82NM10 Datasheet, PDF (473/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

SATA Controller Registers (D31:F2)
Bit
Description
4 Capabilities List (CAP_LIST) — RO. This bit indicates the presence of a capabilities
list. The minimum requirement for the capabilities list must be PCI power management
for the SATA controller.
3 Interrupt Status (INTS) — RO. Reflects the state of INTx# messages.
0 = Interrupt is cleared (independent of the state of Interrupt Disable bit in the
command register [offset 04h]).
1 = Interrupt is to be asserted
2:0 Reserved
15.1.5
RID—Revision Identification Register (SATA—D31:F2)
Offset Address: 08h
Default Value: See bit description
Bit
7:0 Revision ID — RO.
Attribute:
Size:
Description
RO
8 bits
15.1.6 PI—Programming Interface Register (SATA–D31:F2)
15.1.6.1 When Sub Class Code Register (D31:F2:Offset 0Ah) = 01h
Address Offset: 09h
Default Value: See bit description
Attribute:
Size:
R/W, RO
8 bits
Bit
Description
7 This read-only bit is a 1 to indicate that the Chipset supports bus master operation
6:4 Reserved. Will always return 0.
3 Secondary Mode Native Capable (SNC) — RO.
0 = Secondary controller only supports legacy mode.
1 = Secondary controller supports both legacy and native modes.
The MAP.MV (D31:F2:Offset 90:bits 1:0) must be program as 00b, and this bit is reports as a 1.
2 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. The MAP.MV must be
program as 00b, and 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.
1 Primary Mode Native Capable (PNC) — RO.
0 = Primary controller only supports legacy mode.
1 = Primary controller supports both legacy and native modes.
The MAP.MV (D31:F2:Offset 90:bits 1:0) must be program as 00b, and this bit is reports as a 1.
Datasheet
473