Advantech Intel User Manual

Appendix B  Pin Assignments      85

Table B-10: DMA channel assignments

0

Available

1

Available

2

Floppy disk (8-bit transfer)

3

LPT1

4

Cascade for DMA controller 1

5

Available

6

Available

7

Available

Table B-11: Interrupt assignments

Interrupt#

Interrupt source

IRQ 0

Interval  timer

IRQ 1

Keyboard

IRQ 2

Interrupt from controller 2 (cascade)

IRQ 8

Real-time  clock

IRQ 9

Cascaded to INT 0A (IRQ 2)

IRQ 10

Available

IRQ 11

Available

IRQ 12

PS/2  mouse

IRQ 13

INT from co-processor

IRQ 14

Fixed disk controller

IRQ 15

Available

IRQ 3

Serial communication port 2

IRQ 4

Serial communication port 1

IRQ 5

Available

IRQ 6

Diskette controller (FDC)

IRQ 7

Parallel port 1 (print port)