Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32BG22C224F512GM32/IADC0_S/SINGLEFIFODATA#0x0
Read the oldest valid data from the single FIFO and pop the FIFO
Single FIFO Read Data
https://github.com/cmsis-svd/cmsis-svd-data