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Power Management in Embedded Systems - DAIICT Intranet

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Operat<strong>in</strong>g State<br />

● If a system supports multiple operat<strong>in</strong>g<br />

po<strong>in</strong>ts, some rules and mechanisms are<br />

required to move the system from one<br />

operat<strong>in</strong>g po<strong>in</strong>t to another.<br />

● Current dynamic control mechanisms may<br />

set operat<strong>in</strong>g po<strong>in</strong>ts <strong>in</strong> response to changes<br />

<strong>in</strong> activity or <strong>in</strong> response to the requests of<br />

key programs.<br />

● low latency of devices, scal<strong>in</strong>g and<br />

un<strong>in</strong>terrupted execution while chang<strong>in</strong>g<br />

states, allows very f<strong>in</strong>e-gra<strong>in</strong> policies. Each<br />

operat<strong>in</strong>g state may be associated with an<br />

operat<strong>in</strong>g po<strong>in</strong>t specific to the requirements<br />

of that state.

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