Interrupt channel assignments, Table 3-1 – ADLINK Express-HRR User Manual

Page 23

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Chapter 3

Hardware

Express-HRR

Reference Manual

19

Interrupt Channel Assignments

The interrupt channel assignments are shown in

Table 3-1

.

*Located on the baseboard
Legend: D = Default, X = Fixed, O = Optional

NOTE

Table 3-1

is only for reference. Interrupt channel assignments are tied to the

specific legacy Super I/O device residing on the baseboard. This table can be
used with the baseboard in ADLINK’s Quick Start Kit.

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
PS/2 Keyboard*

X

Secondary Cascade

X

COM1*

O D

COM2*

D O

Floppy*

D

Parallel*

O

D

RTC

X

Math Coprocessor

X

PS/2 Mouse*

X

SATA Primary*

X

SATA Secondary*

X

Audio Controller

Automatically Assigned

PCI INTA

Automatically Assigned

PCI INTB

Automatically Assigned

PCI INTC

Automatically Assigned

PCI INTD

Automatically Assigned

USB

Automatically Assigned

Video

Automatically Assigned

Ethernet

Automatically Assigned

NOTE

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

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