2.5.3 I nterrupt assi gnments

Standard i nterrupt assi gnments

IRQ

Priority

Standard Function

 

 

 

0

1

System Timer

1

2

Keyboard Controller

2

—

Re-direct to IRQ#9

3

11

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

9

Primary IDE Channel

15

10

Secondary IDE Channel

 

 

 

* These IRQs are usually available for ISA or PCI devices.

I RQ assi gnments for thi s motherboard

 

A

B

C

D

E

F

G

H

PCI slot 1

—

—

—

—

—

shared

—

—

PCI slot 2

—

—

—

—

—

—

shared

—

PCIX slot 1

—

—

shared

—

—

—

—

—

PCIX slot 2

—

—

—

shared

—

—

—

—

Onboard SATA

shared

—

—

—

—

—

—

—

Onboard 1394

—

—

—

—

—

shared

—

—

Onboard LAN 1/2

shared

—

—

—

—

shared

—

—

PCIE x16 1

shared

—

—

—

—

—

—

—

PCIE x16 2

shared

—

—

—

—

—

—

—

USB controller 1

shared

—

—

—

—

—

—

—

USB controller 2

—

shared

—

—

—

—

—

—

USB controller 3

—

—

shared

—

—

—

—

—

USB controller 4

—

—

—

shared

—

—

—

—

USB 2.0 controller

shared

—

—

—

—

—

—

—

Serial ATA

—

shared

—

—

—

—

—

shared

HD Audio

shared

—

—

—

—

—

—

—

 

 

 

 

 

 

 

 

 

ASUS P5WDG2 WS Professional/P5WDG2 WS PRO/WiFi-AP

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