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3 interrupt assignments, Standard interrupt assignments, Irq assignments for this motherboard – Asus Motherboard P5B-E User Manual

Page 43

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ASUS P5B-E

2-19

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

12

IRQ holder for PCI steering*

4

13

Communications Port (COM1)*

5

14

IRQ holder for PCI steering*

6

15

Floppy Disk Controller

7

16

Printer Port (LPT1)*

8

3

System CMOS/Real Time Clock

9

4

ACPI*

10

5

SMBus Controller*

11

6

IRQ holder for PCI steering*

12

7

PS/2 Compatible Mouse Port*

13

8

Numeric Data Processor

14

9

IDEIRQ Compatible mode, Mapped as

Primary Channel/Master-SATA1/Slave-SATA3

15

10

IDEIRQ Compatible mode, Mapped as

Secondary Channel/Master-SATA2/Slave-SATA4

* 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 —

PCIEX16_1

shared —

PCIEX1_1

shared —

PCIEX1_2

— shared —

PCIEX1_3

— shared —

GbEthernet (Attansic L1)

— shared —

ESATA, SATA_RAID

shared —

PRI_IDE (JMicron363)

shared —

— shared

IEEE 1394a (VIA 6307)

— shared —

HD Audio (ADI1988A)

— shared —

USB 2.0 EHCI#1

— shared

USB 2.0 EHCI#2

— shared —

USB12 OBCI#1

— shared

USB34 OBCI#2

— shared —

USB56 OBCI#3

— shared —

USB78 OBCI#4

shared

USB910 OBCI#5

— shared —

SATA1,2, 3, 4, 5, 6 (ICH8)

— shared —

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