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Appendix B. Address Mapping
IO Address Map
I/O address Range Description
000-01F DMA Controller
020-021 Interrupt Controller
040-05F System time
060-06F Keyboard Controller
070-07F System CMOS/Real time Clock
080-09F DMA Controller
0A0-0A1 Interrupt Controller
0C0-0DF DMA Controller
0F0-0FF Numeric data processor
1F0-1F7 Primary IDE Channal
2F8-2FF Serial Port 2 (COM2)
378-37F Parallel Printer Port 1 (LPT1)
3B0-3BF Intel(R) 82815 Graphics Controller
3C0-3DF Intel(R) 82815 Graphics Controller
3F6-3F6 Primary IDE Channal
3F7-3F7 Standard floopy disk controller
3F8-3FF Serial Port 1 (COM1)