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ETRA SOM/ETRA Hardware/Peripherals/Ethernet

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__FORCETOC__

==Peripheral Ethernet ==

The Ethernet peripheral enables the devices to transmit and receive data over Ethernet in compliance with the IEEE 802.3-2002 standard.

~~''TBD: sostituire le sezioni con le informazioni sull'uso della periferica''~~=== Description ===~~''Nell'esempio di seguito c'è la descrizione dell'interfaccia HDMI''~~The 10/100/1000-Mbit/s Ethernet interface available on ETRA SoM is based on STM32MP1 SoC.

~~=== Description ===~~The SoC is directly interfaced with an ETH PHY chip (MICROCHIP KSZ8091RNAIA) that has the following features:* Auto-Negotiation to Automatically Select the Highest Link-Up Speed (10/100 Mbps) and Duplex (Half/Full)* On-Chip Termination Resistors for the Differential Pairs* HP Auto MDI/MDI-X to Reliably Detect and Correct Straight-Through and Crossover Cable Connections* Energy Efficient Ethernet (EEE) support with Low-Power Idle (LPI) mode for 100BASE-TX and Transmit Amplitude Reduction with 10BASE-TE option * Wake-on-LAN (WoL) Support with Either Magic Packet, Link Status Change, or Robust Custom-Packet Detection

=== Important note for the external magnetic connection ===The Ethernet ~~interface available~~ peripheral requires an external insulator magnetic on ~~ETRA is based on xxxxx ''TBD:SOC name'' SoC~~the carrier board.

The ~~Ethernet port supports~~ two transformer center tap pins on the ~~following standards~~ PHY side should not be connected to any power supply source on the board; rather, the center tap pins should be separated from one another and ~~features:~~connected through separate 0.1 µF common-mode capacitors to ground. Separation is required because the common-mode voltage could be different between the four differential pairs, depending on the connected speed mode.

* High-Definition Multimedia Interface Specification, Version 1.4a * Support See section 11 (Magnetic connection and selection) on KSZ8091RN datasheet for ~~up to 1080p at 60Hz HDTV display resolutions and up to QXGA graphic display resolutions~~more details. * Support for 4k x 2k and 3D video formats * Support for up to 16-bit Deep Color modes

===Pin mapping===

U0016

a000298_approval, dave_user

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