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Functional Description
CPB902
C P B 9 0 2 U s e r M a n u a l
33
© 2 0 0 8 F a s t w e l v . 1 . 5 b E
Interrupt request configuration is performed in BIOS Setup, see description in sections
and
.
Table 4.4:
Interrupt Settings
IRQ
Default Source
Alternative Source
IRQ0
System timer
–
IRQ1
Keyboard (main port)
Matrix keypad
IRQ2
Cascading to IRQ9
–
IRQ3
COM2
–
IRQ4
COM1
–
IRQ5
PC/104
FBUS controller
IRQ6
FDD
PC/104
IRQ7
PC/104
LPT1
IRQ8
RTC
–
IRQ9
Serial interfaces COM3 – COM6
PC/104
IRQ10 –
PCI bus devices
IRQ11 PC/104
Serial interfaces COM3 – COM6
IRQ12 Mouse
PC/104
IRQ13
Reserved for math. coprocessor
–
IRQ14 Primary
IDE
controller
External optoisolated input or PC/104
IRQ15
Secondary
IDE
controller
Flash-disk or PC/104