IS43R16320B
IC43R16320B
A Write command to the consecutive Write command Interval
Destination row of the consecutive write
command
Bank
address
Row address State
Operation
The consecutive write can be performed after an interval of no less than 1 cycle to
interrupt the preceding write operation.
1. Same
Same
Different
Any
ACTIVE
Precharge the bank to interrupt the preceding write operation. tRP after the
precharge command, issue the ACT command. tRCD after the ACT command, the
consecutive write command can be issued. See ‘A write command to the
consecutive precharge interval’ section.
2. Same
—
The consecutive write can be performed after an interval of no less than 1 cycle to
interrupt the preceding write operation.
3. Different
ACTIVE
IDLE
Precharge the bank without interrupting the preceding write operation. tRP after
the precharge command, issue the ACT command. tRCD after the ACT command,
the consecutive write command can be issued.
t0
tn
tn+1
tn+2
tn+3
tn+4
tn+5
tn+6
CK
/CK
Command
NOP
ACT
Row
NOP
WRIT
WRIT
Column A Column B
Address
BA
DQ
inA0 inA1 inB0 inB1 inB2 inB3
Column = A
Write
Column = B
Write
DQS
Bank0
Active
BL = 4
Bank0
WRITE to WRITE Command Interval (same ROW address in the same bank)
Integrated Silicon Solution, Inc. — www.issi.com
31
Rev. 00B
06/11/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
