Datasheet

235
SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
Figure 21-2. Single Write Access, Row Closed, Low-power DDR1-SDRAM Device
Figure 21-3. Single Write Access, Row Closed, DDR2-SDRAM Device
SDCLK
A[12:0]
COMMAND
BA[1:0]
0
Row a col a
NOP
PRCHG NOP ACT NOP WRITE NOP
0
DM[1:0]
0 3
Trp = 2 Trcd = 2
DQS[1:0]
D[15:0]
Db
Da
3
SDCLK
A[12:0]
COMMAND
BA[1:0]
0
Row a col a
NOP PRCHG NOP ACT NOP WRITE NOP
0
DM[1:0]
0 3
Trp = 2
Trcd = 2
DQS[1:0]
D[15:0]
Db
Da
3