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:
May. 18, 2004
Filed:
Sep. 05, 2000
Applicant:
Inventor:
Katsumi Iwata, Kokubunzi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/22 ;
U.S. Cl.
CPC ...
G06F 9/22 ;
Abstract
To obtain a correct vector address even if an interrupt occurs during erasing or programming of the data in a built-in ROM by moving a part of a built-in RAM to a vector address area by a bus controller . Thereby, a microcomputer is prevented from running away and the safety of a system is improved at the time of on-board programming of the built-in ROM