Appendix a: system resources, A.1 interrupt request (irq) lines, Mopslcdlx user's guide – Kontron MOPSlcdLX User Manual
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Appendix A: System Resources
MOPSlcdLX User's Guide
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 #
Used for
Available
Comment
0
Timer 0
No
1
Keyboard
No
2
8259 Slave (Cascade)
No
3
Serial Port 2 (COM2)
No
Note (1)
4
Serial Port 1 (COM1)
No
Note (1)
5
Yes
Note (2)
6
Floppy Controller
No
Note (1)
7
Parallel Port (LPT1)
No
Note (1)
8
Real Time Clock (RTC)
No
9
Yes
10
PCI IRQ
for PCI
Dynamic (BIOS default)
11
PCI IRQ
for PCI
Dynamic (BIOS default)
12
PS/2 Mouse
No
Note (1)
13
Floating Point Unit (FPU)
No
14
IDE Controller (Primary)
No
Note (1)
15
IDE Controller (Secondary)
No
Note (3)
Note:
1)
If the
Used for device is disabled in the BIOS Setup the corresponding interrupt is free.
2)
The parallel port also can be configured for IRQ5.
3)
Not usable in Windows
®
since a PCI IDE controller uses always two channels.