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Title: High robustness energy- and area-efficient dynamic-voltage-scaling 4-phase 4-rail asynchronous-logic Network-on-Chip (ANoC)
Authors: Ho, Weng-Geng
Chong, Kwen-Siong
Lwin, Ne Kyaw Zwa
Chang, Joseph Sylvester
Gwee, Bah Hwee
Keywords: CMOS logic circuits
Issue Date: 2015
Source: Ho, W.-G., Chong, K.-S., Lwin, N. K. Z., Gwee, B. H., & Chang, J. S. (2015). High robustness energy- and area-efficient dynamic-voltage-scaling 4-phase 4-rail asynchronous-logic Network-on-Chip (ANoC). 2015 IEEE International Symposium on Circuits and Systems (ISCAS), 1913-1916.
Abstract: We propose an 18-bit 5-interface asynchronouslogic Network-on-Chip (ANoC) router based on the quasi-delayinsensitive (QDI) realization approach for high secured cryptography applications. There are four key features of the proposed ANoC router. First, it embodies the novel high-speed low-power Sense-Amplifier Half Buffer 4-rail cells. Second, it is designed based on QDI protocol, and hence is highly robust against process-voltage-temperature (PVT) variations. Third, it is functional for full dynamic voltage scaling from nominal (VDD=1.2V) to sub-threshold (VDD=0.3V) regions, and is potentially excellent for low power management applications. Fourth, it embodies a distributed-based XY routing algorithm to utilize a 4-bit header of flow control unit (flit) for routing up to 4×4 cluster, hence minimizing the routing overhead. We realize the proposed ANoC router (@65nm CMOS), and benchmark it against the reported ANoC router embodying the conventional Weak-Conditioned Half-Buffer (WCHB) QDI realization approach. Both our proposed and reported designs feature the high operation robustness, but our design is 41% more energy efficient, and 21% more area-efficient than the reported counterpart. The prototype of ANoC router occupies only 0.105 mm2 and can operate down to 0.3V. At VDD=0.3V, it dissipates 44 fJ per bit and operate 105 ns per flit.
DOI: 10.1109/ISCAS.2015.7169046
Rights: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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