876784 Intel, 876784 Datasheet - Page 495

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

SATA Controller Registers (D31:F2) (Desktop and Mobile Only)
12.1.7
12.1.8
12.1.9
Intel
®
ICH7 Family Datasheet
SCC—Sub Class Code Register (SATA–D31:F2)
Address Offset: 0Ah
Default Value:
BCC—Base Class Code Register
(SATA–D31:F2SATA–D31:F2)
Address Offset: 0Bh
Default Value:
PMLT—Primary Master Latency Timer Register
(SATA–D31:F2)
Address Offset: 0Dh
Default Value:
7:0
7:0
7:0
Bit
Bit
Bit
Sub Class Code (SCC)
This field specifies the sub-class code of the controller, per the table below:
Intel
ICH7-M Only:
Intel
ICH7DH, and ICH7-M DH):
Base Class Code (BCC) — RO.
01h = Mass storage device
Master Latency Timer Count (MLTC) — RO.
00h = Hardwired. The SATA controller is implemented internally, and is not arbitrated
as a PCI device, so it does not need a Master Latency Timer.
(D31:F2:Offset 90h:bit 7:6)
SCC Register Attribute
(D31:F2:Offset 90h:bit 7:6)
®
®
ICH7 Desktop Only:
Matrix Storage Technology Enabled ICH7 components Only (ICH7R,
See bit description
01h
00h
MAP.SMS
RO
MAP.SMS
00b
01b
10b
00b
01b
Scc Register Value
01h (IDE Controller)
Description
Description
Description
04h (RAID Controller)
06h (AHCI Controller)
SCC Register Value
01h (IDE Controller)
06h (AHCI Controller)
SCC Register Value
Attribute:
Size:
Attribute:
Size:
Attribute:
Size:
01h (IDE Controller)
RO
8 bits
RO
8 bits
RO
8 bits
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