Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 Data Sheet

Product codes
P4X-UPE3210-316-6M1333
Page of 326
Datasheet
107
DRAM Controller Registers (D0:F0)
5.2.10
C0CYCTRKWR—Channel 0 CYCTRK WR
B/D/F/Type:
0/0/0/MCHBAR
Address Offset: 256–257h
Default Value:
0000h
Access:
RW 
Size:
16 bits
Channel 0 CYCTRK WR registers. 
Bit
Access
Default 
Value
Description
15:12
RW
0h
ACT To Write Delay (C0sd_cr_act_wr): This field indicates the minimum 
allowed spacing (in DRAM clocks) between the ACT and WRITE commands to the 
same rank-bank. This field corresponds to t
RCD_wr
 in the DDR Specificaiton.
11:8
RW
0h
Same Rank Write To Write Delayed (C0sd_cr_wrsr_wr): This field 
indicates the minimum allowed spacing (in DRAM clocks) between two WRITE 
commands to the same rank.
7:4
RW
0h
Different Rank Write to Write Delay (C0sd_cr_wrdr_wr): This field 
register indicates the minimum allowed spacing (in DRAM clocks) between two 
WRITE commands to different ranks. This field corresponds to t
WR_WR
 in the 
DDR Specification.
3:0
RW
0h
READ To WRTE Delay (C0sd_cr_rd_wr): This field indicates the minimum 
allowed spacing (in DRAM clocks) between the READ and WRITE commands. 
This field corresponds to t
RD_WR