SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
To advance the next data byte seen by R31, the PRU must pop the data from the RX L1 FIFO. Likewise, the PRU can push the data from R30 to the TX L1 FIFO. These operations are illustrated in Figure 7-74.
Figure 7-74 Reading and Writing FIFO Data