Interface with Variable Data Rate

摘要

A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate.

主权项

1. A device, comprising:
a node to couple to a wired link; a transmitter having an output coupled to the node and having a plurality of modes of operation including a calibration mode in which an increased data rate of communication of information over the wired link, relative to an initial data rate, is determined in accordance with a metric corresponding to communication of the information over the wired link, wherein the increased data rate is a non-integer multiple of the initial data rate; and control logic coupled to the transmitter to adjust, in the calibration mode, a data rate of communication of information over the wired link relative to the initial data rate, subject to a power constraint, so as to determine the increased data rate of communication of information over the wired link.