QG5000XSL9TH Datasheet, PDF (76/458 Pages) Intel Corporation – Intel 5000X Chipset Memory Controller Hub (MCH)

Register Description
3.8.1.3.1
3.8.1.3.2
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
0, 2-3, 8, 9
0
08h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
4-5
0
08h
Intel 5000Z Chipset
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
Device:
Function:
Offset:
Version:
4-7
0
08h
Intel 5000P Chipset
16
0, 2
08h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset,
17
0
08h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
21
0
08h
Intel 5000P Chipset, Intel 5000V Chipset, Intel 5000Z Chipset
22
0
08h
Intel 5000P Chipset
Bit
Attr
Default
Description
3:0 if (DEV 0)
{RWOST}
else
{RO}
endif
0h Minor Revision
Incremented for each stepping which does not modify all masks. Reset for
each major revision.
0x0: M0 stepping
0x1: M1 stepping
0x2: M2 stepping
Others: Reserved
Note: The Metal steppings indicated are a subset of the Major revision. For
example, an A stepping with M0 as minor revision typically means A0.
Notes:
1. Even though the contents of the RID have an attribute as “RO”, it is ultimately dictated by the comparator flop
(attribute “RWOST” in Device 0, function 0) that selects between the CRID/SRID outputs. The comparator is
set by BIOS/SW writing a specific value to offset 08h in dev0, fn 0 based on Figure 3-3.
Stepping Revision ID (SRID)
The SRID is a 4-bit hardwired value assigned by Intel, based on product’s stepping. The
SRID is not a directly addressable PCI register. The SRID value is reflected through the
RID register when appropriately addressed. The 4 bits of the SRID are reflected as the
two least significant bits of the major and minor revision field respectively. See
Figure 3-3
Compatible Revision ID (CRID)
The CRID is an 4-bit hardwired value assigned by Intel during manufacturing process.
Normally, the value assigned as the CRID will be identical to the SRID value of a
previous stepping of the product with which the new product is deemed “compatible”.
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Intel^® 5000X Chipset Memory Controller Hub (MCH) Datasheet