Wishbone总线的研究与实现

【作者】 董强； 李道煜； 于忠清； 张华；

【机构】 青岛大学信息工程学院；

【摘要】 随着集成电路设计技术的发展,片上系统(SOC)已成为微电子技术当前的研究热点和发展方向。从技术层面看,系统芯片技术是超大规模集成电路发展的必然趋势和主流,它以超深亚微米(VeryDeepSub-Micron,VDSM)工艺和IP核复用(IPReuse)技术为支撑。使用验证过的各种功能IP核构成系统。片上总线(On-ChipBus,OCB)是实现SOC中IP核连接的技术手段,目前不少公司和组织研发了面向SOC设计的总线系统。本文首先简单介绍了SOC相对板上系统以及片上总线相对板上总线具有的优势。接着详细介绍了常用的Wishbone片上总线,分析其特性和使用范围,并举了一个使用Wishbone总线连接ARM核与VGA核的例子。最后,对Wishbone片上总线未来的发展趋势的预测更多还原

【Abstract】 With development of IC technology, SOC has been the focus of microelectronic technique research. SOC technology is the tendency of the ASIC developing, which is supported by VDSM and IP Reuse technique and consists of kinds of verified IP cores. IP cores in SOC are interconnected by On-Chip Buses, and now there have being many On-Chip Buses for SOC. This paper introduces the advantages of SOC compared to System-on-Board and On-Chip Bus to On-Board Bus. Then it discusses Wishbone On-Chip Bus in detail, and analyzes its special function and application,what’s more there is a example using Wishbone connect ARM to VGA IP. Finally, it predicts the trend about the developing of Wishbone On-Chip Bus in the future.更多还原