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 ( |
3 | Available |
4 | Cascade for DMA Controller 1 |
5 | Available |
6 | Available |
7 | Available |
Board Configuration | 24 |
