Specifications
EPC-6A Hardware Reference
iv
Read-Modify-Write Operations................................................................................................................. 25
VMEbus Interrupt Handler ............................................................................................................................... 26
VMEbus Interrupt Response............................................................................................................................. 27
VMEbus Mapped Registers.............................................................................................................................. 28
Chapter 5: Theory of Operation
Processor, Coprocessor, and Memory .............................................................................................................. 29
Application Flash Memory or RFA.................................................................................................................. 29
Flash Boot Device............................................................................................................................................. 30
Nonvolatile SRAM Memory ............................................................................................................................ 30
Battery............................................................................................................................................................... 30
Interrupts........................................................................................................................................................... 31
Watchdog Timer ............................................................................................................................................... 31
EXMbus............................................................................................................................................................ 31
VMEbus Interface............................................................................................................................................. 32
VMEbus System Controller Functions............................................................................................................. 32
VMEbus Timing ............................................................................................................................................... 33
Chapter 6: Error Messages
Seven-Segment Display Codes......................................................................................................................... 35
Phoenix NuBIOS Checkpoints ......................................................................................................................... 36
Support Software .............................................................................................................................................. 39
Chapter 7: Support and Service
In North America.............................................................................................................................................. 41
Technical Support...................................................................................................................................... 41
World Wide Web....................................................................................................................................... 41
Repair Services.......................................................................................................................................... 41
Warranty Repairs................................................................................................................................ 42
Non-Warranty Services ...................................................................................................................... 42
Arranging Service............................................................................................................................... 42
Other Countries.......................................................................................................................................... 43
Appendix A: Connectors
Front Panel LEDs.............................................................................................................................................. 45
Speaker Connector............................................................................................................................................ 45
Keyboard Connector......................................................................................................................................... 46
Serial port connectors ....................................................................................................................................... 46
VMEbus Connectors......................................................................................................................................... 46
Appendix B: About the Flash Boot Device
Forced recovery ................................................................................................................................................ 48
When to Reflash the FBD.......................................................................................................................... 49
Before You Begin............................................................................................................................... 49
Reflashing Processes .......................................................................................................................... 49
Force Update ...................................................................................................................................... 49
Appendix C: Registers
Overview........................................................................................................................................................... 54
Memory Control Register (81004h) ................................................................................................................. 54
VME A21–16 Address Register (8130h).......................................................................................................... 55
ID Registers (8140h and 8141h)....................................................................................................................... 55
Device Type Registers (8142h and 8143h)....................................................................................................... 55
Status/Control Registers (8144h and 8145h).................................................................................................... 55
Slave Offset Registers (8146h and 9147H) ...................................................................................................... 56
Protocol Registers (8148h and 8149h).............................................................................................................. 57