MCS-51单片机与FPGA接口的逻辑设计

随着可编程逻辑器件及EDA技术的发展，在系统设计中经常会用到FPGA来扩展单片机的相关资源。单片机具有性价比高、功能灵活、易于人机对话、强大的数据处理能力等特点；而FPGA则具有高速、高可靠性以及开发便捷、规范等特点，根据两者的特点，设计一种基于MCS-51单片机与FPGA的总线接口逻辑电路，实现单片机与可编程逻辑器件数据与控制信息的可靠通信。

Logic Design for Bus Interface of MCS-51 Single Chip Microcomputer and FPGA

With the development of programmable logic devices and EDA technology, FPGA is often used to expand the related resources of single chip microcomputer in system design. Single chip microcomputer has the features of cost-effective, flexible function, easy dialogue to man-machine and a strong ability to deal with the data combine, but FPGA has the specialties of high-speed, high reliability, convenient development and standard. With the both characteristics, a type of bus interface log- ic circuits is designed based on MCS-51 single chip microcomputer and FPGA to realize the reliable communication of information controlling between single chip microcomputer and programmable logic device data.