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MSP432 RTC Battery Backup

Alvin P. Schmitt
Intellectual 940 points

Since there is no coin vbat backup on MSP432 why is there a RTC? Do I need to put in an I2C RTC with coin battery backup if I want a RTC?

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    TI__Guru**** 204717 points
    There are plenty of reasons to have a RTC beyond clocking/wakeup for a battery backup, in the case of the MSP432 this includes wakeup from LPM3/3.5 and calendar/alarm functionality. A RTC peripheral is included on the MSP432P401R but a battery backup system is not, need for external components is dependent on your desired application.

    Regards,
    Ryan

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