307013-003 Datasheet, PDF (528/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

SATA Controller Registers (D31:F2) (Desktop and Mobile Only)
12.3.1.4
PI—Ports Implemented Register (D31:F2)
Address Offset: ABAR + 0Ch–0Fh
Default Value: 00000000h
Attribute:
Size:
R/WO, RO
32 bits
This register indicates which ports are exposed to the ICH7. It is loaded by platform
BIOS. It indicates which ports that the device supports are available for software to
use. For ports that are not available, software must not read or write to registers within
that port.
12.3.1.5
Bit
Description
31:4 Reserved. Returns 0.
3
(Intel^®
ICH7R and
ICH7DH
Only)
Ports Implemented Port 3 (PI3) — R/WO.
0 = The port is not implemented.
1 = The port is implemented.
3 (Mobile Ports Implemented Port 3 (PI3) — RO.
Only) _{0 = The port is not implemented.}
Ports Implemented Port 2 (PI2)— R/WO.
2
0 = The port is not implemented.
1 = The port is implemented.
1
(ICH7R
and
ICH7DH
Only)
Ports Implemented Port 1 (PI1) — R/WO.
0 = The port is not implemented.
1 = The port is implemented.
1 (Mobile ^{Ports Implemented Port 1 (PI1) — RO.}
Only) 0 = The port is not implemented.
Ports Implemented Port 0 (PI0) — R/WO.
0
0 = The port is not implemented.
1 = The port is implemented.
VS—AHCI Version (D31:F2)
Address Offset: ABAR + 10h–13h
Default Value: 00010100h
Attribute:
Size:
RO
32 bits
This register indicates the major and minor version of the AHCI specification. It is BCD
encoded. The upper two bytes represent the major version number, and the lower two
bytes represent the minor version number. Example: Version 3.12 would be
represented as 00030102h. The current version of the specification is 1.10
(00010100h).
Bit
Description
31:16 Major Version Number (MJR) — RO. Indicates the major version is 1
15:0 Minor Version Number (MNR) — RO. Indicates the minor version is 10.
528
Intel ^® ICH7 Family Datasheet