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Dual Ethernet and Fiber with Stm32 MPU?

Zaim
Prodigy 90 points
Other Parts Discussed in Thread: DP83849I

Hi dear all,
I'm looking for dual ethernet examples to implement with my stm32mp157d MPU , but I couldn't find anything on the internet.
I've seen that there is no STM32 with dual ethernet interface but i want to add dual ethernet and fiber ports to my stm32mp157d but i can not find any references .
So I look among the 3-port or 4 ports switches like (DP83849I,LAN9313,KSZ8863,KSZ8765 ….. etc) but unfortunately I cannot find any reference design by ST. Also, I cannot find any switch chip available in the market due to the long delays.Maybe I could go with some serial ethernet module using SPI or UART ?
Speed isn't a requirement in my application, of course it would have been better to directly implement the TCP stack on the MCU using the ST libs, to have access to the code.
Any ideas/examples links about how I could implement two ethernet ports(RJ45)(10BASE-T and 100BASE-TX support) and 2 fiber ethernet (100BASE-FX support via external fiber transceiver) ?

Thanks