Original scientific paper

https://doi.org/10.17559/TV-20160802143634

DLWUC: Distance and Load Weight Updated Clustering-Based Clock Distribution for SOC Architecture

A. Sridevi ; ECE department, SreeSakthi Engineering College, 839/1-D, Bettathapuram, Pudur, Karamadai, Coimbatore - 641 104, Tamil Nadu, India
V. Lakshmiprabha ; Government College of Technology, Coimbatore, Tamil Nadu, India

Abstract

High-clock skew variations and degradation of driving ability of buffers lead to an additional power dissipation in Clock Distribution Network (CDN) that increases the dimensionality of buffers and coordination among flip-flops. The manual threshold level to predict the Region of Interest (ROI) is not applicable in clustering process due to the complexities of excessive wire length and critical delay. This paper proposes the Distance and Load Weight Updated Clustering (DLWUC) to determine the suitable position of logical components. Initially, the DLWUC utilizes the Hybrid Weighted Distance (HWD) to estimate the distance and construct the distance matrix. The weight value extracted from the sorted distance matrix facilitates the projection of buffers. The updated weight value serves as the base for clustering with labeled outputs. The placement of buffer at the suitable place from load weight updated clustering provides the necessary trade-off between clock provision and load balance. The DLWUC discussed in this paper reduces the size of buffers, skew, power and latency compared to the existing topologies.

Keywords

buffers placement; Clock Distribution Network (CDN); clock mesh; clustering; Flip Flop (FF); Tree based CDN

Hrčak ID:

199131

URI

https://hrcak.srce.hr/199131

Publication date:

21.4.2018.

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