SYSTEM-ON CHIP FOR SELECTIVELY PERFORMING HETEROGENEOUS POWER CONTROL AND HOMEGENEOUS POWER CONTROL, AND METHOD THEREOF

摘要

PURPOSE: An SoC(System-On-Chip) selectively performing the power control of different kinds and the power control of the same kind and an operating method thereof are provided to efficiently manage power consumed in the SoC by selectively performing the power control of the different kinds and the power control of the same kind. CONSTITUTION: Different kind power management units are independently operated to independently control the operation of power areas. A logic circuit(101) logically combines transition condition signals outputted from the different kind power management units to output a first feedback signal. The different kind power management units are synchronized with each other through a power control method of the same kind in response to the first feedback signal in order to be operated. When the different kind power management units include a state machine including a set of the same states and synchronized through the power control method of the same kind, the different kind power management units are synchronized through a lockstep method to be operated.