A method and apparatus to provide a low voltage reference generation. The frequency of the oscillating signal may be shifted to remove its arbitrary nature by application of multiple tuning signals or values to the oscillator. The method comprises the following steps: \u2014The incoming stream of sequences 15-19,25-29,35-39 is collected into the Repeat Buffer RB and into the Play-Out-Buffer POB. The barrier coat may be an intermediate coat between the bond coat and a top coat, or it may be the top coat.