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:
Jan. 28, 2020
Filed:
Aug. 17, 2018
Apple Inc., Cupertino, CA (US);
Gregory S. Mathews, Saratoga, CA (US);
Kai Lun Hsiung, Fremont, CA (US);
Lakshmi Narasimha Murthy Nukala, Pleasanton, CA (US);
Peter Fu, Saratoga, CA (US);
Rakesh L. Notani, Santa Clara, CA (US);
Sukalpa Biswas, Fremont, CA (US);
Thejasvi Magudilu Vijayaraj, San Jose, CA (US);
Yanzhe Liu, Sunnyvale, CA (US);
Shane J. Keil, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques relating to arbitration in a memory controller are disclosed. In some embodiments, the memory controller implements a per-bank priority-based arbitration scheme for different types of memory traffic (e.g., with different quality of service parameters). In some embodiments, the memory controller is configured to provide per-bank overrides to the arbitration scheme based on latency tolerance reported by one or more requesters sending a particular type of memory traffic. Various techniques disclosed herein may improve performance, improve fairness among different types of memory traffic, and/or reduce power consumption.