SPRUIM6A October 2018 – November 2020
The following modifications are needed for PHY1 (U9) to convert it for use with the MII interface using the default pinmuxing.
TX lane steering modification – The TX lane is steered with a block of shared pad resistors. The resistors are installed in one pattern for RGMII and the opposing pattern for MII. Remove all five resistors from the steering block and replace them in the pattern shown in Figure 7-11.