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:
Jul. 05, 2016
Filed:
Jun. 12, 2015
Apple Inc., Cupertino, CA (US);
Neeraj Parik, San Jose, CA (US);
Thejasvi Magudilu Vijayaraj, San Jose, CA (US);
Kai Lun Hsiung, Fremont, CA (US);
Yanzhe Liu, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A method and apparatus for aligning calibration segments for increased availability of a memory subsystem is disclosed. In one embodiment, a memory subsystem includes a memory and a memory controller coupled thereto via a number of independently operable channels (interfaces). The memory controller may convey on each of the channels at least one corresponding data strobe signal. The data strobe signal in each channel may be periodically calibrated. The memory controller may be configured to align the periodic calibrations in time so that they are performed concurrently instead of in a staggered manner. During the time the calibrations are performed on each channel, the memory may be unavailable for normal accesses.