82801CA Datasheet, PDF (294/521 Pages) Intel Corporation – I/O Controller Hub 3-S (ICH3-S)

LPC I/F Bridge Registers (D31:F0)
9.1.31
FWH_SEL1—FWH Select 1 Register (LPC I/F—D31:F0)
Offset Address: E8h
Default Value: 00112233h
Attribute:
Size:
R/W
32 bits
Bit
Description
31:28
FWH_F8_IDSEL—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 0000h–FFFF FFFFh
FFB8 0000h–FFBF FFFFh
000E 0000h–000F FFFFh
27:24
FWH_F0_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
The IDSEL programmed in this field addresses the following memory ranges:
FFF0 0000h–FFF7 FFFFh
FFB0 0000h–FFB7 FFFFh
23:20
FWH_E8_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
The IDSEL programmed in this field addresses the following memory ranges:
FFE8 0000h–FFEF FFFFh
FFA8 0000h–FFAF FFFFh
19:16
FWH_E0_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
The IDSEL programmed in this field addresses the following memory ranges:
FFE0 0000h–FFE7 FFFFh
FFA0 0000h–FFA7 FFFFh
15:12
FWH_D8_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
The IDSEL programmed in this field addresses the following memory ranges:
FFD8 0000h–FFDF FFFFh
FF98 0000h–FF9F FFFFh
FWH_D0_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
11:8
The IDSEL programmed in this field addresses the following memory ranges:
FFD0 0000h–FFD7 FFFFh
FF90 0000h–FF97 FFFFh
FWH_C8_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
7:4
The IDSEL programmed in this field addresses the following memory ranges:
FFC8 0000h–FFCF FFFFh
FF88 0000h–FF8F FFFFh
FWH_C0_IDSEL—R/W. IDSEL for two 512 KB FWH memory ranges.
3:0
The IDSEL programmed in this field addresses the following memory ranges:
FFC0 0000h–FFC7 FFFFh
FF80 0000h–FF87 FFFFh
294
Intel^® 82801CA ICH3-S Datasheet