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problem aboutMCF52211's RTC module

Question asked by Li Zhengping on Feb 16, 2009
Latest reply on Feb 16, 2009 by Mark Butcher
I want to use mcf52211 to develop one product. I want to use its RTC module,but I hope it can keep running even when VDD,VDDPLL is power down, the mcf52211 has VSTBY pin,so I think use a battery backup power to VSTBY pin. my question is whether the method works?