摘要： 讨论了386EX ISA总线的硬件实现，提出了按模块化的设计方法建立硬件模型，并根据标准ISA总线的要求建立基于VHDL的元件库。元件库具有灵活性好、扩展性强的特点，设计者可根据需要任意修改库单元，灵活的接口功能使用户可方便地将各模块加入到设计中。

关键词: 80386EX, VHDL, ISA, 时序, 总线

Abstract: This article discusses the hardware realization of the 386EX ISA bus, puts forward the thought of building hardware model according to the design way of modularization, and builds the part library of VHDL language according to the ISA bus standard. This part library is apt to use and extend , so the designers can modify the parts easily to meet their requirements. The user can add the model to their designs because of the flexible interface function.

中图分类号: 

• TP336