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:
Aug. 05, 2008
Filed:
Apr. 25, 2005
Teruhiko Kamigata, Kawasaki, JP;
Shinichiro Tago, Kawasaki, JP;
Atsushi Ike, Kawasaki, JP;
Yoshimasa Takebe, Kawasaki, JP;
Teruhiko Kamigata, Kawasaki, JP;
Shinichiro Tago, Kawasaki, JP;
Atsushi Ike, Kawasaki, JP;
Yoshimasa Takebe, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A multiprocessor system includes a plurality of processors, a shared bus coupled to the plurality of processors, a resource coupled to the shared bus and shared by the plurality of processors, and an exclusive control unit coupled to the plurality of processors and configured to include a lock flag indicative of a locked/unlocked state regarding exclusive use of the resource, wherein the processors include a special purpose register interface coupled to the exclusive control unit, and are configured to access the lock flag by special purpose register access through the special purpose register interface.