The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 1994
Filed:
Jun. 17, 1991
Atsushi Mohri, Itami, JP;
Yuuichi Saito, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A microprocessor which has a plurality of cache memory units with plural ways, a plurality of data buses each having different bus width, and a write way control unit or an address control unit whichever capable of switching the number of ways or entries of these cache memory units in accordance with a bus mode determined by a specified data bus and accessing specific cache memory units, where by switching the number of ways or entries in accordance with the set bus mode the byte number of fetched instructions and data is brought into perfect accord with the data width (line size) of respective cache memory units during any bus mode. This in turn fully eliminates unused region of respective cache memory units to provide the improved efficiency of the use of the entire cache memory units.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile