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. 10, 2013
Filed:
Dec. 20, 2010
Hanwoo Cho, Acton, MA (US);
Tahsin Askar, Round Rock, TX (US);
Philip E. Madrid, Austin, TX (US);
Guhan Krishnan, Chelmsford, MA (US);
Brian W. Amick, Bedford, MA (US);
Shawn Searles, Austin, TX (US);
Ryan J. Hensley, Austin, TX (US);
Hanwoo Cho, Acton, MA (US);
Tahsin Askar, Round Rock, TX (US);
Philip E. Madrid, Austin, TX (US);
Guhan Krishnan, Chelmsford, MA (US);
Brian W. Amick, Bedford, MA (US);
Shawn Searles, Austin, TX (US);
Ryan J. Hensley, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A memory loopback system and method including an address/command transmit source configured to transmit a command and associated address through an address/command path. A transmit data source is configured to transmit write data associated with the command through a write path. Test control logic is configured to generate gaps between successive commands. A loopback connection is configured to route the write data from the write path to a read path. A data comparator is configured to compare the data received via the read path to a receive data source and generate a data loopback status output. Pattern generation logic can be configured to generate a loopback strobe, the loopback strobe being coupled to the read path. The pattern generation logic may be configured to synthesize a read strobe based on the test control logic and to use the synthesized read strobe as the loopback strobe. The loopback connection may be configured to route the address/command data from the address/command path to an address/command comparator, the address/command comparator being configured to compare the address/command data to an address/command receive source and generate an address/command loopback status output.