User manual

AIMB-567 User Manual 78
B.22 JCASE1(Open Case Connector)
B.23 DMA Channel Assignments
B.24 Interrupt Assignments
Table B.24: Case Open Connector(JCASE1)
Pin Signal
1 CASE_OPEN#
2GND
Table B.25: 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
Table B.26: Interrupt Assignments
Priority Interrupt# Interrupt source
1 NMI Parity error detected
2 IRQ0 Interval timer
3 IRQ1 Keyboard
- IRQ2 Interrupt from controller 2 (cascade)
4 IRQ8 Real-time clock
5 IRQ9 Cascaded to INT 0A (IRQ 2)
6 IRQ10 Serial communication port 3/4
7 IRQ11 Available
8 IRQ12 PS/2 mouse
9 IRQ13 INT from co-processor
10 IRQ14 Primary IDE Channel
11 IRQ15 Secondary IDE Channel
12 IRQ3 Serial communication port 2
13 IRQ4 Serial communication port 1
14 IRQ5 Available
15 IRQ6 Diskette controller (FDC)
16 IRQ7 Parallel port 1 (print port)