SPRUJB6B November 2024 – May 2025 AM2612
For each incoming frame, the CRC is calculated by the MII_RT and compared against the CRC included in the frame. When the two values do not match, a CRC error is flagged. The ERROR_CRC indication is available in the register interface (PRU R31 Receive Interface) as well as in the FIFO interface (RX L2 Status Interface). It is also provided to the INTC which is integrated in the PRU-ICSS. Figure 7-77 shows the inputs and outputs of CRC error detection logic block.
Figure 7-77 CRC Error Detection