Debug and trace
The debug and trace system is a flexible and powerful mechanism for non-intrusive debugging.
The main features of the debug and trace system are the following:
- Access port connection for Arm®
Cortex®-M33
- Eight breakpoints
- Four watchpoint comparators
- Instrumentation trace macrocell (ITM)
- Embedded trace macrocell (ETM)
- Access protection through APPROTECT, SECUREAPPROTECT, and ERASEPROTECT
- Serial wire debug (SWD) interface, protocol version 2 with multidrop support
Control-access port (CTRL-AP) that enables device control when other debug access ports (DAP) have been disabled by the access port protection
- Trace port interface unit (TPIU)
- 8 MHz maximum trace speed (GPIO limited)
- 4-bit parallel trace of ITM and ETM trace data
- Serial wire output (SWO) trace of ITM data
