37 lines
1.5 KiB
Markdown
37 lines
1.5 KiB
Markdown
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Helios64 has 2x BASE-T Ethernet interfaces :
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* LAN 1 : 1000BASE-T (1 Gbit/s)
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* LAN 2 : 2.5GBASE-T (2.5 Gbit/s)
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LAN 1 is the native Gigabit Ethernet interface from SoC RK3399. The interfaces is exposed through the Ethernet transceiver RTL8211F connected to RK3399 via RGMII.
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LAN2 is the Multigigabit (2.5Gb) Ethernet interface provided through Realtek RTL8156 controller which is an USB3.0 to LAN bridge. The controller is connected to RK3399 via [VL815 USB 3.0 Hub](/helios64/usb/#usb-on-helios64).
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## Features
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Both Ethernet interfaces supports the following features :
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* Transfer Rate Auto-Negotiation
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* Full-duplex and Half-duplex operation
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* IEEE 802.3az Energy Efficient Ethernet
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* IEEE 802.1Q VLAN tagging
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* Wake-on-LAN (WOL)
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* Crossover Detection & Auto-Correction
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* Automatic Polarity Correction
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## About MAC address
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Each Helios64 unit comes with a unique MAC address for each Ethernet interfaces. These MAC addresses, allocated and programmed during manufacturing process, comes from a MAC Address Block assigned to Kobol Innovations Pte. Ltd. by the IEEE Registration Authority.
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The following MAC Address Block Medium (MA-M) has been allocated to us :
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| 28-bit Base Value | EUI-48 Address Block |
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|-------------------|----------------------|
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| 64-62-66-D | 0-00-00 through F-FF-FF |
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