5 system resources, 1 interrupt request (irq) lines, System resources – Kontron ETX-CD User Manual

Page 34: Interrupt request (irq) lines, Etx®-cd / system resources

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ETX®-CD / System Resources

5 System Resources

5.1

Interrupt Request (IRQ) Lines

In 8259 PIC mode:

IRQ #

Used For

Available

Comment

0

Timer0

No

1

Keyboard

No

2

Slave 8259

No

3

COM2

No

Note (1)

4

COM1

No

Note (1)

5

LPT2

Yes

Note (2)

6

Floppy Drive Controller

No

Note (1)

7

LPT1

No

Note (1)

8

RTC

No

9

SCI

No

10

COM3

Yes

Note (2)

11

COM4

Yes

Note (2)

12

PS/2 Mouse

No

Note (1)

13

FPU

No

14

IDE0

No

Note (1)

15

SATA

No

Note (3)

1 If the “Used For” device is disabled in setup, the corresponding interrupt is available for
other devices.
2 Unavailable if baseboard is equipped with an I/O controller SMC FDC37C669, and the
device is enabled in setup.
3 Unavailable in SATA legacy mode. It cannot be used for PCI, but for ISA bus, when SATA is
in enhanced mode.

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