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:
Feb. 20, 2018
Filed:
Jan. 19, 2014
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventors:
Go Sado, Tokyo, JP;
Masaki Fujigaya, Tokyo, JP;
Kohei Wakahara, Tokyo, JP;
Keiji Hasegawa, Tokyo, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
G06F 1/324 (2013.01); G06F 1/3243 (2013.01); Y02B 60/1217 (2013.01); Y02B 60/1239 (2013.01);
Abstract
A semiconductor device includes a CPU core, a frequency regulating circuit, and a frequency control circuit. The frequency regulating circuit includes a table. The frequency control circuit provides a clock to the CPU core. The CPU core outputs an operating state signal indicating an operating state of the CPU core. The frequency regulating circuit controls a frequency of the clock based on the table and the operating state signal. Thus it is possible to provide a semiconductor device that allows performance to follow a dynamically changing load.