Datasheet

Figure 10. OCD adjust mode
CK#
WL
CK
DQS_in
DQ_in
DQS#
t
DS
t
DH
CMD
OCD calibration mode exit
WR
OCD adjust mode
EMRS NOP NOP NOP NOP NOP
EMRS
NOP
DT0 DT1 DT3DT2
V
IH(ac)
V
IL(ac)
V
IH(dc)
V
IL(dc)
DM
NOTE 1: For proper operation of adjust mode, WL = RL - 1 = AL + CL - 1t
CK
and t
DS
/t
DH
should be met as shown in the figure.
NOTE 2: For input data pattern for adjustment, DT0-DT3 is a fixed order and is not affected by burst type
(i.e., sequential or interleave)
AS4C128M16D2A-25BCN
AS4C128M16D2A-25BIN
Confidential
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Rev.1.0 Dec 2015