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TM4C1294NCPDT: TM4C1294 - Ethernet ESD protection diodes

Part Number: TM4C1294NCPDT

Hi,

In a PCB of our design we use TM4C1294 microcontroller and the Ethernet socket with an integrated transformer. It seems like this socket (Hanrun HR91105) doesn't have ESD protection diodes, as I didn't find it mentioned at any point in its datasheet. I have following questions:

1. Are ESD diodes obligatory in this case, that is if the Ethernet socket has a built-in transformer?

2. Can ESD diodes be placed directly next to TM4C pins (Ethernet port -> transformer -> ESD -> PHY TM4C1294 pins)?

In our case we can't separate an Ethernet socket and a transformer, (as it simply won't fit on a PCB), as on a TM4C1294 Launchpad. In advance, thank you for your support.

Regards

Dariusz Adamczyk