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3 interrupt assignments, Irq assignments for this motherboard – Asus P5K Pro User Manual

Page 43

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ASUS P5K PRO

2-19

2.5.3

Interrupt assignments

* These IRQs are usually available for PCI devices.

A

B

C

D

E

F

G

H

PCI slot 1

shared

PCI slot 2

shared

LAN(8056)

shared

PCIE x16 1

shared

PCIE x16 2

shared

PCIE x1 1

shared

PCIE x1 2

shared

USB controller 1

used

USB controller 2

shared

USB controller 3

shared

USB controller 4

shared

USB controller 5

shared

USB controller 6

shared

USB 2.0 controller 1

used

USB 2.0 controller 2

shared

SATA controller 1

shared

SATA controller 2

shared

used

IRQ assignments for this motherboard

IRQ

Priority Standard function

0

1

System Timer

1

2

Keyboard Controller

2

Re-direct to IRQ#9

3

9

IRQ holder for PCI steering*

4

12

Communications Port (COM1)*

5

13

IRQ holder for PCI steering*

6

14

Floppy Disk Controller

7

15

Printer Port (LPT1)*

8

3

System CMOS/Real Time Clock

9

4

IRQ holder for PCI steering*

10

5

IRQ holder for PCI steering*

11

6

IRQ holder for PCI steering*

12

7

PS/2 Compatible Mouse Port*

13

8

Numeric Data Processor

14

10

Primary IDE Channel

15

11

Secondary IDE Channel