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:
Apr. 12, 2011
Filed:
Mar. 31, 2008
Shawn Searles, Austin, TX (US);
Tahsin Askar, Round Rock, TX (US);
Thomas H. Hamilton, Manor, TX (US);
Oswin Housty, Austin, TX (US);
Shawn Searles, Austin, TX (US);
Tahsin Askar, Round Rock, TX (US);
Thomas H. Hamilton, Manor, TX (US);
Oswin Housty, Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
Timing delays in a double data rate (DDR) dynamic random access memory (DRAM) controller () are trained. A left edge of passing receive enable delay values is determined (). A final value of a receive data strobe delay value and a final value of a transmit data delay value are trained (). A right edge of passing receive enable delay values is determined using a working value of the receive data strobe delay (); and a final receive enable delay value intermediate between the left edge of passing receive enable delay values and the right edge of passing receive enable delay values is set ().