Interrupt Request (Irq) Lines - Congatec XTX conga-XLX User Manual

7.3 Interrupt Request (IRQ) Lines

Table 39
IRQ# Available
0 No
1 No
2 No
3 Note 1
4 Note 1
5 Yes
6 Note 1
7 Note 1
8 No
9 Note 2
10 Yes
11 Yes
12 Note 1
13 No
14 Note 1
15 No
In PIC mode, the PCI bus interrupt lines can be routed to any free IRQ.
Notes
1. Default, but can be changed to another interrupt.
2. In ACPI mode, IRQ9 is used for the SCI (System Control Interrupt). The SCI can be
shared with a PCI interrupt line.
Copyright © 2006 congatec AG
IRQ Lines in PIC mode
Typical Interrupt Source
Counter 0
Keyboard
Cascade Interrupt from Slave PIC
Serial Port 2 (COM2) / Generic
Serial Port 1 (COM1) / Generic
N.A.
Floppy Drive Controller / Generic
Parallel Port 1 (LPT1) / Generic
Real-time Clock
SCI / Generic
N.A.
N.A.
PS/2 Mouse / Generic
Math processor
IDE Controller 0 (IDE0)
N.A.
Connected to Pin
N.A.
N.A.
N.A.
IRQ3 via SERIRQ
IRQ4 via SERIRQ
IRQ5 via SERIRQ
IRQ6 via SERIRQ
IRQ7 via SERIRQ
N.A.
IRQ9 via SERIRQ
IRQ10 via SERIRQ
IRQ11 via SERIRQ
IRQ12 via SERIRQ
N.A.
IRQ14
N.A.
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