AFDX网络端系统芯片设计与实现

Research and design of AFDX network end-system chip

AFDX端系统核心芯片及技术是实现AFDX网络通信的基础和关键,广泛应用在航空领域的网络通信和控制系统中。在深入解读、分析AFDX网络总线协议及通信机理上,提出了一种端系统芯片的设计方案,详细说明了端系统芯片的架构设计、工作原理及技术优势。该型AFDX网络端系统So C芯片满足航空系统小型化、低功耗的设计要求,芯片内部集成ARM922T处理器、AFDX网络终端协议处理单元、双余度10/100M AFDX MAC端口以及基于DMA的高性能数据传输PCI总线,在片上实现UDP/IP协议栈,是一款为大型客机机载设备提供高速互联网络的终端系统So C芯片。

Avionics Full Duplex Switched Ethernet（ AFDX） end system core chip and technology are the key and foundation of realizing AFDX network communication. It is widely used in aviation field of network communication and control system. Based on the deeply analysis AFDX network bus protocol and communication mechanism, this paper provides a solution of AFDX End- system chip, and elaborates the End- system architecture, working principle and technical advantages. The AFDX network End- system So C chip meets the design reguirements of miniaturization and low power consumption of the aviation system. The chip contains ARM922 T processor, AFDX protocol processing terminal, double redundancy 10 / 100 M AFDX MAC port and high- performance data transmission PCI bus based on DMA, and realizes the UDP / IP protocol stack on chip. The End- system So C chip provides high-speed Internet for large aircraft airborne equipment terminal system.