Compaq AP500 User Manual
Page 138
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Compaq Professional Workstation AP500 Maintenance and Service Guide
System I/O
Continued
I/O Address (Hex)
System Function (Shipping Configuration)
201
Audio
202 - 21F
Unused
220 - 22F
Audio (Alternate = 240- 24F, 260 - 26F, or 280 - 28F)
230 - 273
Unused
274 - 277
ISA PnP
278 - 27F
Reserved parallel port
280 - 2E7
Unused
2E8 - 2EF
Reserved serial port
2F0 - 2F7
Unused
2F8 - 2FF
Serial port
300 - 32F
Unused
330 - 331
Audio
332 - 36F
Unused
370 - 377
Reserved - fixed disk controller
378 - 37F
Parallel port (primary)
380 - 387
Unused
388 - 38B
Audio
38C - 397
Unused
398 - 399
Motherboard
39A - 3AF
Unused
3B0 - 3BB
MDA, EGA/VGA
3BC - 3BF
Reserved (parallel port)
3C0 - 3DF
EGA/VGA
3E0 - 3E7
Unused
3E8 - 3EF
Reserved (serial port)
3F0 - 3F7
Diskette controller
3F8 - 3FF
Serial port (primary)