User manual

MIO-9290 User Manual 72
B.1 System I/O Ports
B.2 DMA Channel Assignments
Table B.1: System I/O Ports
Addr. Range (Hex) Device
00-1F DMA Controller
20–2D Interrupt Controller
50–52 Timer/Counter
60-6F 8042 (keyboard controller)
70-7F Real-time clock, non-maskable interrupt (NMI) mask
80-9F DMA page register
A0-BF 0A0-0BF
C0-DF DMA controller
200-207 Communications Port (COM5)
208-20F Communications Port (COM6)
2E8-2EF Communications Port (COM4)
299-29A EC HM Index port and Data port
29C-29D EC Index port and Data port
2F8-2FF Communications Port (COM2)
3B0-3DF Motherboard resources
3E8-3EF Communications Port (COM3)
3F8-3FF Communications Port (COM1)
400-4FF Motherboard resources
500-57F 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