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ROA-Brick Topology for Low-Skew Rotary Resonant Clock Network Design.

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Title: ROA-Brick Topology for Low-Skew Rotary Resonant Clock Network Design.
Authors: Teng, Ying1, Taskin, Baris1
Source: IEEE Transactions on Very Large Scale Integration (VLSI) Systems. Nov2015, Vol. 23 Issue 11, p2519-2530. 12p.
Subjects: Clock distribution networks, Electric circuit networks, Clock circuits (Electronics), Time-varying networks, Electric networks
Abstract: This paper presents a topology-based solution for a low-skew rotary oscillator array (ROA) clock distribution network design. An ROA-brick structure is proposed that limits the traveling wave oscillation to only two uniform ring rotation directions in the ROA-brick: all the rings in clockwise (CW) direction or all the rings in counter CW direction. An ROA built from the ROA-bricks has the following advantages: 1) similar to the ROA-brick, only two uniform ring rotation directions are feasible in the ROA; 2) the same phase tapping points of all the rings in the ROA are identifiable; and 3) these same phase tapping points of the ROA are independent from the two possible rotation directions. It is mathematically proved that the ROA-brick is the only ROA structure, which can limit the ring rotation direction combinations so as to guarantee the generation of same phase clock signals. The proposed brick-based ROA clock generation and distribution networks are designed for ISPD 10 clock benchmarks demonstrating the gigahertz operation with the low-skew clock generation and distributions through HSPICE. [ABSTRACT FROM PUBLISHER]
Copyright of IEEE Transactions on Very Large Scale Integration (VLSI) Systems is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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PubType: Academic Journal
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  Data: ROA-Brick Topology for Low-Skew Rotary Resonant Clock Network Design.
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  Data: <searchLink fieldCode="DE" term="%22Clock+distribution+networks%22">Clock distribution networks</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+circuit+networks%22">Electric circuit networks</searchLink><br /><searchLink fieldCode="DE" term="%22Clock+circuits+%28Electronics%29%22">Clock circuits (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Time-varying+networks%22">Time-varying networks</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+networks%22">Electric networks</searchLink>
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  Label: Abstract
  Group: Ab
  Data: This paper presents a topology-based solution for a low-skew rotary oscillator array (ROA) clock distribution network design. An ROA-brick structure is proposed that limits the traveling wave oscillation to only two uniform ring rotation directions in the ROA-brick: all the rings in clockwise (CW) direction or all the rings in counter CW direction. An ROA built from the ROA-bricks has the following advantages: 1) similar to the ROA-brick, only two uniform ring rotation directions are feasible in the ROA; 2) the same phase tapping points of all the rings in the ROA are identifiable; and 3) these same phase tapping points of the ROA are independent from the two possible rotation directions. It is mathematically proved that the ROA-brick is the only ROA structure, which can limit the ring rotation direction combinations so as to guarantee the generation of same phase clock signals. The proposed brick-based ROA clock generation and distribution networks are designed for ISPD 10 clock benchmarks demonstrating the gigahertz operation with the low-skew clock generation and distributions through HSPICE. [ABSTRACT FROM PUBLISHER]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Very Large Scale Integration (VLSI) Systems is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1109/TVLSI.2014.2385835
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Clock distribution networks
        Type: general
      – SubjectFull: Electric circuit networks
        Type: general
      – SubjectFull: Clock circuits (Electronics)
        Type: general
      – SubjectFull: Time-varying networks
        Type: general
      – SubjectFull: Electric networks
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      – TitleFull: ROA-Brick Topology for Low-Skew Rotary Resonant Clock Network Design.
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              Text: Nov2015
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