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System Introduction 1-15
1
1
1
2
2
2
2
1
2
3
4
5
6
7
0083
0081
0082
Cascade
008B
0089
008A
Audio
Diskette
Audio (option)/ECP(option)
Cascade
-
Spare
-
1.4.4 I/O Address Map
Table 1-10 I/O Address Map
Address Range Device
000 - 00F
020 - 021
040 - 043
048 - 04B
060 - 064
070 - 071
080 - 08F
0A0 - 0A1
0C0 - 0DF
170 - 177
178, 17A
1F0 - 1F7
3F6, 3F7
220 - 22F, 240 - 24F
300 - 301, 330 - 331
370 - 371, 388 - 38F
530 - 537, E80 - E89
278 - 27F
2E8 - 2EF
2F8 - 2FF
378, 37A
3BC - 3BE
3B4, 3B5, 3BA
3C0 - 3C5
3C6 - 3C9
3C0 - 3CF
3D0 - 3DF
3E0 - 3E1
3E8 - 3EF
3F0 - 3F7
3F8 - 3FF
CF8 - CFF
DMA controller-1
Interrupt controller-1
Timer 1
Timer 2
Keyboard controller 38802 chip select
Real-time clock and NMI mask
DMA page register
Interrupt controller-2
DMA controller-2
CD-ROM
M7101 registers
Hard disk select
Audio (option) - default
Audio (option)
Audio (option)
Audio (option)
Parallel port 3
COM 4
COM 2
Parallel port 2
Parallel port 1
Video subsystem
Video DAC
Enhanced graphics display
Color graphics adapter
PCMCIA controller
COM3
Floppy disk controller
COM 1
PCI configuration register