System Interrupts |
Hardware IRQ |
System
Function |
IRQ0 |
System Timer |
IRQ1 |
Standard
101/102-Key or Microsoft Natural Keyboard |
IRQ2 |
Programmable
interrupt controller |
IRQ3 |
Compaq Presario
56K-DF |
IRQ4 |
Communications
Port (COM1) |
IRQ5 |
NeoMagic
MagicWave 3DX Sound System |
IRQ6 |
Standard Floppy Disk Controller |
IRQ7 |
Printer Port (LPT1) |
IRQ8 |
System CMOS/real time clock |
IRQ9 |
Texas Instruments PCI-1211
CardBus Controller |
IRQ9 |
NeoMagic MagicMedia 256AV |
IRQ9 |
IRQ Holder for PCI Steering |
IRQ9 |
IRQ Holder for PCI Steering |
IRQ11 |
Intel 82371AB/EB PCI to USB
Universal Host Controller |
IRQ11 |
NeoMagic MagicMedia 256AV Audio |
IRQ11 |
IRQ Holder for PCI Steering |
IRQ12 |
Synaptics PS/2 TouchPad |
IRQ13 |
Numeric data processor |
IRQ14 |
Primary IDE controller (dual
fifo) |
IRQ14 |
Intel 82371AB/EB PCI Bus Master
IDE Controller |
IRQ15 |
Secondary IDE controller (dual
fifo) |
IRQ15 |
Intel 82371AB/EB PCI Bus Master
IDE Controller |