Asus M2A-MVP User Manual download pdf (Page 33)

ASUS M2A-MVP 1-21

1.8.3 Interrupt assignments

Standard interrupt assignments

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

IRQ Priority Standard function

0 1 System Timer

1 2 Keyboard Controller

2 – Redirect to IRQ#9

3 11

Reserved

12 Communications Port (COM1)*

5 13 IRQ holder for PCI steering*

6 14 Floppy Disk Controller

7 15 Printer Port (LPT1)*

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 Primary IDE/SATA Channel

15 10 Secondary IDE/SATA Channel

A B C D E F G H

PCI Slot 1

— — — — shared shared shared shared

PCI Slot 2

— — — — shared shared shared shared

IEEE 1394a

— — — — — — shared —

LAN (88E8001)

— — — — — shared — —

PCI-E x1_1

shared shared shared shared — — — —

PCI-E x1_2

shared shared shared shared — — — —

PCI-E x16_1

shared shared shared shared — — — —

PCI-E x16_2

shared shared shared shared — — — —

USB1.0 controller1

— — — shared — — — —

USB1.0 controller2

— — — shared — — — —

USB1.0 controller3

— — — shared — — — —

USB1.0 controller4

— — — shared — — — —

USB2.0 controller

— — — shared — — — —

HD audio

shared — — — — — — —

Onboard SATA

— — — — — shared —

—

IRQ assignments for this motherboard

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 105 106

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Asus M2A-MVP User Manual Page 33

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