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:
May. 17, 2016
Filed:
Jul. 29, 2011
Caroline Ssu-min Chen, Milpitas, CA (US);
Jeffrey Schulz, Milpitas, CA (US);
Michael H. M. Chu, Fremont, CA (US);
Ravish Kapasi, Fremont, CA (US);
Caroline Ssu-Min Chen, Milpitas, CA (US);
Jeffrey Schulz, Milpitas, CA (US);
Michael H. M. Chu, Fremont, CA (US);
Ravish Kapasi, Fremont, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A method and system for operating a multi-port memory system are disclosed. A memory controller may service read requests by accessing requested data from an external memory and communicating it to the requesting memory ports for access by devices coupled to the memory ports. A shared memory of the memory controller may be used to temporarily store data if a buffer associated with a requesting device is full. To reduce the ability for a slower memory port to occupy the shared memory and cause faster memory ports to be underserviced, the memory controller may advantageously regulate or limit issuance of read requests by memory ports operating at slower clock frequencies. The memory ports may be regulated independently of one another based on at least one respective attribute of each memory port, at least one attribute of the external memory, etc.