DP83867ERGZ-R-EVM

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Evaluation and demonstration boards and kits have been part of the engineering toolkit for years. Examples range from simple switch-mode power supplies used in embedded MCU applications to higher power applications. As such, manufacturers of evaluation and development boards have begun to develop highly specialized, application-specific boards to meet the needs of a variety of different scenarios. The Texas Instruments DP83867ERGZ-R-EVM is just one such example.

The DP83867ERGZ-R-EVM is an Evaluation Module (EVM) specifically designed for use in network applications that require an interface between the Ethernet and a communications processor or microcontroller. The board includes all the necessary components to provide an interface between Ethernet networks and a system, including Ethernet Magnetics, RJ45 connectors, two LEDs, 5V DC Input jack and power jack. In addition, the board is equipped with a variety of connectors for connecting to devices such as a microcontroller, memory, USB or serial ports.

The DP83867ERGZ-R-EVM board works in conjunction with the on-board Texas Instruments DP83867 magnetics-less 10/100 Ethernet Transceiver. The on-board transceiver is connected to the external Ethernet through a RJ45 port and two LED\'s gives an indication of the link connection status with the Ethernet.

It has a comprehensive evaluation system to aid the user in determining the correct settings for particular applications. The settings for the DP83867 integrated into the module are adjustable via the software Control Panel provided. This panel can be accessed via the on-board USB port which also supports device-programming of the EPDK-79 module. Additionally, the on-board, programmable RTC (Real Time Clock) offers the possibility of using the DP83867 as a system timer in applications.

The onboard USB connector provides a physical layer interface between an external host and the device. This allows the user to access the device Configuration Panel for programming the device configuration registers. This panel can also be used to program the external memory connected to the DP83867ERGZ-R-EVM.

The DP83867ERGZ-R-EVM is designed for easy interfacing with external power sources. It includes a 5VDC input jack as well as power connector for powering the device. The board includes a voltage regulator that provides a 5VDC supply for the module and its peripherals. This voltage regulator has an input range of 4.6V-7V and can provide up to 400mA of current.

The DP83867ERGZ-R-EVM has an extensive range of peripherals including an on-board crystal oscillator, LEDs, and a reset switch. These onboard peripherals allow the user to quickly test and develop Ethernet applications without the need for an external controller.

The Ethernet interface provided by the DP83867ERGZ-R-EVM supports 10Base-T and 100Base-T, making it suitable for a wide range of applications from voice communications to data transfers. The DP83867 device also includes EEE (Energy Efficient Ethernet) functionality, which helps reduce energy consumption when transmitting and receiving data across 10/100 Ethernet networks. The device also supports full-duplex mode and half-duplex mode to accommodate different types of applications.

In summary, the DP83867ERGZ-R-EVM is a powerful, versatile, and user-friendly evaluation and development board designed to help engineers create network applications quickly and easily. The board\'s comprehensive system, ease of use, and numerous peripherals make it an ideal choice for quickly developing Ethernet applications.

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