Intel D425 AU80610006252AA User Manual
Product codes
AU80610006252AA
Processor Configuration Registers
76
Datasheet
1.6.12
C0CYCTRKREFR - Channel 0 CYCTRK REFR
B/D/F/Type: 0/0/0/MCHBAR
Address Offset:
25B-25Ch
Default Value:
0000h
Access:
RO; RW;
Size: 16
bits
Channel 0 CYCTRK Refresh Registers.
Bit Access Default
Value
RST/
PWR
Description
15:13 RO 000b Core
RESERVED () (RESERVED ()):
Reserved.
Reserved.
12:9 RW 0000b Core
Same Rank PALL to REF Delayed
(C0sd_cr_pchgall_rfsh):
This configuration register indicates the
minimum allowed spacing (in DRAM clocks)
between the PRE-ALL and REF commands to
the same rank.
(C0sd_cr_pchgall_rfsh):
This configuration register indicates the
minimum allowed spacing (in DRAM clocks)
between the PRE-ALL and REF commands to
the same rank.
8:0 RW
00000000
0b
Core
Same 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 same ranks.
(C0sd_cr_rfsh_rfsh):
This configuration register indicates the
minimum allowed spacing (in DRAM clocks)
between two REF commands to same ranks.
1.6.13
C0CKECTRL - Channel 0 CKE Control
B/D/F/Type: 0/0/0/MCHBAR
Address Offset:
260-263h
Default Value:
00000800h
Access:
RW; RW/L; RO;
Size: 32
bits
CKE controls for Channel 0
Bit Access Default
Value
RST/
PWR
Description
31:28 RO 0000b Core
Reserved ():
Reserved
Reserved
27 RW 0b Core
Start the self-refresh exit sequence
(sd0_cr_srcstart):
This configuration register indicates the request
to start the self-refresh exit sequence
(sd0_cr_srcstart):
This configuration register indicates the request
to start the self-refresh exit sequence
26:24 RW 000b Core
CKE pulse width requirement in high
phase (sd0_cr_cke_pw_hl_safe):
This configuration register indicates CKE pulse
width requirement in high phase. Corresponds
phase (sd0_cr_cke_pw_hl_safe):
This configuration register indicates CKE pulse
width requirement in high phase. Corresponds
to tCKE ( high ) at DDR Spec.