Switching Activity Calculation of VLSI Adders
Using exact swilching activity rates at all internal nodes when calculating energy of digital circuils is believed to result in improved accuracy over to the use of average switching activity.We compare the two approaches in the case of the Kogge stone adder implemented with Weinberger and Ling addition recurrences. The difference between the two is less than 4% Further we examined the accuracy of the energy/delay estimation technique when using exact and average switching activities in 65nm,45nm, 32nm and 22nm technology nodes.Even then the worse case error in estimating energy is under 15% at 22nm technology node for 64-bit Kogge-Stone adder. The error in delay estimation is less than 6% for all the nodes. Our finding is that using average switching activity does not yield large errors while simplifying the estimation process greatly.
Digital Circuits Switching Activity Energy Consumption Energy-Delay Estimation
Dursun Baran Mustafa Aktan Hossein Karimiyan Vojin G.Oklobdzija
University of Texas at Dallas,Richardson,TX 75082 USA
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
46-49
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）