I/O address (hex) | System function (shipping configuration) | |
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220 | - 22F | Entertainment audio |
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230 | - 26D | Unused |
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26E - 26 | Unused | |
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278 | - 27F | Unused |
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280 | - 2AB | Unused |
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2A0 - 2A7 | Unused | |
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2A8 - 2E7 | Unused | |
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2E8 - 2EF | Reserved serial port | |
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2F0 - 2F7 | Unused | |
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2F8 - 2FF | Infrared port | |
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300 | - 31F | Unused |
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320 | - 36F | Unused |
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370 | - 377 | Secondary diskette drive controller |
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378 | - 37F | Parallel port (LPT1/default) |
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380 | - 387 | Unused |
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388 | - 38B | FM |
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38C - 3AF | Unused | |
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3B0 - 3BB | VGA | |
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3BC - 3BF | Reserved (parallel port/no EPP support) | |
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3C0 - 3DF | VGA | |
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3E0 - 3E1 | PC Card controller in CPU | |
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3E2 - 3E3 | Unused | |
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3E8 - 3EF | Internal modem | |
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3F0 - 3F7 | “A” diskette controller | |
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3F8 - 3FF | Serial port (COM1/default) | |
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CF8 - CFB | PCI configuration index register | |
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CFC - CFF | PCI configuration data register | |
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System I/O address specifications 115