ZeROA: Zero Clock Skew Rotary Oscillatory Array

Honkote, Vinayak; Taşkın, Barış

doi:10.1109/tvlsi.2011.2158458

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…Back-to-back inverters are connected to this parallel loop to compensate for the [12,15,21,30,35,39], including zero clock skew operation [14,16], interconnect modeling [13], frequency estimation [32], phase estimation and control [31,34,38], phase noise [29] and variation-sensitivity [33]. Prototype designs have been demonstrated [28,37].…”

Section: Traveling Wave Clocksmentioning

confidence: 99%

High-performance, low-power resonant clocking

Guthaus

Taşkın

2012

Proceedings of the International Conference on Computer-Aided Design

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Clock distribution networks consume a significant portion of onchip power. Traditional buffered clock distribution power is limited by frequency, capacitance, and activity rates. Resonant clock distributions can reduce this power by "recycling" energy on-chip and reducing the overall clock power. This tutorial introduces recent techniques for distributed-LC, traveling wave, and standing wave resonant clock distributions. In particular, the tutorial discusses the recent developments and open research problems. The tutorial covers both circuits, computer-aided design algorithms and methodologies for resonant clocking.

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Section: Traveling Wave Clocksmentioning

confidence: 99%

High-performance, low-power resonant clocking

Guthaus

Taşkın

2012

Proceedings of the International Conference on Computer-Aided Design

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“…However, 2.43× higher wirelength [12] is necessary for low-skew synchronization due to only sourcing the clock signal from one RTWO ring. On the other hand, when the rings are used to constitute an rotary oscillator array (ROA), such as the extension of [12] in [14] to perform wiresnaking on an ROA instead of low-skew implementation, the ROA can be used as a multisource single-phase clock generator (and with no wirelength overhead as reported in [14]). This is because in steady state, all the rings in the ROA are coupled and oscillating at a uniform frequency.…”

Section: Introductionmentioning

confidence: 99%

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

Teng

Taşkın

2015

IEEE Trans. VLSI Syst.

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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.Index Terms-Clock distribution network design, resonant clock, synthesis.

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Resonant frequency divider design methodology for dynamic frequency scaling

Teng

Taşkın

2013

2013 IEEE 31st International Conference on Computer Design (ICCD)

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ZeROA: Zero Clock Skew Rotary Oscillatory Array

Cited by 4 publications

References 14 publications

High-performance, low-power resonant clocking

High-performance, low-power resonant clocking

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

Resonant frequency divider design methodology for dynamic frequency scaling

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