A Near-Threshold-Voltage Network-on-Chip with a Metastability Error Detection and Correction Technique for Supporting a Quad-Voltage/Frequency-Domain UltraLow-Power System-on-a-Chip

📋 论文概要

该论文提出了一种面向近阈值电压（NTV）工作的网络片上系统（NoC），通过引入亚稳态错误检测与纠正技术来解决多电压/频率域下因电压大幅降低导致的时序鲁棒性问题。设计了适用于超低功耗SoC的NoC架构，实现了高速且能量高效的片上通信。

💡 主要创新点

• 针对近阈值电压下NoC的亚稳态错误提出专门的检测与纠正技术，提升系统鲁棒性。
• 在数字电源与时钟电路领域，为多V/F域SoC提供了一种低功耗、高可靠性的NoC设计方案。

🏷 关键词

📄 原文摘要

demand a new system-on-a-chip (SoC) that is ultra-low power (mW or even sub-mW level) but highly robust. Such an SoC typically integrates heterogeneous building blocks for supporting a range of features, each ideally operating in an independent voltage and frequency (V/F) domain [1]. In such an architecture, a network-on-chip (NoC) has played a key role to enable high-speed and energy-efficient networking. However, it is increasingly challenging to meet a robustness target since each V/F domain uses a significantly different voltage, e.g., from nominal 1V to nearthreshold voltage (NTV), and clock frequency, e.g., from hundreds of MHz to sub-MHz. Furthermore, any two clocks may have uncertain and time-varying phase and frequency relationships. These properties significantly worsen

👥 作者与机构

Chuxiong Lin1, Weifeng He1, Yanan Sun1, Bingxi Pei1, Zhigang Mao1, Mingoo Seok2

Shanghai Jiao Tong University, Shanghai, China Columbia University, New York, NY 1 2 Emerging embedded systems, such as autonomous robots/vehicles