Processor Configuration Registers
Intel
®
Core
TM
i7-620LE/UE, i7-610E, i5-520E and Intel
®
Celeron
®
Processor P4500, P4505 Series
Datasheet Addendum
April 2010
76
Document Number: 323178-002
6.1.5
C0WRDATACTRL - Channel 0 Write Data Control
B/D/F/Type:
0/0/0/MCHBAR
Address Offset:
24D-24Fh
Default Value:
004111h
Access:
RW
Size:
24 bits
BIOS Optimal Default
00h
Table 19. Channel 0 Write Data Control Registers
Bit
Access
Default
Value
RST/
PWR
Description
23:16
RW
00h
Core
ECC bit invert vector (C0sd_cr_eccbitinv):
This vector operates individually for every ECC
bit in the selected 64b ECC block, during write
to DRAM. For all k between 0 and 7, when
bit(k) is set to 1, the value for the k ECC bit
(which corresponds with k data byte lane) is
inverted. Otherwise, the value for the k ECC bit
is not affected.
15
RW
0b
Core
ECC Diagnostic Enable
(C0sd_cr_eccdiagen):
1: The ECC bit invert vector is used to invert
selected ECC bits, during writes to DRAM.
0: The diagnostic feature is turned off.
14:0
RW
4110h
Core
Reserved