ORCA SOM/ORCA Evaluation Kit/Interfaces and Connectors/Ethernet

History
Version	Issue Date	Notes
1.0.0	Sep 2021	First release

Ethernet interfaces

The Evaluation Kit features two Gigabit Ethernet interfaces:

• ETH0 on J10 (labelled as Ethernet 1)
  • this interface also features the TSN functionality
• ETH1 on J38 (labelled as Ethernet 2)

Description

The Ethernet interfaces are available on the Evaluation Kit at the connectors J10 and J38. Primary interface is on J10.

J10 and J38 are a RJ45 shielded connectors with dual led. J10 is connected to the SoM Ethernet PHY, J38 is connected to the Carrier Ethernet PHY

[[File:{Template:Nome-som-EVB-Ethernet-connector.png|thumb|center|500px|Ethernet connector]]

Signals

The following table describes the interfaces signals:

• J10

Pin#	Pin name	Pin Notes
1	ETH0_TXRX1_P
2	ETH0_TXRX1_N
3	ETH0_TXRX2_P
4	ETH0_TXRX3_P
5	ETH0_TXRX3_N
6	ETH0_TXRX2_N
7	ETH0_TXRX4_P
8	ETH0_TXRX4_N
9	ETH0_LED_ACT	ETH0 has active low signals
11	ETH0_LED_LINK	ETH0 has active low signals

• J38

Pin#	Pin name	Pin Notes
1	ETH1_TXRX1_P
2	ETH1_TXRX1_N
3	ETH1_TXRX2_P
4	ETH1_TXRX3_P
5	ETH1_TXRX3_N
6	ETH1_TXRX2_N
7	ETH1_TXRX4_P
8	ETH1_TXRX4_N
10	ETH1_LED_ACT	ETH1 has active high signals
12	ETH1_LED_LINK	ETH1 has active high signals

Device mapping

The network interfaces mapped as follows:

• J10 is eth0 device in Linux.
• J38 is eth1 device in Linux.

Device usage

The peripherals use the standard kernel interface and network protocol stack.

---