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. 23, 1982
Filed:
May. 09, 1979
Applicant:
Inventors:
Hideo Maejima, Hitachi, JP;
Kunihiko Ohnuma, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
An LSI microprocessor comprising an instruction fetch portion and an instruction execute portion which fetches an instruction and executes an instruction independently of each other under a microprogram control, a pipeline control being made while synchronizing the portions, the instruction fetch portion containing therein an error processing circuit, which receives an external memory error signal concerning a main memory and an internal protect error signal and which delivers a reset signal for clearing a microprogram counter and starting an error processing microprogram.