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Minimal-power, delay-balanced smart repeaters for global interconnects in the nanometer regime.

Weerasekera, Roshan and Pamunuwa, Dinesh B. and Zheng, Li-Rong and Tenhunen, Hannu (2008) Minimal-power, delay-balanced smart repeaters for global interconnects in the nanometer regime. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 16 (5). pp. 589-593. ISSN 1063-8210

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    Abstract

    A smart repeater is proposed for driving capacitively-coupled, global-length on-chip interconnects that alters its drive strength dynamically to match the relative bit pattern on the wires and thus the effective capacitive load. This is achieved by partitioning the driver into main and assistant drivers; for a higher effective load capacitance both drivers switch, while for a lower effective capacitance the assistant driver is quiet. In a UMC 0.18-mum technology the potential energy saving is around 10% and the reduction in jitter 20%, in comparison to a traditional repeater for typical global wire lengths. It is also shown that the average energy saving for nanometer technologies is in the range of 20% to 25%. The driver architecture exploits the fact that as feature sizes decrease, the capacitive load per transistor shrinks, whereas global wire loads remain relatively unchanged. Hence, the smaller the technology, the greater the potential saving.

    Item Type: Article
    Journal or Publication Title: IEEE Transactions on Very Large Scale Integration (VLSI) Systems
    Additional Information: "©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." "This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder."
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 31099
    Deposited By: Mr Michael Dunne
    Deposited On: 18 Dec 2009 14:25
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 16:53
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/31099

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