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. 07, 2019
Filed:
Nov. 09, 2017
Cadence Design Systems, Inc., San Jose, CA (US);
Bikram Banerjee, Bangalore, IN;
Anne Rodgers Hughes, Austin, TX (US);
John Michael MacLaren, Austin, TX (US);
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
Embodiments of the invention provide an apparatus and method for a coherent, efficient, and configurable cyclic check redundancy retry implementation for synchronous dynamic random access memory. The process includes storing write commands as groups of bursts in a storage location where those commands are stored at least until a time frame has passed for receiving a corresponding cyclic redundancy check failure message. In some embodiments, the process includes retrying corresponding groups of bursts after receiving a failure message where retried groups of bursts are given priority over other memory access commands. In some embodiments, when a read command is received corresponding to a write command that is not beyond the relevant time frame the read command will also be held back from execution until the corresponding time frame has passed without notification of cyclic redundancy check value failure.