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3 interrupt assignments, Irq assignments for this motherboard, Standard interrupt assignments – Asus P5QL-E User Manual

Page 42

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2-18

Chapter 2: Hardware information

2.5.3

Interrupt assignments

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

LAN (L1E)

shared

PCIe Storage Controller shared

PCIe x16_1

shared

PCIe x1_1

shared

PCIe x1_2

shared

USB controller 1

shared

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

shared

USB 2.0 controller 2

shared

SATA controller 1

shared

SATA controller 2

shared

1394 controller

shared

* These IRQs are usually available for PCI devices.

IRQ

Priority Standard function

0

1

System Timer

1

2

Keyboard Controller

2

Redirect 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

Reserve

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

SATA Primary IDE (legacy mode)

15

10

SATA Secondary IDE (legacy mode)

Standard interrupt assignments