Interrupt assignments Asus prime Asus M3A78-EH

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Chapter 1: Product introduction

* These IRQs are usually available for ISA or PCI devices.

Interrupt assignments

IRQ

Standard function

0

System timer

1

Standard 101/102-Key or Microsoft Natural Keyboard

2

Programmable interrupt controller

3

Standard OpenHCI USB Host Controller

4

Communications Port (COM 1)

5

ACPI IRQ Holder for PCI IRQ Steering

6

(free)

7

(free)

8

System CMOS / Real Time Clock

9

SCI IRQ used by ACPI bus

10

Standard PCI Graphics Adapter (VGA)

11

(free)

12

Microsoft PS/2 Port Mouse

13

Numeric data processor

14

Primary IDE controller (single fifo)

15

Secondary IDE controller (single fifo)