4 interrupt request (irq) lines, Interrupt request (irq) lines, Pic mode – ADLINK Express-HR User Manual

Page 33

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Page 33

Express-IA533 User’s Manual

Page 33

Express-IA533 User’s Manual

Express-HR User’s Manual

Page 33

Page 33

Express-HR User’s Manual

8.4 Interrupt Request (IRQ) Lines

PIC Mode

IRQ#

Typical Interrupt Resource

Connected

Available

0

Counter 0

Internal Timer / Counter 0 output / HPET #0 No

1

Keyboard controller

IRQ1 via SERIRQ

No

2

Cascade interrupt from slave PIC

Slave controller INTR output

No

3

Serial Port 2 (COM2)

IRQ3 via SERIRQ

No

4

Serial Port 1 (COM1)

IRQ4 via SERIRQ

No

5

Available

N/A

Yes

6

Available

N/A

Yes

7

Available

N/A

Yes

8

Real-time clock

Internal RTC / HPET #1

No

9

SCI / PCI

IRQ9 via SERIRQ

No

10

Available

N/A

Yes

11

Available

N/A

Yes

12

PS/2 Mouse

IRQ12 via SERIRQ

No

13

Math Processor

N/A

No

14

SATA Primary

IRQ14 via SERIRQ

No

15

SATA Secondary

IRQ15 via SERIRQ

No

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