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82801DB Datasheet, PDF (310/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4) | |||
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LPC Interface Bridge Registers (D31:F0)
9.1.32
FWH_SEL1âFWH Select 1 Register (LPC I/FâD31:F0)
Offset Address: E8h
Default Value: 00112233h
Attribute:
Size:
R/W, RO
32 bits
Bit
Description
31:28
27:24
FWH_F8_IDSEL â RO. IDSEL for two 512 KB FWH memory ranges and one 128 KB memory
range. This field is fixed at 0000. The IDSEL programmed in this field addresses the following
memory ranges:
FFF8 0000hâFFFF FFFFh
FFB8 0000hâFFBF FFFFh
000E 0000hâ000F FFFFh
FWH_F0_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
FFF0 0000hâFFF7 FFFFh
FFB0 0000hâFFB7 FFFFh
23:20
FWH_E8_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
FFE8 0000hâFFEF FFFFh
FFA8 0000hâFFAF FFFFh
19:16
15:12
FWH_E0_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
FFE0 0000hâFFE7 FFFFh
FFA0 0000hâFFA7 FFFFh
FWH_D8_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
FFD8 0000hâFFDF FFFFh
FF98 0000hâFF9F FFFFh
FWH_D0_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
11:8
FFD0 0000hâFFD7 FFFFh
FF90 0000hâFF97 FFFFh
FWH_C8_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
7:4
FFC8 0000hâFFCF FFFFh
FF88 0000hâFF8F FFFFh
FWH_C0_IDSEL â R/W. IDSEL for two 512 KB FWH memory ranges. The IDSEL programmed in
this field addresses the following memory ranges:
3:0 FFC0 0000hâFFC7 FFFFh
FF80 0000hâFF87 FFFFh
310
Intel® 82801DB ICH4 Datasheet
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