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SYSTEM INTERRUPTS (IRQS)
IRQ Description
IRQ0 System Timer
IRQ1 Keyboard
IRQ2 Cascade to IRQ Controller
IRQ3 COM2/COM4
IRQ4 COM1/COM3
IRQ5 Unused
IRQ6 Floppy Drive (FDC)
IRQ7 Printer
IRQ8 Real Time Clock
IRQ9 Unused
IRQ10 Unused
IRQ11 Unused
IRQ12 PS/2 Mouse
IRQ13 FPU
IRQ14 Primary IDE
IRQ15 Secondary IDE
DMA CHANNEL ASSIGNMENTS
Channel Function
0 Available
1 Available
2 Floppy disk ( 8-bit transfer )
3 Available
4 Cascade for DMA Controller 1
5 Available
6 Available
7 Available
Board Configuration 24