Time-Average-Frequency and Special Clocking Techniques: Gapped Clock, Stretchable Clock, and Pausible Clock

Gapped clocking is a commonly used technique in optical transport networks (OTNs), broadcast video, and other applications. This chapter discusses the stretchable and pausible clock in connection with the application environment of a NoC (network-on-chip). The gapped clock is produced by removing pulses from a clock signal generated by an ?>untouchable?> clock source. The chapter also discusses the techniques, including the gapped clock, stretchable clock, pausible clock, and possible others all have the Time-Average-Frequency (TAF) concept work behind the scene. All these special clocking techniques illustrate the fact that the essence of clock frequency is the accomplishment of a specified number of operations within the time window of 1 s. An important topic related to the gapped clock, pausible clock, and stretched clock is clock jitter. It is crucial to understand that the pulse-length modification introduced by these special clocking techniques is an intended operation.