17.5.11.10 Step 9

In the Software Register Programming Control Status register (UDDRC_SWSTAT), poll the SW_DONE_ACK bit until it changes to 1, acknowledging that programming is complete.

In case of re-initialization only:

Update UDDRC_PWRCTL.SELFREF_SW to exit Self-refresh mode.
- Wait until OPERATING MODE, in the Operating Mode Status register (UDDRC_STAT), changes to 0x1.

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