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BIOS Addresses
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The IRQ address mappings shown here are for a basic configuration. The resources used by the PC Workstation may vary, depending on which accessory cards are bundled with the PC Workstation. Resources are allocated by the system BIOS or the Plug and Play operating system.
Q‘Y ts q | IRQ0 | System timer |
XK e½zpx½” | IRQ1 | Keyboard controller |
| IRQ2 | Free |
| IRQ3 | COM2, COM4 |
| IRQ4 | COM1, COM3 |
| IRQ5 |
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| IRQ6 | Flexible disk drive controller |
| IRQ7 | LPT1 |
| IRQ8 | |
| IRQ9 |
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| IRQ10 |
|
| IRQ11 |
|
| IRQ12 | Mouse |
| IRQ13 | Not connected |
| IRQ14 | Integrated IDE controller (primary) |
| IRQ15 | Integrated IDE controller (secondary) |
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