Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 Fiche De Données
Codes de produits
P4X-UPE3210-316-6M1333
Datasheet
127
DRAM Controller Registers (D0:F0)
5.2.40
EPDCYCTRKWRTREF—EPD CYCTRK WRT REF
B/D/F/Type:
0/0/0/MCHBAR
Address Offset:
A22–A23h
Default Value:
0000h
Access:
RO, RW
Size:
16 bits
BIOS Optimal Default
0h
EPD CYCTRK WRT ACT Status registers.
5.2.41
EPDCYCTRKWRTRD—EPD CYCTRK WRT READ
B/D/F/Type:
0/0/0/MCHBAR
Address Offset:
A24–A26h
Default Value:
000000h
Access:
RW
Size:
24 bits
BIOS Optimal Default
000h
EPD CYCTRK WRT RD Status registers.
Bit
Access
Default
Value
Description
15:9
RO
0s
Reserved
8:0
RW
0000000
00b
Different Rank REF to REF Delayed (C0sd_cr_rfsh_rfsh): This
configuration register indicates the minimum allowed spacing (in DRAM clocks)
between two REF commands to different ranks.
configuration register indicates the minimum allowed spacing (in DRAM clocks)
between two REF commands to different ranks.
Bit
Access
Default
Value
Description
23:23
RO
0h
Reserved
22:20
RW
000b
EPDunit DQS Slave DLL Enable to Read Safe (EPDSDLL2RD): Configuration
setting for Read command safe from the point of enabling the slave DLLs.
setting for Read command safe from the point of enabling the slave DLLs.
19:18
RO
0h
Reserved
17:14
RW
0h
Min ACT To READ Delayed (C0sd_cr_act_rd): This field indicates the
minimum allowed spacing (in DRAM clocks) between the ACT and READ
commands to the same rank-bank
minimum allowed spacing (in DRAM clocks) between the ACT and READ
commands to the same rank-bank
13:9
RW
00000b
Same Rank READ to WRITE Delayed (C0sd_cr_wrsr_rd): This field
indicates the minimum allowed spacing (in DRAM clocks) between the READ and
WRITE commands.
indicates the minimum allowed spacing (in DRAM clocks) between the READ and
WRITE commands.
8:6
RO
0h
Reserved
5:3
RW
000b
Same Rank Read To Read Delayed (C0sd_cr_rdsr_rd): This field indicates
the minimum allowed spacing (in DRAM clocks) between two READ commands to
the same rank.
the minimum allowed spacing (in DRAM clocks) between two READ commands to
the same rank.
2:0
RO
0h
Reserved