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Table 6-4
System I/O
continued
I/O Address (Hex)
092
093 - 09F
0A0 - 0BF
0C0 - 0DF
0E0 - 0EB
0EC - 0ED
0EE - 0EF
0F0 - 0F1
0F2 - 0F3
0F4 - 0F5
0F6 - 0F8
0F9
0FA
0FB
0FC - 0FF
100 - 12F
130 - 131
132 - 16F
170 - 177
178 - 1EF
1F0 - 1F7
1F8 - 1FF
200
201
202 - 21F
220 - 22F
230 - 277
238 - 2EF
278 - 27F
280 - 2E7
System Function (Shipping Configuration)
Port A
Unused
Interrupt controller # 2
DMA controller # 2
Unused
483 configuration index/data
483 fast A20/fast reset
Coprocessor busy clear/reset
Unused
483 CPU speed slow/fast
Unused
483/PGL configuration lock
Unused
483/PGL configuration unlock
Unused
Unused
Modem PGL index/data (default; alternate = 140h, 260h, 270h)
Unused
Reserved; IDE controller can be set during Setup.
Unused
Fixed disk controller
Unused
Unused
Unused
Unused
Business Audio (default; alternate = 230h, 240h, 250h)
Unused
Reserved serial port
Reserved parallel port
Unused
Specifications 6-5
continued
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