MIO-5250 User Manual
58
B.1
System I/O Ports
B.2
DMA Channel assignments
Table B.1: System I/O Ports
Addr. Range (Hex)
Device
000-01F
DMA Controller
20h-2Dh
Interrupt Controller
50h-52h
Timer/Counter
060-06F
8042 (keyboard controller)
070-07F
Real-time clock, non-maskable interrupt (NMI)mask
080-09F
DMA page register
0A0-0BF
0A0-0BF
0C0-0DF
DMA controller
170h-177h
IDE Controller
1F0h-1F7h
IDE Controller
299h-29Ah
EC HM Index port and Data port
29Ch-29Dh
EC Index port and Data port
2E8-2EF
Communications Port (COM4)
2F8-2FF
Communications Port (COM2)
3E8-3EF
Communications Port (COM3)
3F8-3FF
Communications Port (COM1)
0400 - 04FF
Motherboard resources
0500 - 053F
Motherboard resources
Table B.2: DMA Channel assignments
Channel
Function
0
Available
1
Available
2
Available
3
Available
4
Direct memory access controller
5
Available
6
Available
7
Available
Summary of Contents for MIO-5250
Page 1: ...User Manual MIO 5250...
Page 8: ...MIO 5250 User Manual viii...
Page 11: ...Chapter 1 1 General Information...
Page 17: ...Chapter 2 2 Hardware Installation...
Page 24: ...MIO 5250 User Manual 14 Figure 2 5 I O Connectors Mechanical Drawing...
Page 25: ...Chapter 3 3 BIOS Settings...
Page 43: ...Chapter 4 4 MIOe Installation...
Page 45: ...Appendix A A Pin Assignments...
Page 67: ...Appendix B B System Assignments...
Page 70: ...MIO 5250 User Manual 60...
Page 71: ...Appendix C C Watchdog Timer Sample Code...
Page 73: ...63 MIO 5250 User Manual Appendix C Watchdog Timer Sample Code...