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:
Oct. 19, 1999
Filed:
Sep. 12, 1997
Karl-Heinz Mattheis, San Jose, CA (US);
Infineon Technologies Corporation, San Jose, CA (US);
Abstract
The present invention is related to a data handling system comprising a central processing unit for executing a sequence of commands stored in a memory. This central processing unit comprises an interrupt request input and a priority input as well as means for servicing an interrupt request by executing a command sequence at a predefined address in said memory. The predefined address is an interrupt base address plus an offset address value defined by a priority number provided at the priority input. The system further comprises an interrupt request control unit comprising interrupt arbitration means and generating, after determining the interrupt request, the highest priority by said interrupt arbitration means, an interrupt request signal fed to said interrupt request input and providing a priority number at said priority input. A plurality of peripheral devices each having an associated interrupt service register for storing a priority number is coupled with the interrupt request control unit via an interrupt arbitration bus.