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:
Dec. 11, 2007
Filed:
Mar. 24, 2005
Hideki Matsuyama, Kanagawa, JP;
Hideki Matsuyama, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Abstract
Interrupt controlling circuit by which only a desired one(s) of plural interrupts may readily be masked. An interrupt factor controlling moduleis provided for each interrupt. An interrupt group setting registerholds a group number of an interrupt signal INT entered to the interrupt factor controlling module. An interrupt group mask registerholds, for each group, information as to whether or not an interrupt belonging to a group in question is to be masked. In case an interrupt has occurred and the group of the group number of the interrupt, as held by the interrupt group setting register, is specified by the interrupt group mask registeras being to be masked, the interrupt mask circuitmasks the interrupt.