Patent ID: 9413568
Filing Date: 2016-08-09
CPC Classification: H03M,H04L

Claim Text:
1. A method of calibrating an input/output interface having multiple single-ended receivers, the method comprising: applying amplifier offset calibration to each of the multiple single-ended receivers during a first phase, each single ended receiver including an amplifier, the amplifier offset calibration iteratively determines a value for calibrating an internal voltage offset of the amplifier of each of the multiple single-ended receivers to produce a determined value; employing the determined value for each amplifier to the amplifier corresponding to each of the multiple single-ended receivers during an active phase of the input/output interface; applying reference voltage calibration to one single-ended receiver of the multiple single-ended receivers to determine a calibration reference voltage value during a second phase; and employing the calibration reference voltage value determined for the one single-ended receiver in each of the multiple single-ended receivers during the active phase of the input/output interface.