Interrupt Assignments - Asus M3A78-T Handbuch

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
PCIE x16_1
PCIE x16_2
PCIE x16_3
USB 1.0 controller 1
USB 1.0 controller 2
USB 1.0 controller 3
USB 1.0 controller 4
USB 2.0 controller
HD audio
Onboard SATA
ASUS M3A78-T
Standard function
System Timer
Keyboard Controller
Redirect to IRQ#9
Communications Port (COM1)*
IRQ Holder for PCI Steering*
Floppy Disk Controller
Reserved
System CMOS/Real Time Clock
AMD ACPI-Compliant System
IRQ Holder for PCI Steering*
IRQ Holder for PCI Steering*
Reserved
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
A B C
shared shared shared shared
shared shared shared shared
shared shared shared shared
– – –
– – –
– – –
– – –
– – –
shared – –
– – –
D E F
– –
– –
– –
shared – –
shared – –
shared – –
shared – –
shared – –
– – –
– shared
G H
– –
– –
– –
– –
– –
– –
– –
– –
– –
– –
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