SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND OPERATING METHOD THEREOF

摘要

A semiconductor integrated circuit device and an operating method thereof are provided to increase the reusability of a peripheral circuit by integrating a control signal to control peripheral circuits comprised in the semiconductor integrated circuit. A first interface block interfaces with a first bus(120). A second interface block interfaces with a second bus(130). A clock detection block decodes a register value corresponding to a divided clock signal, and generates a state control signal on the basis of the decoded register value. A state machine receives first control signals received through the first interface block, and generates second control signals having a clock frequency corresponding to the register value on the basis of the state control signal.