EM68932DVKA Datasheet, PDF (27/40 Pages) Etron Technology, Inc. – 4M x 32 Mobile DDR Synchronous DRAM (SDRAM)

EtronTech
Figure 19. Read to Write
CK
CK
Command
READ
BST
Address
DQS
BA, Col n
CL = 2
DQ
DM
NOP
DO n
EM68932DVKA
WRITE
BA, Col b
t_DQSS
NOP
NOP
Command
READ
Address
BA, Col n
DQS
BST
NOP
CL = 3
NOP
WRITE
BA, Col b
NOP
DQ
DO n
DM
Don’t Care
(1) DO n = Data Out from column n; DI b = Data In to column b
(2) Burst length = 4, 8 in the cases shown; if the burst length is 2, the BST command can be ommitted
(3) Shown with nominal tAC, tDQSCK and tDQSQ
Etron Confidential
27
Rev. 1.0
Mar. 2009