Manual VIPA PC-CPU 486
Chapter 3 BIOS / Register
HB111E - Rev. 02/32
3-11
Register description
The following addresses are occupied by VIPA:
CPU side
270h - 277h
Watchdog
280h - 28Fh
Control register I
280h - 281h
reserved
282h
LED Control
Bit 0 = "0" RUN LED off, "1" RUN LED on
Bit 1 = "0" STOP LED off, "1" STOP LED on
283h - 284h
reserved
285h
EEPROM Port
286h - 28Dh
reserved
28Eh
Version
28Fh
Device ID = 88h
290h - 297h
Control register II
290h
Watchdog timer value
291h
reserved
292h
C165 Control register
293h
Enable register for Watchdog timer value
294h - 295h
reserved
296h
CPU Control
297h
CPU Mode
298h - 29Fh
Register for page frame communication
298h
Operation mode (read/write)
299h
Status register (control)
29Ah
3FD - Interrupt register (IRQ Req/Ack)
29Bh
3FF - Interrupt register (IRQ Req/Ack)
29Ch
Page frame base register (read/write)
29Dh
Page frame select register (read only)
29Eh
Revision ID register (read only)
29Fh
Device ID register (read only)
Address range
Содержание PC-CPU 486
Страница 1: ...Subject to change to cater for technical progress Manual VIPA PC CPU 486 Ord No VIPA HB111E Rev 02 32...
Страница 2: ...Lerrzeichen...
Страница 6: ...Content Manual VIPA PC CPU 486 ii HB111E Rev 02 32...
Страница 14: ...Chapter 1 Principles Manual VIPA PC CPU 486 1 6 HB111E Rev 02 32...
Страница 26: ...Chapter 2 Hardware description Manual VIPA PC CPU 486 2 12 HB111E Rev 02 32...
Страница 44: ...Chapter 3 BIOS Register Manual VIPA PC CPU 486 3 18 HB111E Rev 02 32...
Страница 64: ...Index Manual VIPA PC CPU 486 A 2 HB111D Rev 02 32 M Stich...