SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Because the STM function of the SCTM is an optional feature, the NUMSTM bit in the SCTM_CTCCNTL register is read to determine if any counters are available for STM export:
The STM capability of the SCTM is enabled by setting the ENBL bit in the SCTM_CTSTMCNTL register to 1.