Lpc Fdd/Lpt Decode Ranges (Function 0) - Intel 460GX Software Developer’s Manual

Bit
3
2:0
11.1.24

LPC FDD/LPT Decode Ranges (Function 0)

Address:
Default Value:
Attributes:
Bit
7:5
4
3:2
1:0
Intel® 460GX Chipset Software Developer's Manual
Reserved.
Decode Range: The following table describes which range to decode for the COMA Port
Bits
000 3F8 - 3FF (COM 1)
001 2F8 - 2FF (COM 2)
010 220 - 227
011 228 - 22F
100 238 - 23F
101 2E8 - 2EF (COM 4)
110 338 - 33F
111 3E8 - 3EF (COM 3)
E1h
00h
Read/Write
Reserved.
Decode Range: The following table describes which range to decode for the FDD Port
Bits
0 3F0 - 3F5, 3F7 (Primary)
1 370 - 375, 377 (Secondary)
Reserved.
Decode Range: The following table describes which range to decode for the LPT Port
Bits
00 378 - 37F, 778-77F
01 278 - 27F (port 279 is read only), 678-
67F
10 3BC - 3BE, 7BC-7BE
11 Reserved.
LPC/FWH Interface Configuration
Description
Decode Range
Description
Decode Range
Decode Range
11-11