摘要： 介绍了一种符合IEC 1158标准物理层现场总线芯片架构及其设计实现。芯片设计有曼彻斯特(Manchester)编解码电路、循环冗余校验(Cyclic Redundancy Check，CRC)电路、载波侦测电路、极性纠正电路等功能电路。内置高级可扩展接口(Advanced eXtensible Interface，AXI)电路作为与外置处理器的数据传输总线。完成了此芯片的全部RTL代码编写工作，进行了全面的时序仿真。并以ZYNQ-7015为硬件平台，进行了芯片功能测试，测试结果表明所设计的芯片达到了设计要求。

中图分类号： TN915.04；TN431.2
文献标识码： A
DOI：10.16157/j.issn.0258-7998.211554
中文引用格式： 张立国，刘强，严伟，等. 基于IEC 1158标准的现场总线芯片设计[J].电子技术应用，2022，48(4)：18-23.
英文引用格式： Zhang Liguo，Liu Qiang，Yan Wei，et al. Design of fieldbus chip based on IEC 1158 standard[J]. Application of Electronic Technique，2022，48(4)：18-23.

Design of fieldbus chip based on IEC 1158 standard

Abstract： This paper introduces a kind of physical layer fieldbus chip architecture and its implementation in accordance with IEC 1158 standard. The chip is designed with Manchester codec circuit, Cyclic Redundancy Check(CRC) verification circuit, carrier detection circuit, polarity correction circuit and other functional circuits. The high-speed interface circuit of Advanced eXtended Interface(AXI) is used as the data transmission bus with external processor. The task has completed the RTL code writing of this chip, and carried out a comprehensive time series simulation. The chip function test is carried out on ZYNQ-7015 as hardware platform. The test results show that the chip meets the design requirements.

Key words : fieldbus；IEC 1158；chip design