System I/O Addresses
Table 30 shows the location in I/O space of all directly
Table 30. System I/O Addresses
I/O Address
0000 – 001F
0020 – 0021
0022 – 0040
0040 – 005F
0060 & 0064
0061
0070
0071
0072
0073
0080 – 008F
0092
00A0 – 00A1
00B2
00B3
00F0
Resource
DMA controller
Interrupt controller 1
Unused/reserved
Programmable timer
Keyboard controller
NMI status & control register
NMI mask bit and RTC index address
RTC
RTC extended index register
RTC extended data register
DMA low page register
Port 92 register
Interrupt controller 2
Advanced pwr management control
Advanced power management status
DMA controller
Coprocessor error
I/O Address
0170 – 0177
01F0 – 01F7
0278 – 027F
02E8 – 02EF
02F8 – 02FF
0370 – 0377
0378 – 037F
03BC – 03BF
03E8 – 03EF
03F8 – 03FF
0CF8
0CFC
0CF9
04D0 – 04D1
0C00 – 0C7F
0CA8 – 0CAF
0CC0 – 0CCF
2000 – FFFF
Resource
Secondary IDE controller
Primary IDE controller
Parallel port 2 (relocatable)
Serial port 4 (relocatable)
Serial port 2 (relocatable)
Secondary diskette
Parallel port 1 (relocatable)
Parallel port 3
Serial port 2 (relocatable)
Serial port 1 (relocatable)
PCI config address register
PCI data address register
Reset control
INTC edge/level register
Pwr management base address
SMIC decoder
SM base address
Allocated to the PCI devices
SRPL8 Server System Product Guide | 185 |
