Appendix
000003F8 - 000003FF | Communications Port |
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00000778 - 0000077B | Printer Port |
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00000A79 - 00000A79 | ISAPNP Read Data Port |
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00000D00 - 0000FFFF | PCI Bus |
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0000FC00 - 0000FCFF | Realtek RTL8139/810x family Fast Ethernet NIC |
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0000FF00 - 0000FF0F | Standard Dual Channel PCI IDE Controller |
4.2 Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the service required. The following table shows the IRQ used by the devices on board.
Level | Function |
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IRQ 01 | PC/AT Enhanced PS/2 Keyboard |
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IRQ 03 | Communications Port |
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IRQ 04 | Communications Port |
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IRQ 05 | Standard Enhanced PCI to USB Host Controller |
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IRQ 05 | Standard Open HCD USB Host Controller |
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IRQ 06 | Standard Floppy Disk Controller |
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IRQ 10 | Advanced Micro Devices Win 2K/Win Graphics Driver |
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IRQ 10 | Geode LX AES Crypto Driver |
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IRQ 11 | Realtek RTL8139/810x Family Fast Ethernet NIC |
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IRQ 12 | Microsoft PS/2 Mouse |
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IRQ 14 | Primary IDE Channel |
4.3 DMA Map
DMA Channel | Device Description |
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02 | Standard Floppy Disk Controller |
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