User manual

IPPC-6152A Series User Manual 68
Appendix B System Assignments
B.1 System I/O Ports
Addr. Range (Hex) Device
000-01F DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-05F 8254 timer
060-06F 8042 (keyboard controller)
070-07F Real-time clock, non-maskable interrupt (NMI) mask
080-09F DMA page register
0A0-0BF Interrupt controller 2
0C0-0DF DMA controller
0F0 Clear math co-processor
0F1 Reset math co-processor
0F8-0FF Math co-processor
1F0-1F8 Fixed disk
278-27F Parallel printer port 2 (LPT3)
290-297 On-board hardware monitor
2F8-2FF Serial port 2
360-36F Reserved
378-37F Parallel printer port 1 (LPT2)
3C0-3CF Reserved
3D0-3DF Color/graphics monitor adapter
3F0-3F7 Diskette controller
3F8-3FF Serial port 1