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ASUS M2A-MVP 1-21
1.8.3 Interrupt assignments
Standard interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ Priority Standard function
0 1 System Timer
1 2 Keyboard Controller
2 – Redirect to IRQ#9
3 11
Reserved
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 PS/2 Compatible Mouse Port*
13 8 Numeric Data Processor
14 9 Primary IDE/SATA Channel
15 10 Secondary IDE/SATA Channel
A B C D E F G H
PCI Slot 1
— — — — shared shared shared shared
PCI Slot 2
— — — — shared shared shared shared
IEEE 1394a
— — — — — — shared —
LAN (88E8001)
— — — — — shared — —
PCI-E x1_1
shared shared shared shared — — — —
PCI-E x1_2
shared shared shared shared — — — —
PCI-E x16_1
shared shared shared shared — — — —
PCI-E x16_2
shared shared shared shared — — — —
USB1.0 controller1
— — — shared — — — —
USB1.0 controller2
— — — shared — — — —
USB1.0 controller3
— — — shared — — — —
USB1.0 controller4
— — — shared — — — —
USB2.0 controller
— — — shared — — — —
HD audio
shared — — — — — — —
Onboard SATA
— — — — — shared —
—
IRQ assignments for this motherboard