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Miscellaneous Technical Information
87
0377 Diskette drive channel 2 command port
0377 (bit 7) Diskette drive change, channel 2
0377 (bits 6:0) Secondary IDE controller status port
0378 - 037F LPT1
0388 - 038D AdLib (FM synthesizer)
03B4 - 03B5 Video (VGA)
03BA Video (VGA)
03C0 - 03CA Video (VGA)
03CC Video (VGA)
03CE - 03CF Video (VGA)
03D4 - 03D5 Video (VGA)
03DA Video (VGA)
03E8 - 03EF COM3
03F0 - 03F5 Standard diskette drive controller, channel 1
03F6 Primary IDE channel command port
03F7 (Write) Standard diskette drive command, channel 1
03F7 (bit 7) Standard diskette disk change, channel 1
03F7 (bits 6:0) Primary IDE channel status port
03F8 - 03FF COM1
04D0 - 04D1 Edge/level-triggered PIC
0530 - 0537 Windows sound system
0604 - 060B Windows sound system
LPTn + 400h ECP port, LPTn base address + 400h
0CF8 - 0CFB
*
PCI configuration address register
0CF9
†
Turbo and reset control register
0CFC - 0CFF PCI configuration data register
0E80 - 0E87 Windows sound system
0F40 - 0F47 Windows sound system
0F86 - 0F87 Yamaha OPL3-SA configuration
FF00 - FF07 IDE bus master register
FFA0 - FFA7 Primary bus master IDE registers
FFA8 - FFAF Secondary bus master IDE registers
* D word access only.
† Byte access only.
Address Range
(hex)
Description
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