Interrupt Assignments - Asus TW300-E5/PI4 User Manual

2.7.3

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 Slot 1
PCI Slot 2
LAN 1 (8056)
LAN 2 (8056)
SATA (Marvell)
PCIe X16_1
PCIe X16_2
PCIe X1_1
PCIX_1
USB Controller 1
USB Controller 2
USB Controller 3
USB Controller 4
USB Controller 5
USB Controller 6
USB 2.0 Controller 1
USB 2.0 Controller 2
SATA Controller 1
SATA Controller 2
Azalia ALC888
ASUS TW300-E5/PI4
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
– – –
– – –
D E F
– – –
– – –
– – –
Shared – –
– – –
– – –
– – –
– – –
– – –
– – –
Shared – –
– – –
– – –
– – –
– – Shared
– – –
– – –
– – –
– – –
– – –
G H
– –
– –
– –
– –
– –
– –
– –
– –
– –
– Shared
– –
– –
– –
– –
– –
– Shared
– –
– –
Shared –
Shared –
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