Two trace sinks are supported on this
device:
- Arm®
CoreSight™ TPIU: TPIU supports export of trace off-chip via LVCMOS
device pins (See 1.3.3.3) for capture by an external receiver.
- TI Trace Buffer Router (TBR) with 64KB of storage: the TBR can function as a
trace buffer or as a system bridge. As a trace buffer, the TBR can be setup
to capture trace data until the internal buffer fills or it can operate as a
circular buffer that will capture continuously. When configured as a system
bridge the TBR’s storage becomes an elastic buffer that supports the
concurrent queueing and dequeuing of trace traffic. The system bridge mode
supports interrupt and event notification capabilities that support
integration with device level CPUs and/or DMAs to support a variety of use
cases, including, for e.g., relocation of trace data to DDR and off-chip
export over USB.