Interrupt request (irq) lines, Pic mode – ADLINK Express-BE User Manual

Page 44

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Page 44

Express-BE

6.4. Interrupt Request (IRQ) Lines

6.4.1. PIC Mode

IRQ#

Typical Intterupt Resource

Connected to Pin

Available

0 Counter

0

N/A

No

1 Keyboard

controller

N/A

No

2

Cascade interrupt from slave PIC

N/A

No

3

Serial Port 4 / PCI

IRQ3 via SERIRQ

Note (1)

4

Serial Port 3 / PCI

IRQ4 via SERIRQ

Note (1)

5

PCI

IRQ5 via SERIRQ

Note (1)

6

Floppy Drive Controller

IRQ6 via SERIRQ

No

7

PCI

IRQ7 via SERIRQ

Note (1)

8 Real-time

clock

N/A

No

9

SCI / PCI

IRQ9 via SERIRQ

Note (1)

10

Serial Port 1

IRQ10 via SERIRQ

No

11

Serial Port 2

IRQ11 via SERIRQ

No

12

PS/2 Mouse / PCI

IRQ12 via SERIRQ

Note (1)

13 Math

Processor

N/A

No

14

Primary IDE controller / PCI

IRQ14 via SERIRQ

Note (1)

15 PCI

N/A

No


Note (1):
These IRQs can be used for PCI devices when onboard device is disabled.

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