Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Data Sheet
Product codes
AT32UC3A3-XPLD
230
32072H–AVR32–10/2012
AT32UC3A3
Figure 16-9. Low Power Mode Behavior
16.7.6.3
Deep power-down mode
This mode is selected by writing the value three to the LPR.LPCB field. When this mode is acti-
vated, all internal voltage generators inside the SDRAM are stopped and all data is lost.
vated, all internal voltage generators inside the SDRAM are stopped and all data is lost.
When this mode is enabled, the user must not access to the SDRAM until a new initialization
sequence is done (See
sequence is done (See
).
This is described in
Low Power Mode
CAS = 2
T
RCD
= 3
SDCS
SDCK
SDRAMC_A[12:0]
RAS
CAS
SDCKE
D[15:0]
(input)
Dna
Dnb
Dnc
Dnd
Dne
Dnf
Col f
Col e
Col d
Col c
Col b
Col a
Row n