not. These techniques are employed to control a power manager that drives the hardware
po
wer-saving mechanisms using software drivers and power handlers in the operating system.
7.3.1 Dynamic Frequency Scaling
System-on-chip (SoC) dynamic power consumption is proportional to operating frequency.
It makes sense to lower the clock frequency of a processor to the lowest value that still meets
the required processing performance. Although the software runs more slowly, it still meets
its real-time deadlines with acceptable margins. This is performed dynamically and requires
special ...
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