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3 interrupt assignments, Standard interrupt assignments, Irq assignments for this motherboard – Asus Motherboard P5PL2-E User Manual

Page 37

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ASUS P5PL2-E

2-17

2.5.3 Interrupt assignments

Standard interrupt assignments

IRQ

Priority

Standard Function

0

1

System Timer

1

2

Keyboard Controller

2

Re-direct to IRQ#9

3

11

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.

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 E x16 slot

shared —

PCI E x1 slot 1

shared —

PCI E x1 slot 2

— shared

Onboard USB controller 0

— shared —

Onboard USB controller 1

— shared

Onboard USB controller 2

shared —

Onboard USB controller 3

— shared —

Onboard EHCI controller

— shared —

Onboard IDE port

— shared —

Onboard SATA port

— shared

Onboard Audio controller

shared —

Onboard LAN controller

— shared —

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