About KV31 VLLS3 mode RAM content

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About KV31 VLLS3 mode RAM content

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Contributor I

I am testing the KV31 about VLLS3 low power mode. The reference document says that RAM content retained and I/O states held in VLLS3. Now I enter and exit VLLS3 successfully, but how I can verify the RAM data retained?

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NXP TechSupport
NXP TechSupport

Hi Yu fuhua ,

    Thank you for your interest in NXP kinetis product, I would like to provide service for you.

   Yes, KV31 in the VLSS3 mode, the RAM content still be retained:

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About how to verify the RAM data retained or not.

Please check the VLLS3 recovery mode, it is the wakeup reset, so if your code after reset don't initialize the RAM data, and clear the RAM data to zero, then you will find all the original RAM data still be retained. The verify mode is determined by your code about the RAM operation after reset.

Wish it helps you!

If you still have questions about it, please kindly let me know.

Have a great day,
Kerry

 

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