一种位宽可配置的对角交叉校验码算法
A Configurable Bit Width Algorithm of Diagonal Interleaved Parity Code
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摘要: 局部总线标准SPI-4.2已经成为在物理层设备和链路层设备之间进行分组或信元传输的最通用的接口标准.详细介绍了SPI4.2标准中对角交叉校验的工作原理、设计思想和电路结构,并详细讨论了一种可扩展为16X(X≥1)数据宽度的适合硬件FPGA实现的DIP-4码算法,该算法在实际应用中功能正确且实现简单方便.Abstract: The local high speed bus standard SPI-4.2 has already been the universal interface standard for signal transimission between the PHY device and the LINK device.The paper describes the working principium, designing idea and circuit structure of the diagonal interleaved parity code in the SPI-4.2.And it presents a algorithm of DIP-4 which can be configured to be 16X bit width.The algorithm has been proved to be right in practice and implemented easily.
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