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Ethernet Technology

Ethernet uses a bus or star topology and supports data transfer rates of 10 Mbps (10Base-T), 100 Mbps (10/100Base-T) or 1,000 Mbps (1 Gbps). The Ethernet specification serves as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands and is one of the most widely implemented LAN standards. For embedded applications, Ethernet is typically used for remote monitor or control of data and the 10 and 100 Mbps transfer rates are used.

A typical Ethernet system is shown in Figures 1 and 2. The Ethernet controller may be a separate, standalone device, or it may be integrated with the host microcontroller (MCU). The Ethernet controller transmits and receives data from the Ethernet cable and manages Ethernet protocol. Ethernet controllers are often separated into two pieces, the Media Access Control (MAC) and the Physical Layer (PHY).

Figure 1: Standalone Ethernet Controller

Figure1

Figure 2: Integrated Ethernet System

Figure2

Media Access Control (MAC)

The MAC provides addressing and channel access control mechanisms for several terminals or network nodes to communicate within a multi-point network, typical a local area network (LAN). As part of the channel access control, it provides multiple access protocol that allows for an automatic retransmission when a collision occurs. It also emulates a full-duplex logical communication channel in a multi-point network. This channel may provide unicast, multicast or broadcast communication service.

Physical Layer (PHY)

The PHY provides the means of transmitting raw bits over a physical data link (e.g. twisted pair cable). The PHY module interfaces to a signal transformer, which in turn connects to the RJ-45 Ethernet socket. The host controller receives data from the Ethernet controller and applies the necessary protocol rules. The host controller also formats outgoing data and places it into the Ethernet controller transmit buffer.

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Part Number: EVB-LAN7500
The EVB-LAN7500 is full featured Evaluation Board EVB that utilizes the LAN7500 to provide a fully functional, bus-powered USB to Ethernet interface. The EVB-LAN7500 provides a fully integrated Ethernet port and USB port via the onboard RJ45 and USB Type A connectors. The onboard 4K EEPROM is used to load the EVB-LAN7500 USB configuration parameters and MAC address. LAN7500 software drivers are ...



Part Number: EVB-LAN7500-LC

LAN7500 High-Speed USB 2.0 to 10/100/1000 Ethernet Customer Eval Board - Dongle

The EVB-LAN7500-LC is an Evaluation Board EVB that utilizes the LAN7500 to provide a fully functional, bus-powered USB to Ethernet interface. The EVB-LAN7500-LC provides a fully integrated Ethernet port and USB port via the onboard RJ45 and USB Type A connectors. The onboard 4K EEPROM is used to load the EVB-LAN7500-LCs USB configuration parameters and MAC address. LAN7500 software drivers are a...



Part Number: EVB8710

LAN8710A High-Speed 10/100 Ethernet Transceiver Customer Evaluation Board

The EVB8710 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8710 Ethernet PHY via a standard 40-pin MII connector. The LAN8710 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.



Part Number: EVB8720

LAN8720A High-Speed 10/100 Ethernet Transceiver Customer Evaluation Board

The EVB8720 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8720 Ethernet PHY via a standard 40-pin MII connector adapted for use in RMII configurations. The LAN8720 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.



Part Number: EVB8740

LAN8740/LAN8741 High-Speed 10/100 EEE enabled Ethernet Transceiver Customer Eval

The EVB8740 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8740 Ethernet PHY via a standard 40-pin MII connector and supports Energy Efficient Ethernet IEE802.3az along with Wake-on-LAN and Cable Diagnostics. The LAN8740 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.



Part Number: EVB8742

LAN8742 High-Speed 10/100 Ethernet Transceiver Customer Eval Board (Wake-on-LAN)

The EVB8742 is a PHY Evaluation Board EVB that interfaces a MAC controller to the LAN8742 Ethernet PHY via a standard 40-pin MII connector adapted for usin RMII configurations and supports Wake-on-LAN and Cable Diagnostics. The LAN8740 is connected to an RJ-45/Integrated Magnetics Ethernet Jack for 10/100 connectivity.



Part Number: EVB-LAN9220-MINI

LAN9220 High-Performance 16-bit Small Formfactor 10/100 Ethernet Controller Eval

The LAN9220 is a full-featured, single-chip 10/100 Ethernet controller designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9220 includes an integrated Ethernet MAC and PHY with an SRAM-like slave interface. The simple, yet highly functional host bus interface provides a glue-less connection to most common 16-bit ...



Part Number: EVB-LAN9221-MINI

LAN9221 High-Performance 16-bit 10/100 Ethernet Controller Customer Evaluation Board

The LAN9221 is a full-featured, High-Performance, single-chip 10/100 Ethernet controller designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9221 includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface. The simple, yet highly functional host bus interface provides a glue-less con...



Part Number: EVB-LAN9313M

LAN9313 3-Port 10/100 Ethernet Switch Eval Board with MII MAC Interface

The LAN9313M is a full-featured, three-port 10/100 managed Ethernet switch designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9313M combines all the functions of a 10/100 Ethernet switch system, including the Switch Fabric, packet buffers, Buffer Manager, MACs, PHY transceivers, and serial management. The 9313M ...



Part Number: EVB-LAN9313P

LAN9313 3-Port 10/100 Ethernet Switch Eval Board with MII PHY Interface

The LAN9313P is a full-featured, three-port 10/100 managed Ethernet switch designed for embedded applications where performance, flexibility, ease of integration and system cost control are required. The LAN9313M combines all the functions of a 10/100 Ethernet switch system, including the Switch Fabric, packet buffers, Buffer Manager, MACs, PHY transceivers, and serial management. The 9313M ...



Part Number: EVB-LAN9500A-MII

LAN9500A High-Speed USB 2.0 to 10/100 Ethernet Customer Eval Board MII Interface

The EVB-LAN9500A-MII is an Evaluation Board EVB that utilizes the LAN9500A to provide a fully functional, USB to Ethernet interface. The EVB-LAN9500A-MII provides fully integrated Ethernet and USB ports via the onboard RJ45 and USB Type B connectors. The EVB-LAN9500A-MII can be configured for bus- or self-powered operation and supports internal and external PHY modes. An external PHY may be ...



Part Number: EVB-LAN9500A-LC

LAN9500A High-Speed USB 2.0 to 10/100 Ethernet Customer Evaluation Board Dongle

The EVB-LAN9500A-LC is an Evaluation Board EVB that utilizes the LAN9500A to provide a fully functional, bus-powered USB to Ethernet interface. The EVB-LAN9500A-LC provides fully integrated Ethernet and USB ports via the onboard RJ45 and USB Type A connectors. The onboard 256x8 EEPROM is used to load the EVB-LAN9500A-LCs USB configuration parameters and MAC address. LAN9500A software drivers ...



Part Number: EVB9512

LAN9512 High-Speed USB 2.0 to 10/100 Ethernet Hub Customer Evaluation Board

The EVB9512 is an Evaluation Board EVB that utilizes the LAN9512 to provide a two port USB 2.0 hub with an integrated 10/100 Ethernet controller. The EVB9512 provides USB connectivity via one type B upstream USB connector and two type A downstream USB connectors. An RJ-45 integrated magnetics Ethernet jack with link/activity LEDs provides 10/100 Ethernet connectivity. The EVB9512 supports both ...



Part Number: EVB9514

LAN9513/LAN9514 High-Speed USB 2.0 to 10/100 Ethernet Hub Customer Eval Board

The EVB9514 is an Evaluation Board EVB that utilizes the LAN9514 to provide a four port USB 2.0 hub with an integrated 10/100 Ethernet controller. The EVB9514 provides USB connectivity via one type B upstream USB connector and four type A downstream USB connectors. An RJ-45 integrated magnetics Ethernet jack with link/activity LEDs provides 10/100 Ethernet connectivity. The EVB9514 supports ...



Part Number: EVB-LAN9730-MII

LAN9730 High-Speed USB 2.0 HSIC to 10/100 Ethernet Customer Evaluation Board

The EVB-LAN9730-MII is an Evaluation Board EVB that utilizes the LAN9730 to provide a fully functional, self-powered HSIC to Ethernet interface. The EVB-LAN9730-MII provides fully integrated Ethernet and HSIC interfaces via the onboard RJ45 and HSIC Data/Strobe coaxial connectors. The EVB-LAN9730-MII supports internal and external PHY modes. An external PHY may be connected via the onboard ...

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