https://docs.amd.com/r/en-US/pg391-rfsoc-dfe-prach/RACH-Channel-TLAST
RACH Channel TLAST - RACH Channel TLAST - 2.0 English - PG391
PRACH captures are scheduled to begin and end throughout the radio frame. The end of a scheduled PRACH capture is indicated by asserting TLAST on the...
rachchannelenglish