68
5-2 I/O Map
000-01F
DMA controller (master)
020-021
Interrupt controller (master)
022-023
Chipset control registers. I/O ports
040-05F
Timer control registers
060-06F
Keyboard interface controller (8042)
070-07F
RTC ports & CMOS I/O ports
080-09F
DMA register
0A0-0BF
Interrupt controller (slave)
0C0-0DF
DMA controller (slave)
0F0-0FF
Math coprocessor
1F0-1FB
Hard disk controller
278-27F
Parallel port 2
2B0-2DF
Graphics adapter controller
2F8-2FF
Serial port 2
360-36F Network
ports
378-37F
Parallel port 1
3B0-3BF Monochrome & parallel port adapter
3C0-3CF
EGA adapter
3D0-CDF
CGA adapter
3F0-3F7
Floppy disk controller
3F8-3FF Serial port-1