Asus M3A78-EM Interrupt assignments, IRQ Standard function

Interrupt assignments

IRQ Standard function

0System timer

1Standard 101/102-Key or Microsoft Natural Keyboard

2Programmable interrupt controller

3Standard OpenHCI USB Host Controller

4Communications Port (COM 1)

5ACPI IRQ Holder for PCI IRQ Steering

6(free)

7(free)

8System CMOS / Real Time Clock

9SCI IRQ used by ACPI bus

10Standard PCI Graphics Adapter (VGA)

11(free)

12Microsoft PS/2 Port Mouse

13Numeric data processor

14Primary IDE controller (single fifo)

15Secondary IDE controller (single fifo)

*These IRQs are usually available for ISA or PCI devices.

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