介质独立接口(MII)、吉比特介质独立接口(GMII)和通用串行接口(GPSI)都是用来连接介质访问控制子层(MAC)和物理层?穴PHY?雪的常用接口,目的是将不同的物理介质用统一的接口连到MAC控制器。文中对三种接口的工作机制和信号时序关系进行了分析,给出了利用这些接口实现以太网MAC-MAC直接连接的实现方案,并通过具体系统对其中的两种连接方案进行了验证。
- Abstract:
- The purpose of media independent interface,gigabit media independent interface and general purpose serial interface are to provide an interconnection between MAC sublayer and PHY sublayer, so that identical medi-a access controllers may be connected with different form of physical media. This paper introduces a solution to directly connect Ethernet MAC-MAC by MII, GMII or GPSI according to work mechanism and timing diagram of three interfaces. We apply the solution to our project, and it works well.
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