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:
Feb. 27, 1996
Filed:
Dec. 09, 1994
Yukari Takata, Itami, JP;
Yukihiko Shimazu, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A data processing circuit being provided with a select and output circuit 5 selectively outputting an operation result of an arithmetic logic unit (ALU)4 to a D bus 8, a temporary latch 2 holding a data part of a register 11 into which the operation result is written, and a select and output circuit 3 selectively outputting the data held in the temporary latch 2 to the D bus 8, wherein the select and output circuit 5 for the ALU 4 outputs only bits corresponding to a designated writing size to the D bus 8, the select and output circuit 3 for the temporary latch 2 outputs other than bits corresponding to the designated writing size to the D bus 8, and the register 11 inputs and stores data from the D bus 8, thereby leading to be capable of reducing the area of the register file 1.