SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
AVBTP assumes that AVB node media clocks are clocked by free-running oscillators. It is also assumed that the node's internal concept of wall clock time has been synchronized to the PTP Grandcontroller. AVBTP media clock sources embed "AVBTP Presentation Timestamps" in AVBTP streaming packets. Figure 12-500 illustrates the relationship between PTP network time and AVBTP Presentation Timestamps.