User manual

PCM-9375 User Manual 78
Appendix B System Assignments
B.1 System I/O Ports
Table B.1: System I/O ports
Addr. range
(Hex)
Device
000-01F DMA controller
020-021 Interrupt controller 1, master
040-05F 8254 timer
060-06F 8042 (keyboard controller)
070-071 Real-time clock, non-maskable interrupt (NMI) mask
87-8A DMA page register
0A0-0A1 Interrupt controller 2
0C0-0DF DMA controller
1F0-1F8 Fixed disk
278-27F Reserved (Parallel port 2,LTP3)
2E8-2EF Reserved (Series port 4)
2F8-2FF Serial port 2
378-37F Parallel printer port 1 (LPT 2)
3B0-3BF Monochrome display and printer adapter (LPT1)
3D0-3DF Color/graphics monitor adapter
3E8-3EF Reserved (Series port 3)
3F0-3F7 Diskette controller
3F8-3FF Serial port 1
Data Modul AG - www.data-modul.com