中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

导航

电子与封装 ›› 2018, Vol. 18 ›› Issue (2): 40 -45. doi: 10.16257/j.cnki.1681-1070.2018.0021

• 电路设计 • 上一篇    下一篇

一种SoC低功耗模式设计与实现

史兴强,范学仕   

  1. 中科芯集成电路股份有限公司,江苏 无锡 214072
  • 收稿日期:2017-10-24 出版日期:2018-02-20 发布日期:2018-02-20
  • 作者简介:史兴强(1976—),男,江苏宜兴人,本科学历,1999年毕业于南京理工大学电子工程专业,高级工程师,现从事SoC数字设计及低功耗技术研究。

The Design and Implementation for Low Power Mode on SoC

SHI Xingqiang,FAN Xueshi   

  1. China Key System Co,Ltd,Wuxi 214072,China
  • Received:2017-10-24 Online:2018-02-20 Published:2018-02-20

摘要: 为降低芯片功耗,提升性能,从系统级、结构级和RTL级3个层次提出了一种片上系统(System on Chip,SoC)芯片的低功耗设计方法,并在样片中得以验证。在系统级层面,根据SoC芯片的不同工作场合,在正常运行模式的基础之上,设计了睡眠、停止和待机3种低功耗模式。在结构级层面,将整个芯片划分为VDD、VDDA和VBAT 3个电压域,以降低系统功耗。在RTL级,针对不同的模式切换,设计了时钟管理技术,实现了对不同模式下不同时钟的控制。仿真和实验结果证明了设计的合理性,实测数据表明,睡眠模式最多降低59.1%的功耗,停止和待机模式降低了3~4个数量级。

关键词: SoC, 低功耗, 睡眠模式

Abstract: For the sake of reducing power consumption and improving system performance,an low power design method for SoC is presented in this paper in the views of system level,structure level and RTL level which has been confirmed in an example wafer.Taking various working conditions into consideration,the sleep mode and standby mode are designed according to operating principle in run mode.In order to optimize power consumption,this whole system power is provided by 3 kind of voltages,VDD,VDDA and VBAT.Besides,a clock management technology is proposed to accomplish switch of different clocks among various modes in RTL level.The simulation and experiment results shows that the power-consume in low power mode is decreased 59.1%at most.In addition,the consumptions in stop mode and standby mode are reduced about 3~4 order of magnitude.

Key words: SoC, low power, sleep mode

中图分类号: