DIRECTORY OF CONTROLLER

摘要

The state of block units of stored data and tag data is stored on a cache memory and is compared to address data transmitted through a bus within clock period having a certain delay time using the snoop controller directory so that operation speed is increased. The directory includes a state memory for storing state data of block units of stored data, an address generator for generating the state memory address signal, data and address signal for a tag memory according to address signals transmitted through bus, a tag memory for comparing address with data signal generated by the address generator and tag data to generate tag match signal, and a write enable signal generator for generating write enable signal to be transmitted to the state memory.