Ethernet Module

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EM500 BASIC-programmable Ethernet Module

EM500 BASIC-programmable Ethernet Module

The EM500 is a miniature stand-alone BASIC-programmable embedded module, designed to be used in combination with a standard LED/magnetics RJ45 jack. The combined footprint of the EM500 and a standard jack is only 28.5×18.5mm.

The module’s hardware mix, which includes 10/100BaseT Ethernet, a serial port, and 8 I/O lines, has been carefully tailored to address the basic needs of lightweight network-enabled control devices.

Compact dimensions, space-saving “vertical slice” mechanical design, low power consumption, and innovative dual-function LED control lines make the module an excellent fit for miniature, cost-sensitive designs.

In the near future, the EM500 will also support Wi-Fi communications (using the GA1000 add-on board), as well as external LCD, keypad, and flash disk (via an SPI flash IC).

The EM500 can be ordered standalone or in combination with an industry-standard RJ45 jack and/or all discrete components required to complete the circuit.

  • Based on a second-generation ASIC (T2000).
  • 10/100BaseT auto-MDIX Ethernet port (no magnetics).
  • One serial port (CMOS-level):

                  Baudrates of up to 460800bps;

                  None/even/odd/mark/space parity modes;

                 7/8 bits/character modes;

                 Full-duplex mode with optional flow control;

                 Half-duplex mode with direction control;

                 Encoding and decoding of Wiegand and clock/data streams.

  • 512KB flash memory for firmware and application.
  • 200 bytes of EEPROM space for data storage.
  • 8 general-purpose I/O lines (including 2 interrupt lines).
  • Control lines for two external dual-function status LEDs.
  • Additional control line for a dedicated Ethernet link LED.
  • External reset source required.
  • Power: 260mA @ 3.3V (100BaseT mode).
  • "Vertical slice" construction; dimensions: 18.5x16.0x6.5mm.
  • Firmware is upgradeable through the serial port or network (including "cold upgrade" firmware uploads through the network).


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