Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32ZG13P/EFR32ZG13P231F512GM64/ETM/ETMCIDR3#0x0
Component ID3 Register
CoreSight Preamble
https://github.com/cmsis-svd/cmsis-svd-data