Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Fiche De Données
Codes de produits
AT91SAM9N12-EK
430
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
Figure 31-14. Burst Read Access, Latency = 2, Low-power DDR1-SDRAM Devices
Figure 31-15. Burst Read Access, Latency = 3, DDR2-SDRAM Devices
Col a
NOP
READ
NOP
0
Latency = 2
SDCLK
A[12:0]
COMMAND
BA[1:0]
DQS[1:0]
Da
Db
Dc
Dd
De
Df
Dg
Dh
D[15:0]
3
DM[1:0]
Col a
NOP
READ
NOP
0
Latency = 3
SDCLK
A[12:0]
COMMAND
BA[1:0]
DQS[1:0]
Da
Db
Dc
Dd
De
Df
Dg
Dh
D[15:0]
3
DM[1:0]