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Appendix A
Table A.2: UNO-2182 Interrupt Assignment
Interrupt No.
Interrupt Source
NMI
Parity error detected
IRQ 0
Interval timer
IRQ 1
Keyboard
IRQ 2
Interrupt from controller 2 (cascade)
IRQ 3
COM2
IRQ 4
COM1
IRQ 5
COM4 (Independent IRQ)
IRQ 6
Diskette controller (FDC)
IRQ 7
PCMCIA
IRQ 8
Real-time clock
IRQ 10
COM3 (Independent IRQ)/COM3&COM4 Share IRQ
IRQ 11
Reserved for watchdog timer
IRQ 12
PS/2 mouse
IRQ 13
INT from co-processor
IRQ 14
Primary IDE
IRQ 15
Secondary IDE
Note:
USB and Ethernet IRQ is set automatically by system