Hardware Interrupts
IRQ no.
Function
IRQO
Timeout 0 (internal connection)
IRQI
Keyboard
IRQ2
Cascade IRQ 9
IRQ3
Serial port 2
IRQ4
Serial port 1
IRQ5
Parallel port 2
IRQ6
Diskette drive controller
IRQ7
Parallel port 1
I R Q 8 R e a l - t i m e c l o c k
I
IRQ9
Available
IRQI0
Available
IRQ11
Available
I R Q 1 2 P S / 2 m o u s e
IRQ13
Math coprocessor
IRQ14
Hard disk drive controller
IRQ15
Available
A-12
Specifications