98 PCA-6751 Series User's Manual
D.3 Interrupt assignments
Table D-3: 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 Watchdog timer
IRQ 12 PS/2 mouse (non-releasable)
IRQ 13 INT from co-processor
IRQ 14 Fixed disk controller (primary)
IRQ 15 Fixed disk controller (secondary)
IRQ 3 Serial communication port 2
IRQ 4 Serial communication port 1
IRQ 5 Parallel port 2
IRQ 6 Diskette controller (FDC)
IRQ 7 Parallel port 1 (print port)
* PNP audio IRQ select: 5, 7, 9 or 10
* Ethernet function is auto-sensing
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