SPRSPC3 February 2026 AM13E23019
ADVANCE INFORMATION
The AM13E230x Debug Subsystem integrates the JTAG interface and accesses the Cortex®-M33 CPU debug registers through the Debug Access Port (DAP). The Cortex®-M33 DAP can be configured as a JTAG Debug Port (JTAG-DP), Serial Wire Debug Port (SW-DP), or Serial Wire/JTAG Debug Port (SWJ-DP).
The Micro Trace Buffer (MTB) on AM13E230x MCUs provides basic execution trace capability to the CPU core. When enabled, the MTB records changes in program flow, reported by the Cortex®-M33 processor over the execution trace interface. This information is stored as trace packets in the MTB memory. An external debugger can extract the trace information using the DAP. The debugger can then reconstruct the program flow from this information.