SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
A multiplexer is provided to allow selecting either of the two MII interfaces (RX_MII0 or RX_MII1) for the receive data that is sent to PRU. Figure 7-88 shows a simple diagram of PRU receive multiplexer.
Figure 7-88 MII Receive MultiplexerThere are two receive multiplexer instances to enable selection of RX MII path for each PRU. The select lines of the RX multiplexers are driven from the PRU-ICSS programmable registers (MII_RT_RXCFG0/1[3] RX_MUX_SELn, where n = 0 or 1).