Interrupt Assignments - Asus P5KPL SE User Manual

1.8.3

Interrupt assignments

Standard interrupt assignments
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
PCI1
PCI2
PCI3
PCIEx16_1
PCIEx1_1
PCIEx1_2
PCIEx1_3
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB 2.0 controller
HD audio
LAN
1-22
Priority Standard Function
1 System Timer
2 Keyboard Controller
— —
11 IRQ holder for PCI steering*
12 Communications Port (COM1)
13 Standard IRQ holder for PCI steering
14 Floppy Disk Controller
15 Printer Port (LPT1)
3 System CMOS/Real Time Clock
4 Microsoft ACPI-Compliant Sytem
5 IRQ holder for PCI steering*
6 IRQ holder for PCI steering*
7 PS/2 Compatible Mouse Port
8 Numeric Data Processor
9 Primary IDE Channel
A B
— —
— —
— —
shared —
shared —
— shared
— —
— —
— —
— —
shared —
— —
shared —
— Used
C D E
— — shared
— — —
— — —
— — —
— — —
— — —
shared — —
— — —
— shared —
shared — —
— — —
— — —
— — —
— — —
F G
— —
shared —
— shared
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
Chapter 1: Product introduction
H
—
—
—
—
—
—
—
shared
—
—
—
shared
—
—