Interrupt Assignments - Asus M2N DH User Manual

2.5.3

Interrupt assignments

Standard interrupt assignments
IRQ Priority
0 1
1 2
2 –
4 12
5 13
6 14
7 15
8 3
9 4
10 5
11 6
12 7
13 8
14 9
15 10
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
PCI Slot 1 shared
PCI Slot 2
PCI Slot 3
PCIe x16 slot
PCIe x1 slot 1
PCIe x1 slot 2
ASUS M2N / M2N DH
Standard function
System Timer
Keyboard Controller
Redirect to IRQ#9
Communications Port (COM1)*
IRQ Holder for PCI Steering*
Floppy Disk Controller
Printer Port (LPT1)*
System CMOS/Real Time Clock
IRQ Holder for PCI Steering*
IRQ Holder for PCI Steering*
IRQ Holder for PCI Steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
A B C
- -
- shared -
- - shared
- - -
- - -
- - -
D E F
- -- -
- - -
- - -
- - -
- - shared
- shared -
G H
- -
- -
- -
- shared
- -
- -
2-