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. 23, 1996
Filed:
Sep. 14, 1992
Taizou Tsujimoto, Fujiidera, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data processing apparatus includes a first (k.times.m)-bit data bus wherein k is a byte count and m is a bit length of one byte, a plurality of m-bit I/O peripheral devices at least one which is connected to two or more of m-bit data buses belonging to a first group consisting of first to k-th m-bit data buses obtained by dividing the first (k.times.m)-bit data bus into the first to k-th m-bit data buses; a second (k.times.m)-bit data bus, a (k.times.m)-bit I/O central processing unit connected to the second (k.times.m)-bit data bus which is divided into (k+1)-th m-bit data buses consisting of a second group of m-bit data buses; a data path switching circuit connected between the first and second (k.times.m)-bit data buses which forms a data transmission path between an arbitrary two of said plurality of m-bit I/O peripheral devices and the CPU, and a transmission control circuit for generating control signals responsive to a demand of data transmission from said CPU. The m-bit I/O peripheral devices, first and second data buses, data path switching circuit and transmission control circuit can be integrated on an extended board.