W948D6FBHX5E-TR Datasheet, PDF (36/60 Pages) Winbond – 256Mb Mobile LPDDR

W948D6FB / W948D2FB
7.6.5 Concatenated Write Bursts
An example of concatenated write bursts is shown in figure below.
CK
CK
Command
WRITE
NOP
WRITE
NOP
Address
BA,Col b
tDQSSmin
BA,Col n
DQS
DQ
DI b
DI n
DM
DQS
tDQSSmax
DQ
DI b
DI n
DM
256Mb Mobile LPDDR
NOP
NOP
1) DI b (n)= Data in to column b (column n)
2)3 subsequent elements of Data In are applied in the programmed order following DI b.
3 subsequent elements of Data In are applied in the programmed order following DI n.
3) Non-interrupted bursts of 4 are shown.
4) Each WRITE command may be to any active bank
= Don't Care
7.6.6 Non-Consecutive Write Bursts
An example of non-consecutive write bursts is shown in figure below.
CK
CK
Command WRITE
NOP
NOP
WRITE
NOP
NOP
Address BA,Col b
BA,Col n
BA,Col n
tDQSSmax
DQS
DQ
DM
1) Dl b (n)= Data in to column b (or column n)
= Don't Care
2) 3 subsequent elements of Data In are applied in the programmed order following DI b.
3 subsequent elements of Data In are applied in the programmed order following DI n.
3) Non-interrupted bursts of 4 are shown.
4) Each WRITE command may be to any active bank and may be to the same or different devices.
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Publication Release Date : Oct, 15, 2012
Revision : A01-004