NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 333
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NH82801HEM S LB9B
Manufacturer Part Number
NH82801HEM S LB9B
Description
Manufacturer
Intel
Datasheet
1.NH82801HEM_S_LB9B.pdf
(890 pages)
Specifications of NH82801HEM S LB9B
Lead Free Status / RoHS Status
Compliant
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LPC Interface Bridge Registers (D31:F0)
9.1.19
Intel
®
ICH8 Family Datasheet
LPC_I/O_DEC—I/O Decode Ranges Register
(LPC I/F—D31:F0)
Offset Address: 80h
Default Value:
15:13
11:10
9:8
6:4
2:0
Bit
12
7
3
Reserved
FDD Decode Range — R/W. Determines which range to decode for the FDD Port
0 = 3F0h – 3F5h, 3F7h (Primary)
1 = 370h – 375h, 377h (Secondary)
Reserved
LPT Decode Range — R/W. This field determines which range to decode for the LPT
Port.
00 = 378h – 37Fh and 778h – 77Fh
01 = 278h – 27Fh (port 279h is read only) and 678h – 67Fh
10 = 3BCh –3BEh and 7BCh – 7BEh
11 = Reserved
Reserved
COMB Decode Range — R/W. This field determines which range to decode for the
COMB Port.
000 = 3F8h – 3FFh (COM1)
001 = 2F8h – 2FFh (COM2)
010 = 220h – 227h
011 = 228h – 22Fh
100 = 238h – 23Fh
101 = 2E8h – 2EFh (COM4)
110 = 338h – 33Fh
111 = 3E8h – 3EFh (COM3)
Reserved
COMA Decode Range — R/W. This field determines which range to decode for the
COMA Port.
000 = 3F8h – 3FFh (COM1)
001 = 2F8h – 2FFh (COM2)
010 = 220h – 227h
011 = 228h – 22Fh
100 = 238h – 23Fh
101 = 2E8h – 2EFh (COM4)
110 = 338h – 33Fh
111 = 3E8h – 3EFh (COM3)
0000h
Description
Attribute:
Size:
R/W
16 bit
333
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