Fujitsu Corporation

Atsushi Fujihara

Takeshi Kitahara

A comparing unit compares an address of data written into a main memory by an external device with an address of data stored in a cache memory, and a masking unit masks specific bits obtained by a result in said address comparing unit. An invalidating unit invalidates data stored in the cache memory corresponding to the specific bits masked by the masking unit. Therefore, inconsistency between the main memory and the cache memory can be prevented, even when the data are transferred by using a block transfer process.

Growing community of inventors

Kawasaki, Japan

Atsushi Fujihara