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. 10, 2004
Filed:
May. 25, 2000
Kenji Shigeki, Nara, JP;
Roran Co., Osaka, JP;
Abstract
In an integrated circuit, an FPGA ( ) has functions of a CPU core ( ), and includes a user's circuit and so forth. This configuration allows the number of implemented components such as peripheral circuit chips to be decreased, and cost to be reduced. The integrated circuit is configured such that the CPU core ( ), peripheral circuits thereof, and a system bus ( ) are stored as logic data in a PROM ( ), and the FPGA ( ) performs functions as the CPU core ( ), peripheral circuits ( ) ( ), and system bus ( based on the logic data. Therefore, the CPU core ( ), peripheral circuits ( ) ( ), and system bus ( ) which have desired functions can be obtained according to contents of the logic data stored in the PROM ( ). Further, a user can readily extend and change functions of the CPU core ( ) by retrofitting a separate circuit to the system bus ( ).