Atmel AVR XMEGA AU series

494
8331B–AVR–03/12
Atmel AVR XMEGA AU
36.16 SRAM refresh
Figure 36-52. Autorefresh when idle
Auto Refresh
Autorefresh when idle
* The number of NOPs is equal to RPDLY[1:0] (RPDLY = 1 is shown)
** The number of NOPs is equal to ESRDLY[2:0] (ESRDLY = 1 is shown)
CLK
CKE
CAS
RAS
DQM
BA[1:0]
A[11:0]
D
Clk
PER2
WE
CS