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:
May. 12, 1987
Filed:
Jun. 26, 1986
Applicant:
Inventors:
Serge Robert, Jouy en Josas, FR;
Pierre Fevrier, Fontenay aux Roses, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
The data processing system according to the invention has a microprocessor and an external erasable and programmable memory. A logic connection system is arranged between control pins of the microprocessor and a controlled pin of the external memory. These control pins of the microprocessor are the program control pin, a port control pin, the controlled pin of the memory and the memory selection pin. This ligic connection system permits using only one memory both for reading and writing of instructions and/or data instead of the two memories generally used.