Datasheet

241
SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
Figure 21-12. Single Read Access, Row Closed, Latency = 3, DDR2-SDRAM Device
Figure 21-13. Single Read Access, Row Closed, Latency = 2, SDR-SDRAM Device
Latency = 3
SDCLK
Row a Column a
A[12:0]
NOP PRCHG NOP ACT NOP READ
COMMAND
0
BA[1:0]
DQS[1]
DQS[0]
Da Db
D[15:0]
3
DM[1:0]
TRP TRCD
Row a col a
NOP PRCHG NOP ACT NOP READ BST NOP
0
Trp Trcd Latency = 2
SDCLK
A[12:0]
COMMAND
BA[1:0]
DaDb
D[31:0]
3
DM[3:0]