SHANG Xinchao, SHAN Weiwei, XIANG Yiming, et al., “Low Overhead and Fast Reaction Adaptive Clocking System for Voltage Droop Tolerance,” Chinese Journal of Electronics, vol. 28, no. 3, pp. 503-507, 2019, doi: 10.1049/cje.2019.02.009
Citation: SHANG Xinchao, SHAN Weiwei, XIANG Yiming, et al., “Low Overhead and Fast Reaction Adaptive Clocking System for Voltage Droop Tolerance,” Chinese Journal of Electronics, vol. 28, no. 3, pp. 503-507, 2019, doi: 10.1049/cje.2019.02.009

Low Overhead and Fast Reaction Adaptive Clocking System for Voltage Droop Tolerance

doi: 10.1049/cje.2019.02.009
Funds:  This work is supported by National Natural Science Foundation of China (No.61574033, No.61774038), and National 863 project (No.2015AA016601).
  • Received Date: 2017-03-30
  • Publish Date: 2019-05-10
  • Variation in on-chip power supply continues to be a major challenge to limit circuit performance. To mitigate the impact of high-frequency voltage droop, a novel all-digital adaptive clock system is proposed. The adaptive clock system is composed of a droop detector and an adaptive clock generator, which directly stretch the clock period when the circuit suffers from the supply voltage droop. The droop detector circuit detects the VDD droop and the digital adaptive clock generator circuit selects the stretched clock to prevent timing-margin failures. The response time for droop detection and clock stretch can be as fast as one cycle. The whole scheme is used on a test circuit under SMIC 40nm CMOS process with a layout area of 900um*1100um. Postlayout simulation results demonstrate power reductions are 7% at 1.1V and 15% at 0.7V for a 10% VDD droop, respectively.
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  • J. Li, G. Dong, Z. Wang, and X.C. Ye "Statistical interconnect crosstalk noise model and analysis for process variations", Chinese Journal of Electronics, Vol.24, No.1, pp.83-87, 2015.
    X. Li, X. Wu and J.N. Chen, "New design method of LC VCO improving PVT tolerance of phase noise", Chinese Journal of Electronics, Vol.24, No.3, pp.550-554, 2015.
    C. Kwanyeob and S. Mukhopadhyay, "A 3 MHz-to-1.8 GHz 94 uW-to-9.5 mW 0.0153-mm2 all-digital delay-locked loop in 65-nm CMOS", IEEE Asian Solid-State Circuits Conference (A-SSCC), KaoHsiung, Taiwan, China pp.361-364, 2014.
    K. Wilcox, et al., "Steamroller module and adaptive clocking system in 28 nm CMOS", IEEE Journal of Solid-State Circuits, Vol.50, No.1, pp.24-34, 2015.
    K.A. Bowman, et al., "A 16 nm all-digital auto-calibrating adaptive clock distribution for supply voltage droop tolerance across a wide operating range", IEEE Journal of Solid-State Circuits, Vol.51, No.1, pp.8-17, 2016.
    K.A. Bowman, et al., "A 22 nm all-digital dynamically adaptive clock distribution for supply voltage droop tolerance", IEEE Journal of Solid-State Circuits, Vol.48, No.4, pp.907-916, 2013.
    W.W. Shan and X.C. Shang, "Timing error prediction AVFS with detection window tuning for wide-operating-range ICs", IEEE Trans. on Circuits and Systems Part Ⅱ, (Early access).
    M.S. Floyd, et al., "Adaptive clocking in the POWER9TM processor for voltage droop protection", IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, California, USA, pp.444-445, 2017.
    W.W. Shan and L. Wan, "A Low Overhead, within-a-cycle adaptive clock stretching circuit with wide operating range in 40nm CMOS", IEEE Trans. on Circuits and Systems Part Ⅱ, (Early access).
    W.W. Shan, L.X. Shi, and J. Yang, "In-situ timing monitor based adaptive voltage scaling system for wide-voltage-range applications", IEEE Access, Vol.5, pp.15831-15838, 2017.
    J. Zhou, et al., "An ultra-low voltage level shifter using revised wilson current mirror for fast and energy-efficient widerange voltage conversion from sub-threshold to I/O Voltage", IEEE Trans. on Circuits and Systems Part I, Vol.62, No.3, pp.697-706, 2015.
    A. Roy and B.H. Calhoun, "Exploring circuit robustness to power supply variation in low-voltage latch and register-based digital systems", IEEE International Symposium on Circuits and Systems (ISCAS), Antalya, Turkey, pp.273-276, 2016.
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