System I/O Ports; Dma Channel Assignments; B.1 System I/O Ports - Advantech MIO-5250 User Manual

B.1

System I/O Ports

Table B.1: System I/O Ports
Addr. Range (Hex)
000-01F
20h-2Dh
50h-52h
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
170h-177h
1F0h-1F7h
299h-29Ah
29Ch-29Dh
2E8-2EF
2F8-2FF
3E8-3EF
3F8-3FF
0400 - 04FF
0500 - 053F
B.2

DMA Channel assignments

Table B.2: DMA Channel assignments
Channel
0
1
2
3
4
5
6
7
MIO-5250 User Manual
Device
DMA Controller
Interrupt Controller
Timer/Counter
8042 (keyboard controller)
Real-time clock, non-maskable interrupt (NMI)mask
DMA page register
0A0-0BF
DMA controller
IDE Controller
IDE Controller
EC HM Index port and Data port
EC Index port and Data port
Communications Port (COM4)
Communications Port (COM2)
Communications Port (COM3)
Communications Port (COM1)
Motherboard resources
Motherboard resources
Function
Available
Available
Available
Available
Direct memory access controller
Available
Available
Available
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