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PCA-6175 User's Manual
B.15 DMA Channel Assignments
Table B-15: DMA channel assignments
Channel Function
0 Available
1 Available
2 Floppy disk (8-bit transfer)
3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
B.16 Interrupt Assignments
Table B-16: Interrupt assignments
Priority Interrupt# Interrupt source
1 NMI Parity error detected
2 IRQ 0 Interval timer
3 IRQ 1 Keyboard
- IRQ 2 Interrupt from controller 2 (cascade)
4 IRQ 8 Real-time clock
5 IRQ 9 Cascaded to INT 0A (IRQ 2)
6 IRQ 10 Available
7 IRQ 11 Available
8 IRQ 12 PS/2 mouse
9 IRQ 13 INT from co-processor
10 IRQ 14 Fixed disk controller
11 IRQ 15 Available
12 IRQ 3 Serial communication port 2
13 IRQ 4 Serial communication port 1
14 IRQ 5 Parallel port 2
15 IRQ 6 Diskette controller (FDC)
16 IRQ 7 Parallel port 1 (print port)