Abstract: A secure logic system includes a physically unclonable function, a physically unclonable function configuration register, and an encryption circuit. The physically unclonable function establishes an encryption string according to at least partial random physical characteristics of the physically unclonable function. The physically unclonable function configuration register is coupled to the physically unclonable function, and load the encryption string from the physically unclonable function. The encryption circuit is coupled to the physically unclonable function configuration register, and manipulates a system string with the encryption string to generate encrypted data.

Abstract: A voltage regulator controller is disclosed including: a reference voltage generator for generating a reference voltage; a comparison circuit, coupled with the reference voltage generator, for comparing the reference voltage with an output voltage of a voltage regulator; and a control circuit, coupled with the reference voltage generator and the comparison circuit, for controlling the reference voltage generator to stepwise lower the reference voltage when a power saving command is received by the voltage regulator controller.

Abstract: A voltage regulator controller is disclosed including: a reference voltage generator for generating a reference voltage; a comparison circuit, coupled with the reference voltage generator, for comparing the reference voltage with an output voltage of a voltage regulator; and a control circuit, coupled with the reference voltage generator and the comparison circuit, for controlling the reference voltage generator to stepwise lower the reference voltage when a power saving command is received by the voltage regulator controller.