Compaq PC X1000 User Manual
Specifications
Maintenance and Service Guide
6–15
I/O Address
(hex)
(hex)
System Function
(shipping configuration)
(shipping configuration)
0A2 - 0BF
Unused
0C0 - 0DF
DMA controller no. 2
0E0 - 0EF
Unused
0F0 - 0F1
Coprocessor busy clear/reset
0F2 - 0FF
Unused
100 - 16F
Unused
170 - 177
Secondary fixed disk controller
178 - 1EF
Unused
1F0 - 1F7
Primary fixed disk controller
1F8 - 200
Unused
201
Joystick (decoded in ESS1688)
202 - 21F
Unused
220 - 22F
Entertainment audio
230 - 26D
Unused
26E - 26
Unused
278 - 27F
Unused
280 - 2AB
Unused
2A0 - 2A7
Unused
2A8 - 2E7
Unused
2E8 - 2EF
Reserved serial port
Table 6-14
System I/O Addresses
(Continued)
325388-002.book Page 15 Friday, October 24, 2003 9:21 AM