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:
Jan. 21, 1992
Filed:
Nov. 03, 1983
Brian F Wilkie, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An interrupt priority circuit is used with a data processor which is responsive to interrupt signals from each of a plurality of resources of predetermined priority. A priority encoder receives all of the interrupt signals, and provides an interrupt vector corresponding to the interrupt signal received from the resource having the highest predetermined priority. However, the interrupt priority of a selected resource may be dynamically altered to the highest priority by storing a corresponding priority vector into a priority register. A first multiplexor controlled by the priority vector provides an enable signal whenever an interrupt signal is received from the selected resource. A second multiplexor controlled by the enable signal provides the priority vector if the enable signal is present or the interrupt vector otherwise. A gate controlled by the data processor may be provided to selectively couple the vector provided by the second multiplexor onto the address bus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile