EtronTech
EM63A165
10 Burst Stop command
(RAS# = "H", CAS# = "H", WE# = "L")
The Burst Stop command is used to terminate either fixed-length or full-page bursts. This
command is only effective in a read/write burst without the auto precharge function. The terminated
read burst ends after a delay equal to the CAS# latency (refer to the following figure). The termination
of a write burst is shown in the following figure.
T0
T 1
T2
T3
T4
T5
T6
T7
T8
CLK
READ A
NOP
NOP
NOP
COMMAND
NOP
NOP
Burst Stop
DOUT A
NOP
NOP
The burst ends after a delayequal to the CAS# latency.
CAS# latency=2
DOUT A
DOUT A
DOUT A
DOUTA
3
0
1
2
t
, DQ's
CK2
CAS# latency=3
, DQ's
DOUT A
DOUT A
DOUTA
3
0
1
2
t
CK3
＞
Termination of a Burst Read Operation
(Burst Length
4, CAS# Latency = 2, 3)
T0
T 1
T2
T3
T4
T5
T6
T7
T8
CLK
NOP
NOP
NOP
COMMAND
NOP
WRITE A
NOP
Burst Stop
don't care
NOP
NOP
CAS# latency= 2, 3
DQ's
DIN A
DIN A
0
DIN A
1
2
Input data for the Write is masked.
Termination of a Burst Write Operation
(Burst Length = X, CAS# Latency = 1, 2, 3)
15
Rev 1.1 Apr. 2007
ETRON [ ETRON TECHNOLOGY, INC. ]
