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240 AMD Geode™ SC2200 Processor Data Book
Core Logic Module - Bridge, GPIO, and LPC Registers - Function 0
32580B
1 LPC Serial Port 0 Addressing. Serial Port 0 addresses. See bit 16 for decode.
Address selection made via F0BAR1+I/O Offset 14h[4:2].
0 LPC Parallel Port Addressing. Parallel Port addresses. See bit 16 for decode.
Address selection made via F0BAR1+I/O Offset 14h[1:0].
Offset 14h-17h LAD_D0 — LPC Address Decode 0 Register (R/W) Reset Value: 00080020h
31:23 Reserved.
22:19 LPC Game Port 1 Address Select. Selects I/O Port:
0000: 200h 0100: 204h 1000: 208h 1100: 20Ch
0001: 201h 0101: 205h 1001: 209h 1101: 20Dh
0010: 202h 0110: 206h 1010: 20Ah 1110: 20Eh
0011: 203h 0111: 207h 1011: 20Bh 1111: 20Fh
Selected address range is enabled via F0BAR1+I/O Offset 10h[8].
18:15 LPC Game Port 0 Address Select. Selects I/O Port:
0000: 200h 0100: 204h 1000: 208h 1100: 20Ch
0001: 201h 0101: 205h 1001: 209h 1101: 20Dh
0010: 202h 0110: 206h 1010: 20Ah 1110: 20Eh
0011: 203h 0111: 207h 1011: 20Bh 1111: 20Fh
Selected address range is enabled via F0BAR1+I/O Offset 10h[7].
14 LPC Floppy Disk Controller Address Select. Selects I/O Port:
0: 3F0h-3F7h.
1: 370h-377h.
Selected address range is enabled via F0BAR1+I/O Offset 10h[6].
13:12 LPC Microsoft Sound System (MSS) Address Select. Selects I/O Port:
00: 530h-537h 10: E80h-E87h
01: 604h-60Bh 11: F40h-F47h
Selected address range is enabled via F0BAR1+I/O Offset 10h[5].
11:10 LPC MIDI Address Select. Selects I/O Port:
00: 300h-301h 10: 320h-321h
01: 310h-311h 11: 330h-331h
Selected address range is enabled via F0BAR1+I/O Offset 10h[4].
9:8 LPC Audio Address Select. Selects I/O Port:
00: 220h-233h 10: 260h-273h
01: 240h-253h 11: 280h-293h
Selected address range is enabled via F0BAR1+I/O Offset 10h[3].
7:5 LPC Serial Port 1 Address Select. Selects I/O Port:
000: 3F8h-3FFh 010: 220h-227h 100: 238h-23Fh 110: 338h-33Fh
001: 2F8h-2FFh 011: 228h-22Fh 101: 2E8h-2EFh 111: 3E8h-3EFh
Selected address range is enabled via F0BAR1+I/O Offset 10h[2].
4:2 LPC Serial Port 0 Address Select. Selects I/O Port:
000: 3F8h-3FFh 010: 220h-227h 100: 238h-23Fh 110: 338h-33Fh
001: 2F8h-2FFh 011: 228h-22Fh 101: 2E8h-2EFh 111: 3E8h-3EFh
Selected address range is enabled via F0BAR1+I/O Offset 10h[1].
1:0 LPC Parallel Port Address Select. Selects I/O Port:
00: 378h-37Fh (+778h-77Fh for ECP) 01: 278h-27Fh (+678h-67Fh for ECP) (Note)
10: 3BCh-3BFh (+7BCh-7BFh for ECP) 11: Reserved
Selected address range is enabled via F0BAR1+I/O Offset 10h[0].
Note: 279h is read only, writes are forwarded to ISA for PnP.
Table 6-31. F0BAR1+I/O Offset: LPC Interface Configuration Registers (Continued)
Bit Description