GTX non-coding transmission method and device

Abstract

The invention discloses a GTX non-coding transmission method and device. The method comprises: using external data scrambling to replace a GTX internal line codec, closing a offline encoder in GTX transceiver setting, sending data to be sent to a GTX sending FIFO after parallel scrambling, and the received data being directly converted into parallel data without passing through a linear decoder; and after the data is converted into the parallel data, the data being subjected to parallel synchronization through parallel frame synchronization, and the synchronized data being subjected to descrambling operation, so that original data to be sent and the like can be recovered. According to the invention, the wire coder / decoder module is directly shielded at the bottom layer. A scrambling moduleis added at a data sending end, a frame synchronization and descrambling module is added at a data receiving end, and data is scrambled when the data is sent externally, so that 01 overturning timesin the data can be well ensured, the problems of clock sending and direct current bias are solved, and extra line bandwidth does not need to be increased.

Description

technical field [0001] The present invention relates to the field of communication technology, and more specifically, to a GTX codeless transmission method and device. Background technique [0002] In the design of the current system-level interconnect rate that has reached Gbps, the advanced high-speed serial technology quickly replaces the traditional parallel technology and becomes the mainstream of the industry. High-speed serial technology can not only bring higher performance, lower cost and more simplified design, overcome the parallel speed bottleneck, but also save I / O resources and make the wiring of printed boards simpler. Therefore, it is more and more widely used in various system designs, including PCs, consumer electronics, mass storage, servers, communication networks, industrial computing and control, test equipment, etc. [0003] At present, mainstream FPGAs integrate GTX transceivers, built-in high-speed serial-to-parallel conversion, clock and data recov...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a GTX codeless transmission method and device, solve the problems of design difficulty and design cost proposed in the background technology, and directly shield the line coder / decoder module at the bottom layer , a scrambling module is implemented at the data sending end, and a frame synchronization and descrambling module is added at the data receiving end, and the data is scrambled when the data is sent externally, which can well ensure the number of 01 flips in the data, Solve clock routing and DC biasing without adding additional line bandwidth

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