PPC7A Product Manual
Contents
Contents iii
1
st
Edition
Hard Reset.....................................................................................................................................8-4
Soft Reset ......................................................................................................................................8-5
VMEbus Remote Reset.................................................................................................................8-5
Watchdog Reset ............................................................................................................................8-5
Memory ....................................................................................................................................................8-6
Controller ......................................................................................................................................8-6
Maps..............................................................................................................................................8-6
SDRAM ........................................................................................................................................8-6
FLASH..........................................................................................................................................8-7
VME Programming Option...........................................................................................................8-8
JTAG........................................................................................................................................................8-9
JTAG Clock Frequencies ............................................................................................................8-10
JTAG and PMC...........................................................................................................................8-10
PCI Buses ...............................................................................................................................................8-11
Memory/PCI Bridge....................................................................................................................8-11
Ethernet Controller......................................................................................................................8-12
SCSI Scripts Processor ...............................................................................................................8-12
VGA graphics Processor.............................................................................................................8-12
Universe II ..................................................................................................................................8-12
South Bridge ...............................................................................................................................8-13
PMC Sites ...................................................................................................................................8-13
South Bridge Peripheral Components ....................................................................................................8-13
Floppy Disk Controller ...............................................................................................................8-13
Serial I/O.....................................................................................................................................8-13
Parallel I/O ..................................................................................................................................8-13
Keyboard and Mouse Controller.................................................................................................8-14
VMEbus Interface ..................................................................................................................................8-14
VMEbus Master Access..............................................................................................................8-14
VMEbus Slave Access ................................................................................................................8-15
Indivisible Cycles on VME.........................................................................................................8-15
VMEbus Arbitration ...................................................................................................................8-15
VMEbus Master Block Transfers ...............................................................................................8-15
VMEbus Slave Block Transfers..................................................................................................8-15
Mailboxes....................................................................................................................................8-15
Semaphore Register ....................................................................................................................8-16
VMEbus Location Monitor.........................................................................................................8-16
VMEbus Interrupts......................................................................................................................8-16
VME Bus Errors .........................................................................................................................8-16
VMEbus Retries..........................................................................................................................8-17
VMEbus Reset Options...............................................................................................................8-17
Watchdog Timers ...................................................................................................................................8-17
Software Programmable LEDs...............................................................................................................8-18
Control and Status Registers ..................................................................................................................8-19
Memory Configuration Register (Port 0x0804)..........................................................................8-20
Memory Configuration Extend Register (Port 0x0806)..............................................................8-21
SCSI Activity LED Register (Port 0x0808)................................................................................8-22
Equipment Present Register 1 (Port 0x080C) .............................................................................8-22
Equipment Present Register 2 (Port 0x080E) .............................................................................8-23
Equipment Present Register 3 (Port 0x0810)..............................................................................8-24
Key Lock Register (Port 0x0818) ...............................................................................................8-24
LED Register (Port 0x0820) .......................................................................................................8-25
COMs Register (Port 0x0824) ....................................................................................................8-26
RTS Register (Port 0x0826)........................................................................................................8-27
Watchdog Register (Port 0x0828) ..............................................................................................8-27
Watchdog Trig (Port 0x082C) ....................................................................................................8-28
Board Revision Register (Port 0x0854) ......................................................................................8-28
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