Shulou(Shulou.com)06/01 Report--

In this article, the editor introduces "what is the principle of selectio" in detail, the content is detailed, the steps are clear, and the details are handled properly. I hope this article "what is the principle of selectio" can help you solve your doubts.

1. Purpose

The purpose of Xilinx SelectIO IP is to convert the serial signal transmitted by LVDS into parallel data.

two。 Principle

The IP contains an IDELAY and an ISERDES are used to adjust bit alignment and byte alignment, respectively.

3. Dynamic phase adjustment (DPA)

Step 1: bit alignment

Control the tap (a total of 32 tap, half the clock optical cycle) for phase alignment, find the center of the data, first find the left boundary of the data, then find the right boundary of the data, and finally take the center of the two boundaries is equivalent to the mean value of the data tap, so that the data can be collected stably.

Step 2: byte alignment

Control slip to delimit, find the training data bytes, and ensure that the subsequent data is normal. For example, if the data sent is A5 and the data obtained by bit alignment above is D2, then A5 can be shifted through bitslip. Specific SDR shifts and DDR shifts can be found in UG471.

After reading this, the article "what is the principle of selectio" has been introduced. If you want to master the knowledge points of this article, you still need to practice and use it yourself to understand it. If you want to know more related articles, you are welcome to follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.