DIFFERENTIAL SIGNAL REVERSION AND CORRECTION CIRCUIT AND METHOD THEREOF

摘要

A differential signal reversion and correction circuit and a method thereof are provided. The structures of the circuit include: a data frame sending module, when the link conditions are detected, the data frame sending module generates specific logic sequence and finishes the sending by a input/output port, such that a receiving side receives, processes and analyzes the sequence, and determination of link transmission conditions are achieved; a comparator of the receiving side, which receives sequence data, performs corresponding comparing, checking and feedback controlling, thereby achieving link detection and differential correction purpose; a reversion control signal generating module, which receives a comparison result of the comparator, generates corresponding control signal, and controls the link whether to perform reversion operation.

主权项

1. A differential signal reversion and correction circuit, comprising the following modules disposed between two interconnected nodes:
a data frame sending module, including a first input port, a second input and output port and a third input and output port, the input port is connected to a P line and a N line through a first buffer, the second input and output port and the third input and output port are connected to each other in parallel and then are connected to the P line and the N line respectively; and a reversion control signal generating module, including a second buffer connected to the P line and the N line, a comparator connected in series to the second buffer, and a control link, the control link including an uplink and a downlink, the uplink is a first control switch, where the input side of the first control switch is disposed at a configuring module which is positioned between the buffer and the comparator, the first control switch is connected in series to the configuring module, and the output side of the first control switch is connected to the P line and the N line respectively, the downlink is a second control switch, where the input side of the second control switch is disposed between the buffer and the comparator, and the output side of the second control switch is connected to the P line and the N line respectively.