Device Mapping
6-3
DIGITAL Server 5220
Server Interrupt Levels
Interrupt Number Interrupt Source
IRQ1 Keyboard controller
IRQ3 COM2, COM4 (if enabled)
IRQ4 COM1, COM3 (if enabled)
IRQ6 Diskette controller (if enabled)
IRQ7 LPT1, LPT2, LPT3 (if enabled)
IRQ12 Mouse interrupt
IRQ13 Math co-processor
