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Interrupt | I/O APIC | Description |
| Level |
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IRQ6 | INT6 | Diskette port |
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IRQ7 | INT7 | Parallel port |
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IRQ8_L | INT8 | RTC interrupt |
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IRQ9 | INT9 | Signal control interrupt (SCI) used by |
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| system |
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IRQ10 | INT10 |
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IRQ11 | INT11 |
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IRQ12 | INT12 | Mouse interrupt |
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IRQ13 | INT13 | |
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IRQ14 | INT14 | Compatibility IDE interrupt from primary channel IDE devices 0 and 1 |
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IRQ15 | INT15 |
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SMI_L |
| System management interrupt - general purpose indicator sourced |
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| through the PID to the processors |
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|
DMA usage
The following table lists the direct memory access (DMA) channels that the system typically uses and which ones are available for use by
DMA | Resource |
0 | Cascade |
|
|
1 | Available |
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2 | Floppy Controller |
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3 | Available |
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4 | Redirect Cascade |
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5 | Available |
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|
6 | Available |
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7 | Available |
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120System Specifications