%0 Journal Article
%T RELIABLE DATA SYNCHRONIZATION IN GALSĄŻ SOC
%A VIVEK E. KHETADE
%A DR. S. S. LIMAYE
%J International Journal of Engineering Science and Technology
%D 2013
%I Engg Journals Publication
%X Synchronizer used for data synchronization posses non-zero probability of failure in Globally Asynchronous Locally synchronous System on Chip. It plays very crucial role in determining the reliability of system. Synchronizer is susceptible to metastability if asynchronous data changes in setup and hold time window. Theoutput of synchronizer is indeterminate .This risk must be mitigated. In this paper structure of synchronizer is proposed for improved reliability. It determines change of data in the metastability window with signal setup start (SS) and hold end(HE) . To receive synchronised data, it samples synchronizer which is placed in parallelwith operating synchronizer .This parallel placed synchronizer receives delayed data. This proposed architecture is modelled with VHDL and simulated with ModelSim SE6.2C for functional correctness. Asynchronous data rate is generated at varying frequency .MTBF is improved substantially with the increase penalty of one cycle.
%K Data synchronisation
%K Globally Asynchronous Locally synchronous synchronizer (GALS)
%K metastability
%K SOC.
%U http://www.ijest.info/docs/IJEST13-05-02-098.pdf