Asus P5B VM P5B-VM English Edition User's Manual - Page 36

1-24

Chapter 1: Product introduction

1.8.3

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


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


12

7

PS/2 Compatible Mouse Port*

13

8

Numeric Data Processor

14

9

IDEIRQ (legacy mode, combined mapped as primary),

SMasterATA1 (Master), SATA3 (Secondary)

15

10

IDEIRQ (legacy mode, combined mapped as secondary),

SATA2 (Master), SATA4 (Secondary)

* These IRQs are usually available for PCI devices.

IRQ assignments for this motherboard

A

B

C

D

E

F

G

H

PCI1

shared

—

—

—

—

—

—

—

PCI2

—

shared

—

—

—

—

—

—

PCIEX16_1

shared

—

—

—

—

—

—

—

PCIEX4_1

shared

—

—

—

—

—

—

—

On-board ESATA, SATA_RAID

shared

—

—

—

—

—

—

—

On-board PRI_IDE

shared

—

—

—

—

—

—

—

On-board HD Audio (AD1988)

—

—

—

—

—

—

shared

—

On-board GbEthernet (RTL8111B)

—

shared

—

—

—

—

—

—

USB 2.0 EHCI#1

—

—

—

—

—

—

—

shared

USB 2.0 EHCI#2

—

—

—

—

—

—

shared

—

USB12 UHCI#1

—

—

—

—

—

—

—

shared

USB34 UHCI#2

—

—

—

shared

—

—

—

—

USB56 UHCI#3

—

—

shared

—

—

—

—

—

USB78 UHCI#4

shared

—

—

—

—

—

—

—

USB910 UHCI#5

shared

—

—

—

—

—

—

—

SATA1, SATA2 (ICH8)

—

—

shared

—

—

—

—

—

SATA3, SATA4 (ICH8)

—

—

—

shared

—

—

—

—

Asus P5B VM P5B-VM English Edition User's Manual - Page 36

Interrupt assignments

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