SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
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 6-258 shows a simple diagram of PRU receive multiplexer.
There 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_ICSSG programmable registers (MII_RT_RXCFG0/1[3] RX_MUX_SELn, where n = 0 or 1).