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CHAPTER 2 Operating Instructions
Introduction ...............................................................................................................2-1
Applying Power.........................................................................................................2-1
ABORT Switch (S1)...........................................................................................2-1
RESET Switch (S2)............................................................................................2-2
Front Panel Indicators (DS1 - DS6)...................................................................2-3
Memory Maps............................................................................................................2-4
MPU Bus Memory Map.....................................................................................2-4
Normal Address Range...............................................................................2-4
PCI Local Bus Memory Map .............................................................................2-9
VMEbus Memory Map ....................................................................................2-10
Programming Considerations ..................................................................................2-17
PCI Arbitration.................................................................................................2-18
Interrupt Handling............................................................................................2-20
Machine Check Interrupt (MCP*) ............................................................2-21
Maskable Interrupts...................................................................................2-21
VMEchip2 Interrupts ................................................................................2-23
Z8536 and Z85230 Interrupts....................................................................2-23
DMA Channels.................................................................................................2-24
Sources of Reset ...............................................................................................2-24
Endian Issues....................................................................................................2-25
Processor/Memory Domain ......................................................................2-25
PCI Domain...............................................................................................2-28
VMEbus Domain ......................................................................................2-28
CHAPTER 3 Functional Description
Introduction ...............................................................................................................3-1
Features......................................................................................................................3-1
General Description...................................................................................................3-3
Block Diagram...........................................................................................................3-4
SCSI Interface ....................................................................................................3-6
SCSI Termination........................................................................................3-6
Ethernet Interface...............................................................................................3-7
Graphics Interface ..............................................................................................3-8
PCI Mezzanine Interface....................................................................................3-9
VMEbus Interface ............................................................................................3-10
ISA Super I/O Device (ISASIO)......................................................................3-10
Asynchronous Serial Ports ........................................................................3-10
Parallel Port...............................................................................................3-11
Disk Drive Controller................................................................................3-12