| 摘要 |
A temperature-based real time clock calibration system and method for performing the same. The system in one embodiment includes a real time clock calibrated against a reference frequency, a temperature sensor being operative to measure a instantaneous temperature T 1 , and control circuitry operative to receive and sense the temperature T 1 . Control logic, preferably implemented in the control circuitry in one embodiment, determines when to recalibrate the real time clock against the reference frequency based on the measured temperature T 1 . In one embodiment, the reference frequency is generated by a main system clock. The system may be used during sleep mode or another reduced power operating mode of an electronic device.
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