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Hardware Interrupts
IRQ no.
Function
IRQ0
Timer output
IRQ1
Keyboard
IRQ2
Cascade from IRQ controller 2
IRQ3
Serial port 2
IRQ4
Serial Port 1
IRQ5
Parallel port 2
IRQ6
FDD controller
IRQ7
Parallel port 1
IRQ8
Real-time clock
IRQ9
Reserved
IRQ10
Reserved
IRQ11
Reserved
IRQ12
PS/2 mouse
IRQ13
Math coprocessor
IRQ14
HDD controller
IRQ15
Reserved
Specifications
A-13