Appendix A: System-Resource Allocations; Interrupt Request (Irq) Lines - Kontron MOPS/386A User Manual

APPENDIX A: SYSTEM-RESOURCE
20.
ALLOCATIONS

Interrupt Request (IRQ) Lines

20.1
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.
Some PC/104 add-on board manufacturers do not follow the P996 Specification and allow
shareable interrupts. If you want to use such PC/104 boards with Kontron devices, contact
the manufacturer of the add-on board and ask about switching to non interrupt sharing.
IRQ # Use
0 Timer0
1 Keyboard
2 Slave PIC
3 COM2
4 COM1
5 Ethernet
6 FDC
7 LPT1
8 RTC
9 Matrix
Keyboard
10
11
12 PS/2 Mouse
13 FPU
14 IDE0
15
Notes:
(1) If the Used For device is disabled in setup, the corresponding interrupt is available for
other devices.
(2) You can configure the Ethernet controller for another IRQ by using the setup tool;
however, you cannot disable the Ethernet controller.
(3) You can assign LPT1 IRQ5, but avoid a conflict with the Ethernet IRQ assignment by
first changing its interrupt.
(4) If PS/2 mouse is enabled in setup the signal IRQ12 on the PC/104 bus becomes
MSDAT.
System Resource Allocations
Available Comment
No
No
No
No Note (1)
No Note (1)
No Note (2)
Note (3)
No Note (1)
No Note (1)
Note (3)
No
No Note (1)
Yes
Yes
No Note (1)
Note (4)
No
No Note (1)
Yes
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Kontron
MOPS/386A User's Guide