NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 469
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
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SATA Controller Registers (D31:F2)
12.1.6
12.1.6.1
12.1.6.2
Intel
®
ICH8 Family Datasheet
PI—Programming Interface Register (SATA–D31:F2)
When Sub Class Code Register (D31:F2:Offset 0Ah) = 01h
Address Offset: 09h
Default Value:
When Sub Class Code Register (D31:F2:Offset 0Ah) = 04h
Address Offset: 09h
Default Value:
6:4
7:0
Bit
Bit
7
3
2
1
0
This read-only bit is a 1 to indicate that the ICH8 supports bus master operation
Reserved. Will always return 0.
Secondary Mode Native Capable (SNC) — RO.
0 = Secondary controller only supports legacy mode.
1 = Secondary controller supports both legacy and native modes.
When MAP.MV (D31:F2:Offset 90:bits 1:0) is any value other than 00b, this bit reports
as a 0. When MAP.MV is 00b, this bit reports as a 1.
Secondary Mode Native Enable (SNE) — R/W / RO.
Determines the mode that the secondary channel is operating in.
0 = Secondary controller operating in legacy (compatibility) mode
1 = Secondary controller operating in native PCI mode.
When MAP.MV (D31:F2:Offset 90:bits 1:0) is any value other than 00b, this bit is read-
only (RO). Software is responsible for clearing this bit before entering combined mode.
When MAP.MV is 00b, this bit is read/write (R/W).
If this bit is set by software, then the PNE bit (bit 0 of this register) must also be set by
software. While in theory these bits can be programmed separately, such a
configuration is not supported by hardware.
Primary Mode Native Capable (PNC) — RO.
0 = Primary controller only supports legacy mode.
1 = Primary controller supports both legacy and native modes.
When MAP.MV (D31:F2:Offset 90:bits 1:0) is any value other than 00b, this bit reports
as a 0. When MAP.MV is 00b, this bit reports as a 1
Primary Mode Native Enable (PNE) — R/W / RO.
Determines the mode that the primary channel is operating in.
0 = Primary controller operating in legacy (compatibility) mode.
1 = Primary controller operating in native PCI mode.
When MAP.MV (D31:F2:Offset 90:bits 1:0) is any value other than 00b, this bit is read-
only (RO). Software is responsible for clearing this bit before entering combined mode.
When MAP.MV is 00b, this bit is read/write (R/W).
If this bit is set by software, then the SNE bit (bit 2 of this register) must also be set by
software. While in theory these bits can be programmed separately, such a
configuration is not supported by hardware.
Interface (IF) — RO.
When configured as RAID, this register becomes read only 0.
See bit description
00h
Description
Description
Attribute:
Size:
Attribute:
Size:
R/W, RO
8 bits
RO
8 bits
469
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