Техническая Спецификация для Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333

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P4X-UPE3210-316-6M1333
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DRAM Controller Registers (D0:F0)
126
Datasheet
5.2.38
EPDCYCTRKWRTACT—EPD CYCTRK WRT ACT
B/D/F/Type:
0/0/0/MCHBAR
Address Offset: A1C–A1Fh
Default Value:
00000000h
Access:
RO, RW 
Size:
32 bits
EPD CYCTRK WRT ACT Status registers.
5.2.39
EPDCYCTRKWRTWR—EPD CYCTRK WRT WR
B/D/F/Type:
0/0/0/MCHBAR
Address Offset: A20–A21h
Default Value:
0000h
Access:
RW, RO 
Size:
16 bits
EPD CYCTRK WRT WR Status registers.
Bit
Access
Default 
Value
Description
31:21
RO
000h
Reserved 
20:17
RW
0000b
ACT to ACT Delayed (C0sd_cr_act_act[): This configuration register 
indicates the minimum allowed spacing (in DRAM clocks) between two ACT 
commands to the same rank.
16:13
RW
0000b
PRE to ACT Delayed (C0sd_cr_pre_act): This field indicates the minimum 
allowed spacing (in DRAM clocks) between the PRE and ACT commands to the 
same rank-bank:12:9R/W0000bPRE-ALL to ACT Delayed 
(C0sd_cr_preall_act):This configuration register indicates the minimum allowed 
spacing (in DRAM clocks) between the PRE-ALL and ACT commands to the same 
rank.
12:9
RO
0h
Reserved 
8:0
RW
0000000
00b
REF to ACT Delayed (C0sd_cr_rfsh_act): This configuration register 
indicates the minimum allowed spacing (in DRAM clocks) between REF and ACT 
commands to the same rank.
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
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
RO
0h
Reserved 
3:0
RW
0h
Same Rank WRITE to READ Delay (C0sd_cr_rd_wr): This field indicates the 
minimum allowed spacing (in DRAM clocks) between the WRITE and READ 
commands to the same rank.