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. 21, 1998
Filed:
Feb. 15, 1996
Seiji Suetake, Kawasaki, JP;
Hideyuki Iino, Kawasaki, JP;
Koichi Hatta, Kawasaki, JP;
Tatsuya Nagasawa, Kawasaki, JP;
Koichi Kuroiwa, Kawasaki, JP;
Hiroyuki Fujiyama, Kawasaki, JP;
Kenji Shirasawa, Kawasaki, JP;
Noriko Kadomaru, Kawasaki, JP;
Shinichi Utsunomiya, Kawasaki, JP;
Makoto Miyagawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A slave processor for executing for example a vector operation is connected to a master processor. A vector length for a vector operation set to the slave processor can be changed without intervention of the master processor. When the master processor activates the slave processor, the slave processor outputs a busy signal immediately (at most one cycle later). The master processor reads the value of a busy register representing a busy/ready status of the slave processor in a slave access cycle at highest speed (in two cycles at most). Regardless of whether the master processor and the slave processor was designed as series products or general purpose products, they can be effectively connected.