Interrupt Assignments; Irq Assignments For This Motherboard - Asus P5N64 WS Professional User Manual

2.5.3

Interrupt assignments

IRQ Priority
0 1
1 2
2 –
3 11
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 PCI devices.

IRQ assignments for this motherboard

PCI 1
PCI 2
1394
LAN 1
LAN 2
Marvell 6121
Marvell 6320
PCIe x16 1
PCIe x16 2
PCIe x16 3
PCIe x16 4
PCIe x1
Azalia
USB controller 1
USB controller 2
SATA controller 0
SATA controller 1
SATA controller 2
ASUS P5N64 WS Professional
Standard function
System timer
Keyboard controller
Re-direct to IRQ#9
IRQ holder for PCI steering*
Communications port (COM1)*
IRQ holder for PCI steering*
Floppy disk controller
IRQ holder for PCI steering*
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
IRQ holder for PCI steering*
IRQ holder for PCI steering*
A B C
shared – –
– shared –
– – –
– – shared
– – –
– – –
shared – –
shared – –
shared –
– – shared
– shared –
– shared –
shared – –
– shared –
– shared –
shared – –
shared – –
shared – –
D E F
– – –
– – –
shared – –
– – –
shared – –
shared – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
G H
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
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