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How to clear periodical interrupt with RTC of dm8168

Lusheng zhang
Intellectual 440 points

Hi all,

periodical interrupt (every minute or second) with RTC of dm8168?
 How can I clear the event timer bits of the RTC_STATUS_REG? The TRM tells that these bits are stated as readonly. 

I have tried everry minute(or second) rtc interrupt, but it will happend about 10 times when the minute(or second) event has happended. why?