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:
Apr. 29, 1980
Filed:
Jul. 31, 1978
Wayne D Harrington, Austin, TX (US);
Fuad H Musa, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A digital data processor having the capability of handling more than one interrupt wherein one of the interrupts is a fast interrupt is provided. Interrupts are received by a priority network which establishes the priority of the interrupts should more than one interrupt occur at the same time. The output of the priority network is stored in a latch and the output of the latch is coupled to a vector and code logic circuit which encodes the vector address for the interrupt received. Whenever a fast interrupt is received a flag is set in a storage means so that when the system returns from interrupt it will be able to determine whether a fast interrupt had been serviced or not.