Application processor for adjusting clock signal using hardware power management unit and devices including the same
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Aug 31, 2015
filing date -
Sep 2, 2014
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Abstract
An application processor includes a central processing unit (CPU), intellectual properties (IPs), a hardware power management unit (PMU) configured to determine whether the application processor is in system idle based on a first idle signal output from the CPU and output control signals as a result of the determination, and a clock signal supply control circuit configured to change an output signal supplied to the CPU and the IPs from clock signals to an oscillation clock signal, based on the control signals. The oscillation clock signal has a frequency lower than that of the clock signals.
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