Advantech PCA-6275 manual DMA Channel Assignments, Interrupt Assignments

B.15 DMA Channel Assignments

Table B-15: DMA channel assignments

Channel Function

1Available

2Floppy disk (8-bit transfer)

3Available

4Cascade for DMA controller 1

5Available

6Available

7Available

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)

72PCA-6275 User's Manual