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. 04, 1995
Filed:
Feb. 14, 1992
Douglas D Gephardt, Austin, TX (US);
Andrew McBride, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
An apparatus for managing system interrupt operations in a computing system including a processing unit and peripheral devices. The apparatus comprises a transmission circuit for transmitting signals which effects operative connection among the peripheral devices and the processing unit; an interrupt drive circuit for generating interrupt signals associated with each peripheral device drives the transmission circuit from a first signal level to a second signal level to effect generating an interrupt signal; and an acknowledge drive circuit for generating an acknowledge signal by the processing unit. Each acknowledge drive circuit drives the transmission circuit from an initial signal level to an indicating signal level to effect generation of an acknowledge signal, and drives the transmission circuit from the indicating signal level to the initial signal level upon termination of the acknowledge signal. In its preferred embodiment, the apparatus provides that no peripheral device can generate an interrupt signal for a predetermined time interval following termination of an acknowledge signal.