Time sequence error correction system and method

Abstract

A timing error correction method used at the transmitting end in high-speed serial data transmission system comprises inputting a predefined parallel data training sequence and a clock signal, converting the training sequence into serial data, counting the number of the rising or falling edges of the serial data within a certain period, sending an adjustment signal for adjusting the time delay of the clock signal, obtaining a reasonable serialization timing, so that the number of the rising edges or falling edges of the serial data being equal to a predefined correct number. The corresponding timing error correction system comprises a data path, an adjustable delay clock path, a serialization unit for converting the parallel data into serial data, a driver unit, and a counting judging unit for counting the number of the rising or falling edges of the serial data and sending an adjustment signal to the adjustable delay clock path so as to control the timing of the serialization unit.

Description

technical field [0001] The invention relates to an error correction system and method, in particular to a time sequence error correction system and method for a sending end in a high-speed serial data transmission system. Background technique [0002] In a high-speed serial data transmission system, in the process of serializing parallel data, the sending end usually uses a half-speed clock to serialize parallel data, that is, the clock period is half of the data bit width. In the process of serialization, due to the increase of the data rate, the timing is easy to make mistakes, especially affected by changes in the process, power supply, temperature, etc., the timing problem is particularly prominent. [0003] During the data serialization process, the delay deviation of the synchronous clock and data on their respective paths makes the timing of the clock and data unable to meet the requirements of data serialization, which eventually leads to increased serial data jitter...

AI Technical Summary

Problems solved by technology

[0003] In the process of data serialization, the delay deviation of the synchronous clock and data on their respective paths makes the timing of the clock and data unable to meet the requirements of data serialization, which eventually leads to increased serial data jitter and even data bit errors

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