation.
† All other trademarks, registered trademarks, service marks, and trade names are the
property of their respective owners.
December 1998
Copyright 1998 by RadiSys Corporation
All rights reserved.

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Before you begin
This guide describes the EPC-8A, a highly integrated PC-compatible computer designed
specifically for use in the VMEbus and extended VMEbus (VXIbus) environments.
About this guide
This guide explains how to install, configure, and troubleshoot the EPC-8A, and describes
the EPC-8A and how it works.
Guide contents
Chapters
Appendices
Chapter Description
1 Product description Provides an overview and specifications for the EPC-8A
2 Configuration and Installation Explains how to configure and install the EPC-8A.
3 BIOS Configuration Details the various menus and sub-menus used to
configure the system using the Phoenix BIOS.
4 Theory of Operation Explains how the EPC-8A works.
5 Programming the
VMEbus Interface Describes the EPC-8A VMEbus interface as seen by a program
Appendix Description
A Chipset and I/O Map Defines the I/O addresses decoded by the EPC-8A
B Interrupts and DMA Channels Lists the EPC-8A’s interrupt assignments.
C Connectors Specifies the EPC-8A’s connector details.
D Memory Lists the EPC-8A’s SIMM specifications.
E Subplanes Describes how to install subplanes in the EPC-8A.
F Registers Defines registers in the I/O space specific to the EPC-8A.
G XFORMAT Software for
the EPC-8A Explains when to use the XFORMAT utility.
H AUTOSET Software Describes how to use the AUTOSET program to
configure the Ethernet controller.
I SVGA Provides operating instructions for user utilities and
installation instructions for the display drivers supplied
with your Chips and Technologies SVGA for the EPC-8A

EPC-8A Hardware Reference
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Notational conventions
This manual uses the following conventions:
• All numbers are decimal unless otherwise stated.
• Bit 0 is the low-order bit. If a bit is set to 1, the associated description is true unless
otherwise stated.
• Data structures and syntax strings appear in this font.
Where to get more information
You can find out more about the EPC-8A from these sources:
•Readme file: Lists features and issues that arose too late to include in
other documentation.
•RadiSys web site: Go to www.radisys.com
J Error Messages and Diagnosis Provides troubleshooting information in these areas:
• Problems that do not display an error message.
• Beep codes (audible codes consist of patterns of
beeps and pauses).
• Error and warning messages.
K Configuring the Ethernet Drivers Provides instructions for configuring network interface
drivers after you install the EPC-8A.
Notes indicate important information
about the product. Cautions indicate situations that may result in damage to data or the
hardware.
Tips indicate alternate techniques
or procedures that you can use to
save time or better understand
the product.
Warnings indicate situations that may
result in physical harm to you or the
hardware.
Appendix Description

v
Contents
Chapter 1: Product description
Overview........................................................................................................................................................... 1
VMEbus............................................................................................................................................................ 2
System controller functions....................................................................................................................... 2
VMEbus master interface.......................................................................................................................... 2
VMEbus extended register set................................................................................................................... 3
Specifications.................................................................................................................................................... 3
Chapter 2: Configuration and Installation
Before you begin............................................................................................................................................... 5
Configuring the EPC-8A .................................................................................................................................. 5
Slot-1 Functionality................................................................................................................................... 5
Selecting the EPC-8A Slot Location ................................................................................................................ 6
Installing the VMEbus Backplane Jumpers...................................................................................................... 7
EPC-8A Insertion.............................................................................................................................................. 9
Connecting Peripherals to the EPC-8A ........................................................................................................... 10
Remaining Steps ............................................................................................................................................... 10
Chapter 3: BIOS Configuration
BIOS Setup Screens.......................................................................................................................................... 11
Main BIOS Setup Menu ................................................................................................................................... 12
IDE Adapter Sub-Menus ........................................................................................................................... 13
Memory Cache Sub-Menu......................................................................................................................... 15
Memory Shadow Sub-Menu...................................................................................................................... 16
About Shadow Memory Regions ....................................................................................................... 16
Boot Sequence Sub-Menu......................................................................................................................... 17
Keyboard Features Menu........................................................................................................................... 19
Advanced Menu................................................................................................................................................ 20
Integrated Peripherals Sub-Menu.............................................................................................................. 22
EXM Menu ....................................................................................................................................................... 23
VME Menu ....................................................................................................................................................... 25
Exit Menu ......................................................................................................................................................... 26
Chapter 4: Theory of Operation
Overview........................................................................................................................................................... 29
Processor board................................................................................................................................................. 30
Processor and Coprocessor........................................................................................................................ 30
Memory...................................................................................................................................................... 31
Memory Map...................................................................................................................................... 31
BIOS ROM and ROM Shadowing............................................................................................................ 31
CMOS Backup and Restore................................................................................................................ 32
Video Controller........................................................................................................................................ 32
Ethernet Controller .................................................................................................................................... 33

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Resident Flash/SRAM Memory ................................................................................................................ 33
Resident Flash Memory...................................................................................................................... 33
SRAM................................................................................................................................................. 33
Watchdog Timer........................................................................................................................................ 33
Battery........................................................................................................................................................ 34
Peripheral Ports.......................................................................................................................................... 35
RS-232 Port........................................................................................................................................ 35
RS-422/485 Port................................................................................................................................. 35
Parallel Port........................................................................................................................................ 35
Keyboard ............................................................................................................................................ 35
Front Panel LEDs ...................................................................................................................................... 35
Resetting the EPC-8A................................................................................................................................ 36
Power-off, Power-on .......................................................................................................................... 36
Power low........................................................................................................................................... 36
Front-panel Reset button .................................................................................................................... 36
Ctrl+Alt+Del ...................................................................................................................................... 37
VMEbus SYSRESET......................................................................................................................... 37
Watchdog Timer................................................................................................................................. 37
Register State after Reset........................................................................................................................... 37
VME/VXI Soft RESET state and SYSRESET.......................................................................................... 37
Signal Register FIFO ........................................................................................................................................ 38
EXM Expansion Interface ................................................................................................................................ 38
VME Interface .................................................................................................................................................. 39
Connectivity............................................................................................................................................... 39
VMEbus System (Slot-1) Controller Functions ........................................................................................ 39
VMEbus Access......................................................................................................................................... 39
Byte Ordering ............................................................................................................................................ 40
VMEbus Interrupt Response...................................................................................................................... 41
VME Extension Registers (VXI)............................................................................................................... 41
Passing VME Interrupts and Events to the CPU .............................................................................................. 42
Chapter 5: Programming the VMEbus Interface
Concepts............................................................................................................................................................ 43
Atomic access............................................................................................................................................ 43
Read-Modify-Write Operations................................................................................................................. 43
Setting the VMEbus Access Bit........................................................................................................................ 44
Real-Mode “E-page” VMEbus Accesses.......................................................................................................... 44
Supported Address Modifiers........................................................................................................................... 45
Low-Level Programming “E” Page Accesses .................................................................................................. 45
Example #1................................................................................................................................................ 45
Example #2................................................................................................................................................ 46
Low-Level Handling of VMEbus Interrupts ............................................................................................. 47
Start of Loop....................................................................................................................................... 48
Protected-Mode Direct VMEbus Accesses....................................................................................................... 48
Generating IACKs in Protected Mode.............................................................................................................. 49
Programming the Watchdog Timer .................................................................................................................. 50
Appendix A: Chipset and I/O Map................................................................................................................. 51
Appendix B: Interrupts and DMA Channels
Interrupts........................................................................................................................................................... 57
DMA Channels ................................................................................................................................................. 57

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Appendix C: Connectors
RS-232 Port (COM1)........................................................................................................................................ 59
RS-422/485 Port (COM2)................................................................................................................................. 59
Parallel Port....................................................................................................................................................... 60
Keyboard........................................................................................................................................................... 60
VGA.................................................................................................................................................................. 61
Ethernet............................................................................................................................................................. 61
Appendix D: Memory
Memory............................................................................................................................................................. 63
Appendix E: Subplanes
Subplane Installation......................................................................................................................................... 65
EXP-BP1 Subplane.................................................................................................................................... 65
EXP-BP2 Subplane.................................................................................................................................... 66
EXP-BP4 Subplane.................................................................................................................................... 67
EXP-BP3A Subplane................................................................................................................................. 68
EXP-BP5 Subplane.................................................................................................................................... 69
EXP-BP4A Subplane................................................................................................................................. 70
EXP-BP6 Subplane.................................................................................................................................... 71
Appendix F: Registers
Registers Specific to the EPC-8A..................................................................................................................... 73
Configuration (8102h) ...................................................................................................................................... 74
VME A21–16 Address Register (8130h).......................................................................................................... 75
ID Register (8140h and 8141h) ........................................................................................................................ 75
Device Type Register (8142h and 8143h)........................................................................................................ 75
Status/Control Register (8144h and 8145h)...................................................................................................... 75
Reserved (8146h and 8147h) ............................................................................................................................ 76
Protocol Register/Signal FIFO (8148h and 8149h).......................................................................................... 77
Response Register (814Ah and 814Bh)............................................................................................................ 77
Reserved (814C and 814D)............................................................................................................................... 79
Message Low Register (814Eh and 814Fh)...................................................................................................... 79
VME A31–24 Address Register (8150h).......................................................................................................... 79
VME Modifier Register (8151h) ...................................................................................................................... 79
VME Interrupt State Register (8152h).............................................................................................................. 80
VME Interrupt Enable Register (8153h) .......................................................................................................... 80
VME Event State Register (8154h).................................................................................................................. 80
VME Event Enable Register (8155h)............................................................................................................... 80
VME Interrupt Generator Register (8158h)...................................................................................................... 81
Unique Logical Address Register (815Ch)....................................................................................................... 81
Module Status/Control Register (815Dh)......................................................................................................... 81
VMEbus Mapped Registers.............................................................................................................................. 82
Appendix G: XFORMAT Software for the EPC-8A
XFORMAT Software ....................................................................................................................................... 83
Appendix H: AUTOSET Software
AUTOSET Software......................................................................................................................................... 85
Installing the Software...................................................................................................................................... 85
Using the AUTOSET Program.................................................................................................................. 85
Novell Configuration................................................................................................................................. 87
I/O Base Address....................................................................................................................................... 87
Adapter Architecture ................................................................................................................................. 88
Interrupts.................................................................................................................................................... 88

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Adapter Architecture ................................................................................................................................. 88
Boot PROM............................................................................................................................................... 89
Configuring Additional Ethernet Controllers............................................................................................ 89
Diagnostics ................................................................................................................................................ 90
Error Messages .......................................................................................................................................... 90
Appendix I: SVGA
Video Controller Hardware .............................................................................................................................. 93
Display Drivers and Utilities ............................................................................................................................ 93
Introduction....................................................................................................................................................... 93
Before you begin........................................................................................................................................ 94
Notational conventions.............................................................................................................................. 94
Easy installation......................................................................................................................................... 94
Windows 95 installation..................................................................................................................... 94
Windows 3.x installation.................................................................................................................... 94
Chips and Technologies web site .............................................................................................................. 94
Utility software ................................................................................................................................................. 95
Microsoft Windows 3.1 .................................................................................................................................... 95
Before upgrading from a previous release................................................................................................. 95
Microsoft Windows 95 ..................................................................................................................................... 96
Driver Installation Procedure..................................................................................................................... 96
OSR2 Driver Installation Procedure.......................................................................................................... 96
Appendix J: Error Messages and Diagnosis
Troubleshooting................................................................................................................................................ 99
BIOS Beep Codes............................................................................................................................................. 100
Common Error Messages.................................................................................................................................. 100
Appendix K: Configuring the Ethernet Drivers
NetWare IPX Driver for DOS Installation ....................................................................................................... 105
ODI Driver for DOS Installation ...................................................................................................................... 105
NDIS Driver for DOS Installation.................................................................................................................... 106
Packet Driver Installation ................................................................................................................................. 107
Windows NT Driver Installation ...................................................................................................................... 107
Index....................................................................................................................................................................... 109

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Figures
Figure 2-1. Jumper Locations................................................................................................................................ 6
Figure 2-2. Daisy-Chain Signal Concept .............................................................................................................. 7
Figure 2-3. Backplane Jumpers Required for EPC-8A Subsystem....................................................................... 8
Figure 2-4. VMEbus Jumpers on Rear Wirewrap Pins......................................................................................... 9
Figure 2-5. VMEbus Jumpers on Front Stake Pins............................................................................................... 9
Figure 3-1. Main menu.......................................................................................................................................... 12
Figure 3-2. IDE Adapter sub-menu....................................................................................................................... 13
Figure 3-3. Memory Shadow sub-menu................................................................................................................ 15
Figure 3-4. Memory Shadow sub-menu................................................................................................................ 16
Figure 3-5. Boot Sequence sub-menu ................................................................................................................... 17
Figure 3-6. Keyboard features sub-menu.............................................................................................................. 19
Figure 3-7. Advanced menu.................................................................................................................................. 20
Figure 3-8. Integrated Peripherals sub-menu........................................................................................................ 22
Figure 3-9. EXM menu ......................................................................................................................................... 23
Figure 3-10. Slot Numbering .................................................................................................................................. 24
Figure 3-11. VME menu ......................................................................................................................................... 25
Figure 3-12. Exit menu............................................................................................................................................ 26
Figure 4-1. Block Diagram.................................................................................................................................... 30
Figure 4-2. Flash Boot Device Memory................................................................................................................ 32
Figure 4-3. Using little-endian byte ordering........................................................................................................ 40
Figure 4-4. Using big-endian byte ordering.......................................................................................................... 41
Figure 4-5. Passing VME interrupts and events to the CPU................................................................................. 42
Figure E-1. EXP-BP1 Subplane ............................................................................................................................ 65
Figure E-2. EXP-BP2 Subplane ............................................................................................................................ 66
Figure E-3. EXP-BP4 Subplane ............................................................................................................................ 67
Figure E-4. EXP-BP3A Subplane.......................................................................................................................... 68
Figure E-5. EXP-BP5 Subplane ............................................................................................................................ 69
Figure E-6. EXP-BP4A Subplane.......................................................................................................................... 70
Figure E-7. EXP-BP6 Subplane ............................................................................................................................ 71
Figure H-1. AUTOSET Program Main Menu....................................................................................................... 86
Figure H-2. Manual Configuration Menu.............................................................................................................. 86

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Tables
Table 1-1. EPC-8A Environmental Specifications.............................................................................................. 3
Table 1-2. Additional EPC-8A Specifications..................................................................................................... 3
Table 2-1. VME Slots Available.......................................................................................................................... 7
Table 4-1. Memory at addresses between 0 and 1MB (0FFFFFh)...................................................................... 31
Table 4-2. Extended memory address space for a 4MB EPC-8A........................................................................31
Table 4-3. Reset Conditions................................................................................................................................. 36
Table 5-1. Supported Address Modifiers............................................................................................................. 45
Table 5-2. VME access type................................................................................................................................ 49
Table A-1. First (8-bit) DMA controller: RadiSys R400EX chip emulating 8237 of PC⁄AT.............................. 51
Table A-2. First Interrupt controller: RadiSys R400EX emulating 8259 of PC/AT............................................ 51
Table A-3. R400EX controller.............................................................................................................................. 51
Table A-4. Counter-Timer functions: RadiSys R400EX emulating 8254 of PC⁄AT............................................ 52
Table A-5. Keyboard Port: RadiSys R400EX emulating 8742 of PC/AT............................................................ 52
Table A-6. Time-of-Day Clock: RadiSys R400EX emulating MC146818 of PC⁄AT.......................................... 52
Table A-7. DMA Page Registers: RadiSys R400EX emulating 74LS612 of PC/AT .......................................... 52
Table A-8. Port A.................................................................................................................................................. 53
Table A-9. EXM Configuration............................................................................................................................ 53
Table A-10. Second Interrupt Controller: RadiSys R400EX emulating 8259 of PC⁄AT....................................... 53
Table A-11. Second (16-bit) DMA Controller: RadiSys R400EX emulating 8237 of PC⁄AT............................... 53
Table A-12. Coprocessor Interface: For the EPC-8A DX, DX replaces the 80287 of PC⁄AT............................... 54
Table A-13. EXM Configuration............................................................................................................................ 54
Table A-14. Ethernet............................................................................................................................................... 54
Table A-15. Serial I/O (Com2) Port: National Semiconductor PC87336 emulating 8251 of PC⁄AT.................... 54
Table A-16. Parallel I/O (LPT1) Port: National Semiconductor PC87336 emulating 8255 of PC⁄AT.................. 54
Table A-17. VGA ................................................................................................................................................... 54
Table A-18. Serial I/O (Com1) Port: National Semiconductor PC87336 emulating 8552 of PC/AT.................... 55
Table A-19. EPC Registers..................................................................................................................................... 55
Table A-20. VME Registers ................................................................................................................................... 55
Table A-21. VXI, VME/Misc., and On-board EXM-2A Registers........................................................................56
Table B-1. Interrupts............................................................................................................................................. 57
Table B-2. DMA Channels................................................................................................................................... 57
Table C-1. DB-9 Pin-Out...................................................................................................................................... 59
Table C-2. COM2 RS-422/RS485 Port Pin-out ................................................................................................... 59
Table C-3. DB-25 Pin-out .................................................................................................................................... 60
Table C-4. Keyboard Pin-out................................................................................................................................ 60
Table C-5. DB-15 Pin-out .................................................................................................................................... 61
Table C-6. RJ45 Phone Jack Pin-out.................................................................................................................... 61
Table I-1. Notational Conventions...................................................................................................................... 94
Table J-1. Troubleshooting Error Messages........................................................................................................ 99
Table J-2. BIOS Troubleshooting Beep Codes ................................................................................................... 100