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.

Date of Patent:
Jul. 25, 2017

Filed:

Nov. 14, 2013
Applicant:

Rambus Inc., Sunnyvale, CA (US);

Inventors:

Pravin Kumar Venkatesan, Bangalore, IN;

Liji Gopalakrishnan, Sunnyvale, CA (US);

Kashinath Prabhu, Bangalore, IN;

Makarand Shirasgaonkar, Pune, IN;

Assignee:

Rambus Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/16 (2006.01);
U.S. Cl.
CPC ...
G06F 13/1668 (2013.01); Y02B 60/1228 (2013.01);
Abstract

A single-ended receiver is coupled to an input-output (I/O) pin of a command and address (CA) bus. The receiver is configurable with dual-mode I/O support to operate the CA bus in a low-swing mode and a high-swing mode. The receiver is configurable to receive a first command on the I/O pin while in the high-swing mode, initiate calibration of the slave device to operate in the low-swing mode in response to the first command, switch the slave device to operate in the low-swing mode while the CA bus remains active, and to receive a second command on the I/O pin while in the low-swing mode.


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