资料接收装置与方法;Data receiving device and method thereof

摘要

本发明揭露了一种资料接收装置及方法，用来辨识一资料讯号所属之一传输模式。该方法包含：依据一来源时脉产生一第一参考时脉；依据该资料讯号以及一资料回复时脉产生一相位侦测讯号；依据该相位侦测讯号调整该第一参考时脉之相位以产生该资料回复时脉；依据该相位侦测讯号与该第一参考时脉产生一第二参考时脉，该第二参考时脉与该资料回复时脉频率相同并具有一相位差；依据该第二参考时脉以及该资料讯号侦测该传输模式，以产生一模式讯号；以及依据该模式讯号决定是否改变该第一参考时脉之频率。; generating a phase detection signal according to the data signal and a data recovery clock; adjusting the phase of the first reference clock according to the phase detection signal to generate the data recovery clock; generating a second reference clock according to the phase detection signal and the first reference clock, the second reference clock and the data recovery clock having the same frequency and a phase difference; detecting the transmission mode according to the second reference clock and the data signal to generate a mode signal; and deciding whether to change the frequency of the first reference clock according to the mode signal.