
CP6000
Configuration
ID 27942, Rev. 05
© 2005 Kontron Modular Computers GmbH
Page 4 - 9
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2.05.UG.VC.051020/17275
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P R E L I M I N A R Y
4.2
Interrupts
The CP6000 board uses the standard AT IRQ routing (8259 controller).
This interrupt routing is the default, but can be modified via the BIOS.
Table 4-12: Interrupt Setting
IRQ
PRIORITY
STANDARD FUNCTION
IRQ0
1
System Timer
IRQ1
2
Keyboard Controller
IRQ2
--
Input of the second IRQ controller (IRQ8-IRQ15)
IRQ3
11
COM2
IRQ4
12
COM1
IRQ5
13
Watchdog
IRQ6
14
Floppy Disk Controller
IRQ7
15
Reserved for IPMI
IRQ8
3
System Real Time Clock
IRQ9
4
PCI or APIC
IRQ10
5
PCI
IRQ11
6
PCI
IRQ12
7
PCI or PS/2 mouse
IRQ13
8
Coprocessor error
IRQ14
9
Primary hard disk
IRQ15
10
Secondary hard disk
NMI
Watchdog
Warning!
IRQ5 should normally have only
one
source enabled, otherwise improper
system operation may result.
If more than one source is required to be enabled, contact Kontron Modu-
lar Computers’ Technical Support before implementing the IRQs.
For events that are not time critical, such as ENUM, DERATE, etc., polling
should be considered instead of using an IRQ.
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