Intra-Flit Skew Reduction for Asynchronous Bypass Channel in NoCs Conference Paper uri icon


  • Various novel NoC designs attempt to improve network throughput and latency by leveraging upon asynchronous bypass and specialized clock routing. The performance of such architectures is limited by the skewing of signal transitions on the bit-lines of link due to crosstalk noise. This work proposes a two-step technique: TransSync- RecSync, to eliminate packet errors resulting from inter-bit-line transition skew. TransSync preemptively adds delay to bits in a flit before they are transmitted to overcome skewing of transitions on link while RecSync de-skews the bits at the receiving end by delaying all the transitions by the same amount as the maximum skew on the bus. The approach adds minimally to router complexity and involves no wire overhead. The proposed scheme when employed to augment a NoC design with asynchronous bypass channel was found to improve the average network latency by 38%. 2011 IEEE.

name of conference

  • 2011 24th International Conference on VLSI Design: concurrently with the 10th International Conference on Embedded Systems Design

published proceedings

  • 2011 24th Internatioal Conference on VLSI Design

author list (cited authors)

  • Kumar, R., Yoon Seok Yang, .., & Gwan Choi.

citation count

  • 6

complete list of authors

  • Kumar, R

publication date

  • January 2011