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

KTD-S0005-0

Appendix A: System Resources

A.1

Interrupt Request (IRQ) Lines

Please note that KONTRON PC/104 devices were designed after the draft of P996 Specification for ISA
systems. Because of this shareable interrupts are not supported. Please ensure that the chosen interrupt is
not already in use by PCI devices.
IRQ #
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Floating Point Unit (FPU)
14 IDE Controller (Primary)
15 IDE Controller (Secondary)
Note: If the Used for device is disabled in the BIOS Setup the corresponding interrupt is free.
1)
The parallel port also can be configured for IRQ5.
2)
Not usable in Windows
3)
Page 38
Used for Available
Timer 0
Keyboard
8259 Slave (Cascade)
Serial Port 2 (COM2)
Serial Port 1 (COM1)
Floppy Controller
Parallel Port (LPT1)
Real Time Clock (RTC)
PCI IRQ
PCI IRQ
PS/2 Mouse
® since a PCI IDE controller uses always two channels.
MOPSlcdLX User's Guide
Appendix A: System Resources
Comment
No
No
No
No Note (1)
No Note (1)
Yes Note (2)
No Note (1)
No Note (1)
No
Yes
for PCI Dynamic (BIOS default)
for PCI Dynamic (BIOS default)
No Note (1)
No
No Note (1)
No Note (3)