A300 Motherboard

D.3 IRQ Mapping Table
IRQ0 System Timer
IRQ8
RTC clock
IRQ1 Keyboard IRQ9
ACPI
IRQ2 Available IRQ10
COM4/COM6
IRQ3 COM2 IRQ11
COM3/COM5
IRQ4 COM1 IRQ12
PS/2 mouse
IRQ5 SMBus Controller
IRQ13
FPU
IRQ6 FDC IRQ14
Primary IDE
IRQ7 Available IRQ15
Secondary IDE
Table D-3: IRQ Mapping Table
D.4 DMA Channel Assignments
Channel
Function
0 Available
1 Available
3 Available
4 Cascade for DMA controller 1
5 Available
6 Available
7 Available
Table D-4: IRQ Mapping Table

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