AIMB-785 User Manual 104
B.25 System I/O Ports
B.26 DMA Channel Assignments
I/O Address (Hex) Device
290h-29Fh H/W Monitor
2F8h-2FFh Communication Port (COM2)
378h-37Fh Printer Port (LPT1)
3B0h-3BBh Graphics
3C0h-3DFh Graphics
3F8h-3FFh Communication Port (COM1)
400h-47Fh PMBASE
500h-57Fh GPIOBASE
778h-77Fh Printer Port (LPT1)
C80h-C9Fh Communication Port (COM3~6)
Table B.27: DMA channel assignments
Channel Function
0 Available
1 Available
2 Available
3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available