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C.3 irq mapping table, C.4 dma channel assignments – IEI Integration ROCKY-3786 v4.0 User Manual

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C.3 IRQ Mapping Table

IRQ

Description

IRQ

Description

IRQ0 System

Timer IRQ8 RTC

clock

IRQ1 Keyboard IRQ9 Avaliable

IRQ2 Cascade

to

IRQ

Controller IRQ10

AC ’97 CODEC

IRQ3 COM2 IRQ11

Intel 82562ET LAN

IRQ4 COM1 IRQ12

PS/2 mouse

IRQ5 Available IRQ13

FPU

IRQ6 FDC IRQ14

Primary IDE

IRQ7 Parallel

Port IRQ15

Secondary IDE

Table C-3: IRQ Mapping Table

C.4 DMA Channel Assignments

Channel

Function

0 Available

1 Available

2 Floppy

disk

(8-bit

transfer)

3 Available

4

Cascade for DMA controller 1

5 Available

6 Available

7 Available

Table C-4: DMA Channel Assignments