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Interrupt Controllers
The following table shows default interrupt level
assignments 0 through 15.
CHANNEL
IRQ00
IRQ01
IRQ02
IRQ03
IRQ04
IRQ05
IRQ06
IRQ07
IRQ08
IRQ09
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
CHANNEL
DMA00
DMA01
DMA02
DMA03
DMA04
IRQ Settings
DEVICE
System Timer
Keyboard
Second Interrupt Controller
COM2 (internal IR port)
COM1 (internal serial port)
Sound Chip, MIDI (default)
Floppy Disk Drive Controller
LPT1 Default (internal printer port)
Real Time Clock
USB
Not Used
CardBus controller
Internal Glide Pointer or External PS/2
Mouse
Co-Processor
Primary IDE (Hard Disk Drive)
Secondary IDE (CD-ROM)
DMA Settings
DEVICE
FIR
Sound Chip (default)
Floppy Disk Drive Controller
Sound Chip
Cascade from DMA Controller
Specifications B-7
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