Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B510F2048GL120/ETM/ETMPIDR1#0x0
Peripheral ID1 Register
Part Number
JEP106 Identity Code
https://github.com/cmsis-svd/cmsis-svd-data