Interrupt channel assignments, Table 3-1, Table 3-2 – ADLINK CoreModule 435 User Manual

Page 27: Dma map

Advertising
background image

Chapter 3

Hardware

CoreModule 435

Reference Manual

21

Interrupt Channel Assignments

The interrupt channel assignments are shown in

Table 3-1

.

Legend: D = Default, O = Optional, X = Fixed

Table 3-1. Interrupt Channel Assignments

Device vs IRQ No.

0

1

2

3

4

5

6

7

8

9

10 11

12

13

14

15

Timer X
Keyboard

X

Secondary Cascade

X

COM1

O

D

COM2

D

O

COM3

O

O

O

D

COM4

O

O

D

O

RTC

X

IDE

D

Math Coprocessor
(only in DX
processor)

X

PS/2 Mouse

X

PCI INTA

Automatically Assigned

PCI INTB

Automatically Assigned

PCI INTC

Automatically Assigned

PCI INTD

Automatically Assigned

USB

Automatically Assigned

VGA

Automatically Assigned

Ethernet

Automatically Assigned

NOTE

The IRQs for the Ethernet, Video, and Internal Local Bus (ISA) are
automatically assigned by the BIOS Plug and Play logic. Local IRQs assigned
during initialization can not be used by external devices.

Table 3-2. DMA Map

DMA #

Use

0-1, 5, 6, 7

Direct Memory Access

3

LPT 1, only in ECP mode (configurable)

4

DMA 1 cascade

Advertising