The RTBx automatically timestamps data it collects, using either an internal clock or that on embedded hardware. This removes the need to configure a timestamping procedure on the embedded target itself, which would incur code size and execution time overheads.
Compared to other hardware that can be used for timestamping such as debuggers and logic analyzers, the RTBx can collect trace data for far longer, meaning that it doesn't become a bottleneck in your testing.