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1-20 Service Guide
Table 1-10 I/O Address Map
Address Range Device
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
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
Keyboard controller 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
Parallel port 2
FM synthesizer
Parallel port 1
Video subsystem
Video DAC
Enhanced graphics display
Color graphics adapter
COM3
Floppy disk controller
COM 1 -Serial 1
PCI configuration register
1.6.4 DMA Channel Map
Table 1-11 DMA Channel Map
Controller Channel Address Function
1
1
1
1
2
2
2
2
0
1
2
3
4
5
6
7
0087
0083
0081
0082
Cascade
008B
0089
008A
Audio(default) / IrDA(option)
Audio(default) / ECP(option) / IrDA(option)
Diskette
Audio (option) / FIR IrDA(option) / ECP(option)
Cascade
Spare