RV16:An Ultra-Low-Cost Embedded RISC-V Processor Core  

作　　者：Yuan-Hu Cheng Li-Bo Huang Yi-Jun Cui Sheng Ma Yong-Wen Wang Bing-Cai Sui 成元虎;黄立波;崔益俊;马胜;王永文;隋兵才(College of Computer Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]College of Computer Science and Technology,National University of Defense Technology,Changsha 410073,China

出　　处：《Journal of Computer Science & Technology》2022年第6期1307-1319,共13页计算机科学技术学报（英文版）

基　　金：the National Key Research and Development Project of China under Grant No.2021YFB0300300;the National Natural Science Foundation of China under Grant Nos.62090023,61872374,61672526 and 62172430;the Natural Science Foundation of Hunan Province of China under Grant No.2021JJ10052.

摘　　要：Embedded and Internet of Things(IoT)devices have extremely strict requirements on the area and power consumption of the processor because of the limitation on its working environment.To reduce the overhead of the embedded processor as much as possible,this paper designs and implements a configurable 32-bit in-order RISC-V processor core based on the 16-bit data path and units,named RV16.The evaluation results show that,compared with the traditional 32-bit RISC-V processor with similar features,RV16 consumes fewer hardware resources and less power consumption.The maximum performance of RV16 running Dhrystone and CoreMark benchmarks is 0.92 DMIPS/MHz and 1.51 CoreMark/MHz,respectively,reaching 75%and 71%of traditional 32-bit processors,respectively.Moreover,a properly configured RV16 running program also consumes less energy than a traditional 32-bit processor.

关 键 词：embedded processor RISC-V architecture Internet of Things(IoT) 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]