为了提高微机系统的集成度并实现微机系统的功能重构 ,利用大规模可编程逻辑器件集成度高及用户可编程等特点 ,借助EDA工具 ,设计了基于大规模可编程逻辑器件的微机系统接口电路。设计实例表明 ,不仅可将多个接口电路的功能集成在同一块芯片上 ,而且可重构接口电路的功能。 In order to improve the integration degree of microcomputer system and realize the function reconstruction of the microcomputer system, the large-scale programmable logic device integration and user-programmable features are used to design a large-scale programmable logic device-based microcomputer system interface Circuit. The design example shows that not only the functions of multiple interface circuits can be integrated on the same chip, but also the functions of interface circuits can be reconfigured.