User’s Manual
Appendix A :System Resource
Interrupt Controller
The
System IRQs are available to cards installed in the ISA expansion Bus first. Any remaining IRQs then may be assigned to this PCI Bus. You are able to use the Microsoft’s Diagnostic(MSD.EXE) utility include in Windows director to see their map.
IRQ | Assignment |
IRQ0 | System Timer Output |
IRQ1 | Keyboard |
IRQ2 | Interrupt rerouting from IRQ8 through |
| IRQ15 |
IRQ3 | Serial Port 2 |
IRQ4 | Serial Port 1 |
IRQ5 | USB Controller |
IRQ6 | Floppy Disk Controller |
IRQ7 | Parallel Port 1 |
IRQ8 | Real Time Clock |
IRQ9 | Ethernet Controller |
IRQ10 | Reserved |
IRQ11 | USB Controller |
IRQ12 | Mouse |
IRQ13 | Math Coprocessor |
IRQ14 | Primary IDE Controller |
IRQ15 | Secondary IDE Controller |
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DMA Channel Assignment:Channel 4 is by default used to cascade the two controllers
| Channel | Assignment |
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| DMA0 | Available fir PCI and ISA Slot |
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| DMA1 | Available for PCI And ISA Slot |
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| DMA2 | Floppy Disk Controller |
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| DMA3 | Available for PCI and ISA Slot |
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| DMA4 | Cascade |
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©2002 AEWIN Technologies Co., Ltd.. All rights reserved. | 50 | Ver 1.0. Jan. 2005 |