System Configuration 2-3

Interrupt Level Assignments

Interrupt
Priority Interrupt Device*
IRQ08 System CMOS/real time clock
IRQ09 Shared Resource: ACPI IRQ Holder for PCI IRQ
Steering/YAMAHA AC-XG Audio Device/Intel
82801AA SMBus Controller/SCI IRQ used by
ACPI bus
IRQ10 Shared Resource: ACPI IRQ Holder for PCI IRQ
Steering/Winfast 3D S32011 (TNT2-PRO)
IRQ11 Shared Resource: ACPI IRQ Holder for PCI IRQ
Steering/Intel 82801AA USB Universal Host
Controller
IRQ12 WheelMouse (PS/2)
IRQ13 Numeric Data Processor
IRQ14 Primary IDE Controller/Intel 82801AA Bus
Master IDE Controller
IRQ15 Secondary IDE Controller
* IRQ settings may vary, depending on system configuration.
Parallel Port Interrupts

The parallel port I/O interrupts are given in the following table.

Parallel Port Interrupts

Port Interrupt
LPT1 IRQ07
LPT2 IRQ07
LPT3 IRQ07