NEC VERSA FX Service And Reference Manual page 89

Interrupt Controllers
Using interrupts, hardware can request software services. If non-Plug and Play software is being
used, the interrupt may need to be moved for software application or driver compatibility. Some
interrupts cannot be moved. Fifteen interrupts can be used with a cascade connection of
8259INTC x 2. The table shows default interrupt level assignments 0 through 15, in order of
decreasing priority.
IRQ
IRQ00
IRQ01
IRQ02
IRQ03
IRQ04
IRQ05
IRQ06
IRQ07
IRQ08
IRQ09
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
9-8 Specifications
System Interrupts
Device
Internal Timer 1
Keyboard
PIC
Available/IR
Available/Serial
CardBus/Sound/Modem
Diskette Drive
LPT
Real-time Clock
Available
PC CardBus/LAN/Video/USB
Available
PS/2 Mouse
Numeric Data Processor
IDE Controller
Available