ORCA SBC/Interfaces and Connectors/Ethernet

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History
Version Issue Date Notes
1.0.0 Dec 2021 First release


Ethernet interfaces[edit | edit source]

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[edit | edit source]

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


Ethernet 1 connector
Ethernet 2 connector

Signals[edit | edit source]

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[edit | edit source]

The network interfaces mapped as follows:

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

Device usage[edit | edit source]

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