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Kinetis K60 and RTC operation while powered down

Question asked by KELLY CARTER on May 5, 2013
Latest reply on May 17, 2013 by KELLY CARTER

Is there a way to keep the RTC operating while the processor is powered down.  The oscillator (EXTAL32) continues to run but the RTC_TSR register is not updated.  When the board is powered up, it still has the time value that it had when it was powered down.  I am trying to get it to function as a battery backed RTC should and continue to keep the time updating while the other parts of the CPU are powered down or in reset.