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3 interrupt assignments, Irq assignments for this motherboard, These irqs are usually available for pci devices – Asus P5N7A-VM User Manual

Page 37

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ASUS P5N7A-VM

1-25

1.8.3

Interrupt assignments

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

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

IRQ holder for PCI steering*

13

8

Numeric data processor

14

9

Primary IDE channel

15

10

Secondary IDE channel

* These IRQs are usually available for PCI devices.

PIRQ1 PIRQ2 PIRQ3 PIRQ4 PIRQ5 PIRQ6

PCI slot 1

shared shared shared shared

PCI slot 2

shared shared shared shared

PCI Express x16 slot

shared

PCI Express x1 slot

shared

IRQ assignments for this motherboard

MCP

_USB

MCP

_MAC

MCP

_AZA

MCP

_IGPU

MCP

_IDE

MCP

_USB2

MCP

_AHCI

Onboard USB controller

shared

Onboard USB 2.0 controller

shared

Onboard USB controller 1

shared

Onboard USB 2.0 controller 1

shared

Onboard LAN

shared

Onboard SATA controller

shared

Onboard HD Audido

shared

Onboard VGA

shared

Internal devices interrupt

External devices interrupt