hi, we are planning to use MIMXRT1189CVM8C for one of the applications where 3 MII interfaces are required.
I have chosen all 3 MII interfaces on TSN fabric and using iMX pin config tool MCUXpresso Config tool ver 25.6.
1. ETH2 and ETH3 for 2 PHYs, want to use shared MDIO/MDC for these 2 PHYs
2. ETH1 for another MII based PHY, here dedicated MDIO/MDC is preferred.
Now as per config tool, ETH2 and ETH3 both have MDIO/MDC signals but ETH0 and ETH1 don't.
First of all, can I share MDIO/MDC as mentioned in point 1 & 2.
Second, on ETH1, CRS and COL signals are getting omitted if I chose one MDIO/MDC pair to be used, now these signals are required if HALF duplex operation is needed.
Can you please help with correct interfacing scheme here.
Thanks
