NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
DLL Switch Sequence from DLL-off to DLL-on
T0
Ta0
Ta1
Tb0
Tc0
Tc1
Td0
Te0
Tf1
Th0
Tg0
CK
CK
CMD
CKE
1)
NOP
SRE 2)
NOP
SRX 5)
MRS 6)
MRS 7)
MRS 8)
tDLLK
Valid
Valid
ODTLoff
+ 1tck
tCKSRE
3)
tCKSRX 4)
tXS
tMRD
tMRD
tCKESR
ODT
Do not
Care
Time
break
Note:
ODT: Static LOW in case RTT_Nom and RTT_WR is enabled, otherwise static Low or High
1) Starting from Idle State.
2) Enter SR.
3) Change Frequency.
4) Clock must be stable at least tCKSRX.
5) Exit SR.
6) Set DLL-on by MR1 A0="0"
7) Start DLL Reset
8) Any valid command
Version 1.4
05/2019
36
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