AT32UC3A0512 Datasheet, PDF (48/52 Pages) ATMEL Corporation – AVR32 32-Bit Microcontroller

SDCKE rise at the same time as SDCK while exiting self-refresh mode.
Fix/Workaround
None.
22. PCx pins go low in stop mode
In sleep mode stop all PCx pins will be controlled by GPIO module instead of oscillators.
This can cause drive contention on the XINx in worst case.
Fix/Workaround
Before entering stop mode set all PCx pins to input and GPIO controlled.
23. Need two NOPs instruction after instructions masking interrupts
The instructions following in the pipeline the instruction masking the interrupt through SR
may behave abnormally.
Fix/Workaround
Place two NOPs instructions after each SSRF or MTSR instruction setting IxM or GM in SR.
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32058AS–AVR32–03/07