11
1Gbit (32Mx32bit) Mobile SDR Memory
H55S1G(2/3)2MFP Series
WRITE to WRITE
Data for any WRITE burst may be concatenated with or truncated with a subsequent WRITE command. In either case,
a continuous flow of input data, can be maintained. The new WRITE command can be issued on any positive edge of
the clock following the previous WRITE command. The first data-in element from the new burst is applied after either
the last element of a completed burst or the last desired data element of a longer burst which is being truncated. The
new WRITE command should be issued X cycles after the first WRITE command, where X equals the number of
desired data-in element.
CLK
Command
WRITE
WRITE
BA, Col
b
BA, Col
n
Address
DQ
DIb1
DIn0
DIb0
DIn1
DIb2 DIb3
D
I
n2
DIn3
DM
CL = 2 or 3
Don't Care
Concatenated Write Bursts
CLK
Command
WRITE
WRITE
WRITE
WRITE
WRITE
NOP
BA, Col
b
BA, Col
x
BA, Col
n
BA, Col
a
BA, Col
g
Address
DQ
D
I
b'
DIn
DIb
DIn’
D
I
x
D
I
a
DIg
D
I
x’
DIa’
D
I
g’
DM
Don't Care
CL = 2 or 3
Random Write Cycles
Rev 1.2 / Jun. 2008
35
HYNIX [ HYNIX SEMICONDUCTOR ]
