User`s manual

Appendix B System Assignments 109
B.2 DMA channel assignments
Table B-2: DMA channel assignments
Channel Function
0 Available
1 Available
2 Floppy disk (8-bit transfer)
3 Parallel**
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
** Parallel port DMA default setting: DMA 3
Parallel port DMA select: DMA 1.3
3C0-3CF Reserved
3D0-3DF Color/graphics monitor adapter
3F0-3F7 Diskette controller
3F8-3FF Serial port 1
443 Watchdog timer
** default setting