512Mb: 32 Meg x 16, 16 Meg x 32 Mobile SDRAM
Operations
Fixed-length READ bursts may be truncated with a BURST TERMINATE command,
provided that auto precharge was not activated. The BURST TERMINATE command
should be issued
x
cycles before the clock edge at which the last desired data element is
valid, where
x
= CL - 1. This is shown in Figure 17 on page 29 for each possible CL; data
element
n
+ 3 is the last desired data element of a longer burst.
Figure 17:
Terminating a READ Burst
T0
CLK
T1
T2
T3
T4
T5
T6
COMMAND
READ
NOP
NOP
NOP
BURST
TERMINATE
X
= 1 cycle
NOP
NOP
ADDRESS
BANK,
COL
n
DQ
CL = 2
D
OUT
n
D
OUT
n
+1
D
OUT
n
+2
D
OUT
n
+3
T0
CLK
T1
T2
T3
T4
T5
T6
T7
COMMAND
READ
NOP
NOP
NOP
BURST
TERMINATE
NOP
NOP
NOP
X
= 2 cycles
ADDRESS
BANK,
COL
n
DQ
CL = 3
D
OUT
n
D
OUT
n
+1
D
OUT
n
+2
D
OUT
n
+3
DON’T CARE
Notes:
1. DQM is LOW.
PDF: 09005aef81ca5de4/Source: 09005aef81ca5e03
MT48H32M16LF_1.fm - Rev. H 6/07 EN
29
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©2005 Micron Technology, Inc. All rights reserved.
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