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. 09, 1986
Filed:
Apr. 07, 1986
Joseph P Buonomo, Endicott, NY (US);
Raymond E Losinger, Endicott, NY (US);
Burton L Oliver, Nanticoke, NY (US);
Daniel J Sucher, Vestal, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Synchronization of peripheral operation with that of a processor in a multi-microprocessor implemented data processing system is achieved by bus cycle alteration. A logic circuit is provided for monitoring the condition of a peripheral's status bits and for preventing an appropriate processor control signal from completing the present bus cycle if the peripheral of interest is not able to accept an access. The peripheral of interest is readily identified by providing unique memory mapped locations, one for each system peripheral, that are responsively connected to the logic circuit.