HH80556KH0364M S LAGD Intel, HH80556KH0364M S LAGD Datasheet - Page 93

• Manufacturer Part Number: HH80556KH0364M S LAGD
• Manufacturer: Intel

Specifications of HH80556KH0364M S LAGD

• Rad Hardened: No
• Lead Free Status / RoHS Status: Compliant

Register Description—Intel
3.8.1.1
3.8.1.2
3.8.1.3
July 2009
Order Number: 318378-005US
VID - Vendor Identification Register
The VID Register contains the vendor identification number. This 16-bit register,
combined with the Device Identification Register uniquely identifies the manufacturer
of the function with in the MCH. Writes to this register have no effect.
DID - Device Identification Register
This 16-bit register combined with the Vendor Identification register uniquely identifies
the Function within the MCH. Writes to this register have no effect. See
“Functions Specially Handled by Intel® 5100 Memory Controller Hub Chipset”
DID of each MCH function.
RID - Revision Identification Register
This register contains the revision number of the MCH. The Revision ID (RID) is a
traditional 8-bit Read Only (RO) register located at offset 08h in the standard PCI
header of every PCI/PCI Express* compatible device and function. Previously, a new
value for RID was assigned for chipsets for every stepping. There is a need to provide
an alternative value for software compatibility when a particular driver or patch unique
to that stepping or an earlier stepping is required, for instance, to prevent Windows
software from flagging differences in RID during device enumeration. The solution is to
implement a mechanism to read one of two possible values from the RID register:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
1. Stepping Revision ID (SRID): This is the default power-on value for mask/metal
15:0
15:0
Bit
Bit
steppings
RWO
®
Attr
Attr
RO
5100 MCH Chipset
0, 2-7, 8
0
00h
16
0, 1, 2
00h
21, 22
0
00h
0, 2-7, 8
0
02h
16
0, 1, 2
02h
21, 22
0
02h
Intel® 5100
Handled by
“Functions
Controller
Table 28,
Specially
Chipset.”
Default
Default
Memory
8086h
Hub
See
Vendor Identification Number
The value assigned to Intel.
Device Identification Number
Identifies each function of the MCH
Description
Description
Intel
®
5100 Memory Controller Hub Chipset
Table 28,
for the
Datasheet
93