SOC参数自动配置设计方法与功耗优化  

Design of automatic SOC parameter configuration and power optimization

作　　者：张宇弘[1] 王界兵 汪乐宇[1] 严晓浪[3] 

机构地区：[1]浙江大学数字技术及仪器研究所,浙江杭州310027 [2]赛安微系统有限公司,浙江杭州310027 [3]浙江大学超大规模集成电路研究所,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2005年第11期1740-1745,共6页Journal of Zhejiang University：Engineering Science

基　　金：国家"863"高科技研究发展计划资助项目(2002AA1Z1050)

摘　　要：在片上系统(SOC)的参数化设计方法中,参数的大量增加加大了SOC集成和参数优化选择的复杂程度.新方法对原有的硬件描述语言进行了扩展,并建立了参数自动配置环境,该环境由一组Perl和Shell脚本组成,能够自动根据参数设置生成正确的硬件描述.通过分析SOC参数的基本属性,利用邻域搜索算法针对功耗进行自动参数优化,得到性能和功耗的最优解.该方法可以加快IP设计和SOC集成进程,减轻设计强度和减少设计错误,大大缩短了优化周期.该方法已成功应用于一款RISC处理器和基于它的SOC开发.Parameter design has been introduced into SOC design for the requirement of specific application, but a large number of parameters increase the complexity of SOC integration and parameter choice. An automatic parameter configuration environment made up of Perl and Shell scripts was built. After extending the original HDL to more flexible language, the circuit module was described by the flexible language and transferred to Verilog description under the automatic parameter configuration environment. For obtaining the optimum performance and power, based on the property analysis of SOC parameters, a neighborhood-region-search algorithm was presented to optimize the selection of parameters. The method can speed up IP design and SOC integration procedure, and can also alleviate design effort and avoid errors. The method has been adopted in an RISC processor and SOC design using the processor.

关 键 词：SOC 参数化设计 低功耗 邻域搜索算法 

分 类 号：TN47[电子电信—微电子学与固体电子学] TP303[自动化与计算机技术—计算机系统结构]