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TERMINAL HAVING REAL TIME CLOCK (RTC) OPERATOR AND METHOD OF RTC OPERATION USING THE SAME
TERMINAL HAVING REAL TIME CLOCK (RTC) OPERATOR AND METHOD OF RTC OPERATION USING THE SAME
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机译:终端具有实时时钟(RTC)运算符以及使用该运算符的RTC操作方法
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摘要
A method of operating a Real Time Clock (RTC) in a terminal is provided. The method includes detecting a clock signal transmitted to an RTC block when the main power supply is switched off, and supplying a power to the RTC block for its operation by charging and discharging the power periodically supplied from the backup battery according to the detected clock signal. A DC/DC converter connected to a backup battery is periodically switched on and off, and a capacitor is charged and discharged using the power of the backup battery, thereby avoiding supplying power from a backup battery continuously to an RTC block. Therefore, power consumption is reduced and a duration of time for maintaining RTC data is extended.
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