Interrupt Level Assignments - NEC PowerMate Pro 2180 User Manual

The interrupt levels are described in the following table.
Interrupt-level assignments 0 through 15 are in order of
decreasing priority. See Chapter 4, NEC Drivers and
Utilities, for information on changing the interrupts using
Setup.

Interrupt Level Assignments

Interrupt Priority Interrupt Device
NMI I/O channel check
IRQ00 Reserved, Interval Timer
IRQ01 Reserved, Keyboard buffer full
IRQ02 Reserved, Cascade interrupt from slave
IRQ03 Serial Port 2
IRQ04 Serial Port 1
IRQ05 User (audio on multimedia configurations)
IRQ06 Diskette Drive Controller
IRQ07 Parallel Port 1
IRQ08 Real-time clock
IRQ09 User (audio on multimedia
configurations)
IRQ10* User (SCSI board for SCSI configurations)
IRQ11* Video Board
IRQ12 On-board mouse port (available if no PS/2
mouse)
IRQ13 Reserved, Math Coprocessor
IRQ14 Primary IDE
IRQ15 Secondary IDE if present, or else user available
*These slots are selected and used by the installed expansion boards.
Understanding System Features 3-5