Microcontroller power reduction system and method
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United States of America Patent
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Jul 2, 2019
Grant Date -
Dec 28, 2017
app pub date -
Jun 23, 2016
filing date -
Jun 23, 2016
priority date (Note) -
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Abstract
A microcontroller that can be configured to selectively operate in a synchronous mode or an asynchronous mode, and a method of selectively switching the operating mode is described. The microcontroller can include a processor and a system controller. The processor can be configured to operate synchronously in a synchronous operating mode and asynchronously in an asynchronous operating mode. The processor can also be configured to generate a processor idle status signal indicative of the processor operating in a reduced power mode, and generate a programming signal. The system controller can be configured to generate an asynchronous mode signal based on the programming signal and the processor idle status signal, and provide the asynchronous mode signal to the processor to control the processor to selectively operate in the synchronous operating mode and in the asynchronous operating mode.
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