ETRA SBC/Interfaces and Connectors/Ethernet

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Issue Date Notes
2021/01/14 First Release

Ethernet interface[edit | edit source]

Description[edit | edit source]

The Ethernet interface is available on the Evaluation Kit at the connector J5.

J5 is a standard RJ45 connector connected to the SOM integrated ethernet controller and PHY.

J6 and J7 connectors are pin-to-pin compatible mounting options for the same interface.

Ethernet connector

Signals[edit | edit source]

The following table describes the interface signals on J18 SOM connector:

Pin# SOM Pin# Pin name Pin function Pin Notes
3 J18.19 ETH_TX_P Transmit data +
5 J18.21 ETH_TX_M Transmit data -
6 J18.23 ETH_RX_P Receive data +
8 J18.25 ETH_RX_M Receive data -
2,11 J18.13 ETH1_LED Eth link or activity led

Device mapping[edit | edit source]

This network interface is mapped at eth0 device in Linux.

Device usage[edit | edit source]

The peripheral is used the standard kernel interface and network protocol stack.