at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 217

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

Figure 22-7. Low-power Mode Behavior
22.5.5.3
6221G–ATARM–31-Jan-08
SDRAMC_A[12:0]
SDCKE
D[31:0]
SDCS
SDCK
(input)
RAS
CAS
Deep Power-down Mode
This mode is selected by programming the LPCB field to 3 in the SDRAMC Low Power Register.
When this mode is activated, all internal voltage generators inside the SDRAM are stopped and
all data is lost.
When this mode is enabled, the application must not access to the SDRAM until a new initializa-
tion sequence is done (See
This is described in
Row n
T
RCD
= 3
col a
Figure
CAS = 2
22-8.
col b
“SDRAM Device Initialization” on page
Dna
col c
Dnb
col d
Dnc
col e
Dnd
col f
Dne
Dnf
209).
AT91SAM9260
Low Power Mode
217