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:
Jul. 15, 1997
Filed:
Sep. 04, 1996
Osamu Matsushima, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a microcomputer with built-in SOG region system debugging is made possible using a gate array provided outside the microcomputer by supplying signals transferred between a CPU and the gate array to external terminals used for transferring signals between the interior of the microcomputer and a peripheral device outside the microcomputer. In order to supply necessary signals to the gate array connected to the external terminals, a selection circuit which outputs signals between CPU and the SOG region to the external terminals by means of a mode switching signal is provided. By the provision of the selection circuit, it becomes possible to output the signals between the CPU and the SOG region to the external terminals by switching, and to transmit the signals of CPU to the gate array provided outside the microcomputer. Accordingly, it becomes possible to debug the system using the gate array provided outside the microcomputer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile