| IRQ | Assignment |
|---|---|
| 0 | System Timer |
| 1 | Keyboard |
| 2 | Cascaded with IRQ 9 |
| 3 | Default COM2 and COM4 |
| 4 | Default COM1 and COM3 |
| 5 | LPT2 |
| 6 | Floppy Drive Controller |
| 7 | LPT1 |
| 8 | Real Time Clock |
| 9 | SEE 2 |
| 10 | Open |
| 11 | Open |
| 12 | PS/2 mouse or Open |
| 13 | Math Coprocessor |
| 14 | Primary Hard Drive controller |
| 15 | Secondary Hard Drive controller |
Created
April 7, 2017 23:29
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ISA IRQ assignments
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