Asus P5Q-EM User Manual download pdf (Page 38)

1-26 Chapter 1: Product introduction

1.8.3 Interrupt assignments

IRQ assignments for this motherboard

A B C D E F G H

1394 (FW3227) – – – shared – – – –

LAN (8111C) – shared – – – – – –

Marvell 6102 shared – – – – – – –

PCIEX16_1 shared – – – – – – –

PCIEX1_1 shared – – – – – – –

PCIEX1_2 – shared – – – – – –

PCI1 shared – – – – – – –

USB controller 1 – – – – – – – used

USB controller 2 – – – shared – – – –

USB controller 3 – – shared – – – – –

USB controller 4 shared – – – – – – –

USB controller 5 shared – – – – – –

USB controller 6 – – – – – used – –

USB 2.0 controller 1 – – – – – – – shared

USB 2.0 controller 2 – – shared – – – – –

SATA controller 1 – – shared – – – – –

SATA controller 2 – – – shared – – – –

IRQ Priority Standard function

0 1 System timer

1 2 Keyboard controller

2

– Re-direct 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 IRQ holder for PCI steering*

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 IRQ holder for PCI steering*

15 10 IRQ holder for PCI steering*

* These IRQs are usually available for PCI devices.

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