at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 183
at91cap7e
Manufacturer Part Number
at91cap7e
Description
Customizable Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91CAP7E.pdf
(520 pages)
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Figure 22-7. Low-power Mode Behavior
22.6.5.3
8549A–CAP–10/08
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
176).
AT91CAP7E
Low Power Mode
183
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