Datasheet

237
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
Figure 22-12. Single Read Access, Row Close, Latency = 3, DDR2-SDRAM Device
Figure 22-13. Single Read Access, Row Close, Latency = 2, SDR-SDRAM Device
Trp Trcd
Latency = 2
SDCLK
Row a Col 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]
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]