MULTIPROCESSOR SYSTEM FOR PROCESSING A DATA READ OR WRITE REQUEST CORRESPONDING TO TRANSACTION PRIOR TO THE COMPLETION OF SNOOPING OPERATION, AND A CACHE MANAGEMENT METHOD THEREOF

摘要

PURPOSE: A multiprocessor system and a cache management method thereof are provided to maintain the cache consistency and reduce the write and/or read latency.;CONSTITUTION: A system bus (140) connects master devices (110-130) and at least one slave device (150). At least one of the master devices has cache memories (111,121). The system bus processes a data read or write request corresponding to transaction from the at least one of the master devices to the slave device prior to the completion of snooping operation for the master devices. The transaction is write transaction. The system bus records write data corresponding to the wire transaction in the slave device.;COPYRIGHT KIPO 2013