SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The PRU can be used to feed data into the TX L1 FIFO using the R30 and R31 registers, shown in Figure 6-254. The PRU has the option to write up two or four bytes of R30 and then pushes the data into the TX L1 FIFO by writing to the R31 command interface.