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:
Aug. 03, 1999
Filed:
Sep. 27, 1996
Abstract
A programmable controller includes a pipeline stage having a first stage IF for executing instruction fetching operations, a second stage ID/RF for decoding the instruction and for fetching data from a general-purpose register, a third stage EX for executing arithmetic and logic operations, data address calculations, or calculation of the effective address of a target branch, a fourth stage MEM for accessing to data memory, and a fifth stage WB/BPU for executing bit operations, writing operations with respect to the general-purpose register, or branching operations, are executed in a pipelined manner. Simplification of hardware and control, and facilitation of formation of a pipeline into multiple stages are realized as a result of a pipeline structure being formed into a unified instruction structure.