Revisiting Simple and Energy Efficient Embedded Processor Designs Toward the Edge Computing
Kaoru Saso, Yuko Hara–Azumi · IEEE Embedded Systems Letters · 2019
As interest in architectural designs for “Internet of Things (IoT) edge computing” is growing, conflicting requirements between energy-efficiency and design-productivity are becoming remarkably crucial. Owing to the increasing diversity of IoT applications, the domain-oriented designs of processors should be reassessed. By focusing on one application domain that is control-intensive and mainly operates “light” computations, we examine issues of current processor designs, present simple and energy-efficient processors, and justify the design strategies that we employed. Our evaluation shows the effectiveness of our processors, in terms of circuit area and energy-efficiency, over ARM Cortex-M0, and reveals important findings in architectural designs for severely constrained IoT edge computing.