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Question

What is an clock data validation?

Answer

Real Time ClockFunction

These RTCs provide a power-on reset function, an oscillation halt sensing function and a supply voltage monitoring function.
These functions can be applied to judge a clock data validity.

  • Power-on Reset Function
    Power-on reset circuit is configured to reset a control register and store the status as a flag after initial power on from 0 V without backup battery.
  • Oscillation Halt Sensing Function
    Oscillation halt sensing circuit is equipped with internal registers configured to record any past oscillation halt as a flag.
  • Supply Voltage Monitoring Function
    Supply voltage monitoring circuit is configured to record a drop in supply voltage below supply voltage monitoring thresholds.
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