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:
Aug. 03, 2021
Filed:
Aug. 22, 2019
Apple Inc., Cupertino, CA (US);
Robert D. Kenney, Austin, TX (US);
Terence M. Potter, Austin, TX (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to arbitration among register file accesses. In some embodiments, an apparatus includes a register file configured to store operands for multiple client circuits and arbitration circuitry configured to select from among multiple received requests to access the register file. In some embodiments, the apparatus includes first interface circuitry configured to provide access requests from a first client circuit to the arbitration circuitry and supplemental interface circuitry configured to receive unsuccessful requests from the first client circuit and provide the received unsuccessful requests to the arbitration circuitry. The supplemental interface circuitry may provide additional catch-up bandwidth to clients that lose arbitration, which may result in fairness during bandwidth shortages.