Appendix A: System Resources; Interrupt Request (Irq) Lines - Kontron JRexplus-DC User Manual

KTD-S0008-F

Appendix A: System Resources

A.1

Interrupt Request (IRQ) Lines

Please ensure that the chosen interrupt is not already in use by PCI devices. This table is only valid in legacy
mode (e.g. DOS) - most operating systems are using the APIC assignment.
Legacy mode
IRQ #
0
1
2
3
4
5
6
7
8
9 ACPI Power Management
10
11
12
13
Floating Point Unit (FPU)
14
IDE Controller (Primary)
15
IDE Controller (Secondary)
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Used for Available
Timer 0
Keyboard
8259 Slave (Cascade)
Serial Port 1 (COM1)
PCI IRQ
PCI IRQ
Parallel Port (LPT)
Real Time Clock (RTC)
PCI IRQ
PCI IRQ
PS/2 Mouse
JRexplus-DC User's Guide
Appendix A: System Resources
Comment
No
No
No
Yes Possible IRQ of COM2
No Note (1)
for PCI Dynamic
for PCI Dynamic
No Note (1)
No
No
for PCI Dynamic
for PCI Dynamic
No Note (1)
No
No Note (1)
Note (1)
No