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:
Nov. 18, 2003
Filed:
Feb. 16, 2000
Applicant:
Inventors:
Hiroshi Ueki, Hyogo, JP;
Teruaki Kanzaki, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract
A microcomputer system having a central processor, a plurality of memory types and a bus interface circuit is configured to allow an external device to download and upload data to/from the various memories using a download circuit connected to the plurality of memories via the bus interface circuit. In operation, a first reset signal, a second reset signal and a mode set signal operate to control whether the central processor or the download circuit will be active, and whether a selector will couple the central processing unit or the download circuit to the bus interface circuit.