INSTRUCTION EXECUTION CIRCUIT

摘要

PURPOSE: A command executing circuit is provided to have a memory circuit which memorizes a program and a processor which executes the program, thereby reducing power consumption. CONSTITUTION: A processor(100) outputs addresses of commands to a memory circuit according to the order of executing the commands which configure a program. The processor obtains the commands memorized in the addresses from the memory circuit and executes the commands. An address decoder(400) outputs an enable signal for outputting the commands to either one of a first memory device or a second memory device when the addresses are outputted from the processor. The first memory device and the second memory device memorize the commands.