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. 11, 2000
Filed:
Dec. 24, 1996
Noriko Matsumoto, Kyoto, JP;
Seiji Tokunoh, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Layout data about a core part of a predesigned microcontroller such as a CPU block obtained by custom layout design, and logical data about a peripheral part of the microcontroller are read out from a library of components. These layout and logical data are reused for the layout design of a new microcontroller. The peripheral part logical data is modified according to circuit information about the new microcontroller. Layout data about a peripheral part of the new microcontroller is generated by an automatic placement/wire routing tool from the modified logical data. The core part layout data is simply reused as is for a core part of the new microcontroller. Layout data about the entire new microcontroller is generated by a block-to-block automatic placement/wire routing tool from layout data about individual circuit blocks.