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B-2 User’s Manual
B.2 I/O Address Map
Address Range Device
000 - 00F
020 - 021
024, 026, B0h
02E - 02F
040 - 043
048 - 04B
060 - 06E
070 - 071
080 - 08F
0A0 - 0A1
0C0 - 0DF
1F0 - 1F7
3F6 - 3F7
170 - 177
376 - 377
220 - 22F
240 - 24F
260 - 26F
280 - 28F
278 - 27F
2E8 - 2EF
2F8 - 2FF
300 - 301
310 - 311
320 - 321
330 - 321
34C - 34F
378 - 37F
388 - 38B
3BC - 3BE
3B4, 3B5, 3BA
3C0 - 3C5
3C6 - 3C9
3C0 - 3CF
3D0 - 3DF
3E8 - 3EF
3F0 - 3F7
3F8 - 3FF
CF8 - CFF
DMA controller-1
Interrupt controller-1
PicoPower chipset registers
CMD0643 IDE controller
Timer 1
Timer 2
Keyboard controller 8742 chip select
Real-time clock and NMI mask
DMA page register
Interrupt controller-2
DMA controller-2
Hard disk select
Hard disk select
CD-ROM select
CD-ROM select
Audio
Audio - default
Audio
Audio
Parallel port 3
COM 4
COM 2 - IrDA
MPU-401 port - default
MPU-401 port
MPU-401 port
MPU-401 port
Docking station
Parallel port 2
FM synthesizer
Parallel port 1
Video subsystem
Video DAC
Enhanced graphics display
Color graphics adapter
COM3 - Modem
Floppy disk controller
COM 1 - Serial 1
PCI configuration register