Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFR32ZG13P/EFR32ZG13P531F512GM32/LDMA/SWREQ#0x0
DMA Channel Software Transfer Request Register
Software Transfer Requests
https://github.com/cmsis-svd/cmsis-svd-data