2.5.3Interrupt assignments

IRQ

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Priority

1

2

11

12

13

14

15

3

4

5

6

7

8

9

10

Standard function System timer Keyboard controller Re-direct to IRQ#9

IRQ holder for PCI steering* Communications port (COM1)* IRQ holder for PCI steering* Floppy disk controller Printer port (LPT1)*

System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 compatible mouse port* Numeric data processor Primary IDE channel Secondary IDE channel

* These IRQs are usually available for PCI devices.

IRQ assignments for this motherboard

 

 

A

B

C

D

E

F

G

H

 

 

PCI slot 1

shared

 

 

PCI slot 2

shared

 

 

PCI slot 3

shared

 

 

PCI slot 4

shared

 

 

LAN (8001)

shared

 

 

SATA (363)

shared

 

 

LAN (8056)

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 controller 5

shared

 

 

USB 2.0 controller 1

shared

 

 

USB 2.0 controller 2

shared

 

 

SATA controller 1

shared

 

 

SATA controller 2

shared

 

 

Azalia

shared

 

 

 

 

 

 

 

 

 

 

 

 

 

ASUS Commando

 

 

 

 

 

 

 

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Image 45
Asus E2938 Interrupt assignments, IRQ assignments for this motherboard, These IRQs are usually available for PCI devices