基于RISC结构的自定义接入网协议处理单元  

Custom embedded processor for access network protocols based on reduced instruction set computer

作　　者：刘付娥[1] 葛宁[1] 周祖成[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2007年第10期1673-1676,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：针对接入传送网通信协议的多样性和快速变化的应用需求,将网络处理单元(NPU)的设计理念引入到接入传送网集成电路设计中,提出了基于精简指令集处理器(RISC)结构的自定义接入网协议处理器。通过建立在专用扩展指令集基础上的软件来实现控制类的接入协议。该方法可以在相同的硬件条件下,通过改写软件来完成不同协议的处理,提高了设计的灵活性和可升级性。现场可编程门阵列(FPGA)验证结果表明,该方案在综合面积、可编程性等方面比传统的专用集成电路(ASIC)实现方式都要优越。A network processor unit concept is used in the IC design for access networks to provide multiform Access Network Protocols and to handle rapid changes in application service requirements. The custom reduced instruction set computer core based on an application-specific instruction set extension for the Access Network Protocols implements access protocols in software. Thus, different protocols can be implemented by modifying the software running on the RISC core, which improves design flexibility and upgradeability. Field programmable gate array simulation demonstrates the advantages of this approach compared to traditional application specific integrated circuit solutions.

关 键 词：精简指令集处理器(RISC) 接入网 协议处理 

分 类 号：TN492[电子电信—微电子学与固体电子学] TN915.6