EtronTech
EM6AA160
Figure 10. Random Read Accesses Required CAS Latencies (CL=2)
CK
CK
COMMAND
ADDRESS
READ
READ
READ
READ
NOP
NOP
Bank,
Col o
Bank,
Col p
Bank,
Col q
Bank,
Col n
CL=2
DQS
DQ
DO
q
DO
n'
DO
o
DO
o'
DO
n
DO
p
DO
p'
DO n, etc. =Data Out from column n, etc.
n', etc. =the next Data Out following DO n, etc. according to the programmed burst order
Burst Length=2,4 or 8 in cases shown. If burst of 4 or 8, the burst is interrupted
Reads are to active rows in any banks
Don’t Care
Random Read Accesses Required CAS Latencies (CL=2.5)
CK
CK
COMMAND
ADDRESS
READ
READ
READ
READ
NOP
NOP
Bank,
Col o
Bank,
Col p
Bank,
Col q
Bank,
Col n
CL=2.5
DQS
DQ
DO
n'
DO
o
DO
o'
DO
n
DO
p
DO
p'
DO n, etc. =Data Out from column n, etc.
n', etc. =the next Data Out following DO n, etc. according to the programmed burst order
Burst Length=2,4 or 8 in cases shown. If burst of 4 or 8, the burst is interrupted
Reads are to active rows in any banks
Don’t Care
Etron Confidential
25
Rev. 1.3
Mar. /2014
ETRON [ ETRON TECHNOLOGY, INC. ]
