Intel 6 SERIES CHIPSET - DATASHEET 01-2011 - Page 414

Chipset Configuration Registers
414 Datasheet
Default Value: 00000000h Size: 32-bit
10.1.87 CIR28—Chipset Initialization Register 28
Offset Address: 3A84–3A87h Attribute: R/W
Default Value: 00000000h Size: 32-bit
10.1.88 CIR29—Chipset Initialization Register 29
Offset Address: 3A88–3A8Ch Attribute: R/W
Default Value: 00000000h Size: 32-bit
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Bit Description
31:0 CIR27 Field 1 — R/W. BIOS must program this field to 01041041h.
Bit Description
31:25 Reserved
24 CIR28 Field 3 — R/W. BIOS may write to this bit field.
23:19 Reserved
18 CIR28 Field 2 — R/W. BIOS may write to this bit field.
17:16 Reserved
15:0 CIR28 Field 1 — R/W. BIOS must program this field to 1001h.
Bit Description
31:0 CIR29 Field 1 — R/W. BIOS must program this field to 00000001h.