SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The Real-time Media Independent Interface (MII_G_RT) provides a programmable I/O interface for the PRUs to access and control up to two MII ports. The MII_G_RT module can also be configured to push and pull data independent of the PRU cores.
In order to guarantee the MII_G_RT I/O timing values published in the device data sheet, the PRU_ICSSG ICSSGn_CORE_CLK (where n = 0 or 1) core clock must be configured for 200 MHz, 225 MHz or 250 MHz and the TX_CLK_DELAYn (where n = 0 or 1) bit field in the MII_RT_TXCFG0/1 register must be set to 0h (default value).