User manual

51 Appendix A
Table A.2: UNO-3072LInterrupt Assignments
Interrupt No. Interrupt Source
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 DI/O
IRQ 8 Real-time clock
IRQ 9 N/A
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