Award MI945 User Manual
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Contents
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APPENDIXMI945 User’s Manual55AppendixA. I/O Port Address MapEach peripheral device in the system is assigned a set of I/O portaddresses which also becomes the identity of the device. The followingtable lists the I/O port addresses used.Address Device Description000h - 01Fh DMA Controller #1020h - 03Fh Interrupt Controller #1040h - 05Fh Timer060h - 06Fh Keyboard Controller070h - 07Fh Real Time Clock, NMI080h - 09Fh DMA Page Register0A0h - 0BFh Interrupt Controller #20C0h - 0DFh DMA Controller #20F0h Clear Math Coprocessor Busy Signal0F1h Reset Math Coprocessor1F0h - 1F7h IDE Interface278 - 27F Parallel Port #2(LPT2)2F8h - 2FFh Serial Port #2(COM2)2B0 - 2DF Graphics adapter Controller378h - 3FFh Parallel Port #1(LPT1)360 - 36F Network Ports3B0 - 3BF Monochrome & Printer adapter3C0 - 3CF EGA adapter3D0 - 3DF CGA adapter3F0h - 3F7h Floppy Disk Controller3F8h - 3FFh Serial Port #1(COM1) |
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