SMPTE ST 12-3 – Time Code for High Frame Rate Signals and Formatting in the Ancillary Data Space
This standard specifies time code formats with the frame counts 72, 96, 100 and 120 and the frame count 120 with drop-frame compensation. This standard also specifies a transmission format for conveyance of the time code and frame count in the ancillary data space of serial digital interfaces.
