一种面向WIA-PA系统级芯片的低功耗优化策略  

A Low-power Optimization Strategy for WIA-PA System on Chip

作　　者：谢闯[1,2,3] 杨志家 王剑[1,2] XIE Chuang;YANG Zhijia;WANG Jian(Laboratory of Networked Control Systems,Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang ll0016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110015,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院沈阳自动化研究所网络化控制系统重点实验室,辽宁沈阳110016 [2]中国科学院机器人与智能制造创新研究院,辽宁沈阳110016 [3]中国科学院大学,北京100049

出　　处：《信息与控制》2018年第6期713-721,729,共10页Information and Control

基　　金：国家科技重大专项资助项目(2015ZX03003010)

摘　　要：WIA-PA系统级芯片是WIA-PA设备的核心组件,在设备的整体功耗中占有较大的比重.根据WIA-PA设备的应用环境和工作特点,通过对多种低功耗优化方法进行分析,提出了一种面向WIA-PA系统级芯片的低功耗优化策略.该策略采用门控时钟、异步电路应用、系统级优化、工艺制程优选等多种方法,从不同电路类型、不同设计层次等多个维度考虑,最终达到对静态功耗和动态功耗两者共同优化的目的. WIA-PA系统级芯片先后完成2次流片:第1次完成功能验证,第2次实现了基于所提策略的低功耗优化.通过对2次流片样片的功耗测试数据进行分析和对比,优化后的样片对比优化前动态功耗降低了71.2%,静态功耗降低了99.5%.该对比结果证明了优化策略的有效性.The wireless networks for industrial automation process automation (WIA-PA)system on chip (SoC)is the core component of WIA-PA wireless devices and occupies a large proportion of the total power consumption of the device.According to the application environment and working characteristics of WIA-PA devices,we study a variety of low-power optimization methods and propose a comprehensive low-power optimization strategy for WIA-PA SoC.The strategy combines multiple methods,.e.g.,gate control clock,asynchronous circuit application,system-level optimization,and process optimization.In addition,the strategy achieves both static and dynamic power consumption optimization by considering different circuit types and design levels.WIA-PA SoC has been completed for two times of type-out.The first time completes functional verification,whereas the second time realizes the proposed low-power optimization.We test the sample chips two times.Experimental data of power consumption reveal that the dynamic power consumption of the optimized sample chip is reduced by 71.2% and the static power consumption is reduced by 99.5%.The comparison results demonstrate the effectiveness of the proposed optimization strategy.

关 键 词：工业过程无线网络标准 系统级芯片 低功耗设计 时钟域 电源管理单元 

分 类 号：TN47[电子电信—微电子学与固体电子学]