EM68B16DVAA
EtronTech
Figure 19. Read to Write
CK
CK
READ
BST
NOP
WRITE
NOP
NOP
Command
Address
BA, Col n
BA, Col b
CL = 2
tDQSS
DQS
DQ
DO n
DM
READ
BST
NOP
NOP
WRITE
NOP
Command
Address
BA, Col n
BA, Col b
CL = 3
DQS
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 or 16 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