The micro-processor has the ability to control its own power sources(note plural) through the "control circuitry". There's a charge pump circuit that is utilized (amoung other power source controlled issues), switched on and off by the control circuitry, that brings the battery power 3v up to 5v operation for the Micro processor. That power supply (source)will not happen unless the control circuitry allows it to.

rephrase...

The micro-processor has the ability to control its own power sources(note plural) as the "control circuitry". There's a charge pump circuit that is utilized (amoung other power source controlled issues), switched on and off by the control circuitry, that brings the battery power 3v up to 5v operation for the Micro processor. That power supply (source)will not happen unless the control circuitry allows it to.

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