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. 06, 1999
Filed:
Nov. 27, 1996
Makoto Mitsuda, Osaka-fu, JP;
Akihiko Nakamura, Osaka-fu, JP;
Katsuyuki Tamai, Osaka-fu, JP;
Masao Okabe, Osaka-fu, JP;
Tsutomu Miyoshi, Osaka-fu, JP;
Masafumi Sato, Osaka-fu, JP;
Junji Soga, Kyoto-fu, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
An external expansion bus interface circuit is provided for connecting a peripheral to a micro control unit to exchange digital information under an external expansion memory mode of the micro control unit. For this purpose, the eternal expansion bus interface circuit includes a means for storing a writing data. Address decoder and a strobe decoder are connected to the micro control unit to directly receive the writing data, an address strobe, and a write strobe. Then the address decoder and strobe decoder produce a write enable signal for enabling the memory to store the data at address designated thereby.