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阐述了基于N IOS II软核处理器和以太网控制芯片RTL 8019A S的网络接口设计。简要介绍了基于FPGA的SOPC(System On P rogramm ab le Ch ip,简称可编程片上系统)技术,给出了网络接口的软硬件的设计和实现。此设计增强了系统的灵活性,并且结构简单适应于不同应用领域对接入网络的需求。
The network interface design based on N IOS II soft-core processor and Ethernet control chip RTL 8019A S is expounded. This paper briefly introduces the FPGA-based SOPC (System On Programmable Chip) technology, and presents the design and implementation of the hardware and software of the network interface. This design enhances the flexibility of the system and has a simple structure adapted to the requirements of access networks in different application areas.