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AN1089 - Parallel Cyclic Redundancy Check (CRC) for HOTLink® | サイプレス セミコンダクタ

AN1089 - Parallel Cyclic Redundancy Check (CRC) for HOTLink®

最終更新日: 
2017 年 9 月 12 日
バージョン: 
*C

AN1089 discusses using CRC codes to insure data integrity over high-speed serial links, such as Fibre Channel, ESCON and other standards supported by Cypress's CY7B923 and CY7B933 HOTLink devices. It also shows why parity is not useful and then describes the most common CRC codes (CRC-16 and CRC-32) used in high-speed communications systems.

はじめに

This application note discusses using CRC codes to ensure data integrity over high-speed serial links, such as Fibre Channel, ESCON™ and other interfaces supported by Cypress’s CY7B923/CY7B933 HOTLink® devices. It also shows why parity and Hamming codes are not useful, and describes common CRC codes used in high-speed communications systems. Finally, algorithms for parallel calculation of CRC–16 and CRC–32 are presented.

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

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