System DMA Specification
Legacy Mode |
| Power Management |
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DMA0 |
| Free |
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DMA1 |
| Free |
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DMA2 |
| Free |
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DMA3 |
| Free |
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DMA4 |
| Direct memory access controller |
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DMA5 |
| Free |
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DMA6 |
| Free |
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DMA7 |
| Free |
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System Interrupt Specification |
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Hardware IRQ |
| System Function |
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IRQ0 | System timer |
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IRQ1 | Standard PS/2 keyboard |
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IRQ2 | Not in use |
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IRQ3 | Not in use |
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IRQ5 | Not in use |
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IRQ6 | Not in use |
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IRQ7 | Not in use |
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IRQ8 | System CMOS/real time clock |
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IRQ9 | Not in use |
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IRQ10 | Not in use |
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IRQ11 | Not in use |
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IRQ12 | PS/2 port Touchpad |
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IRQ13 | Numeric data processor |
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IRQ14 | Not in use |
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IRQ15 | Not in use |
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Hardware Specifications and Configurations |
