EM1202 BASIC-programmable Ethernet Module

While occupying miniscule 19x17mm on your PCB, the EM1202 BASIC-programmable embedded module retains most features of the much larger EM1000 device.

These include 100Base/T Ethernet, four serial ports, onboard flash, EEPROM, and 32 I/O lines that can be used to interface with external LCD, keypad, buzzer, and card readers.

Thanks to its miniature dimensions, the EM1202 can be conveniently used as a network front-end in automation, security, and data collection systems.

The EM1202 can also support Wi-Fi communications (this requires GA1000 add-on board).

Specifications:

• Based on a high-performance purpose-built 88-MHz ASIC (T1000).
• 10/100BaseT auto-MDIX Ethernet port (no magnetics).
• Optional Wi-Fi interface (requires GA1000 add-on module).
• Four high-speed serial ports (CMOS-level):
  • Baudrates of up to 921,600bps;
  • 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.
• Up to 1024KB flash memory for firmware, application, and data.
• 2KB EEPROM for data storage.
• Supports external LCD and keypad.
• Programmable square-wave output for external buzzer.
• Up to 32 general-purpose I/O lines (including 8 interrupt lines).
• Four control lines for status LEDs.
• Software-controlled onboard PLL.
• Reliable power-on/brown-out reset circuit.
• Power: 230mA @ 3.3V (100BaseT mode, PLL on).
• Dimensions: 17.1x19.1x14.6mm.
• Firmware is upgradeable through the serial port or network.

See also:
GA1000 Wi-Fi add-on module
EM1202EV BASIC-programmable Ethernet board

Platform objects:

• Sock — socket comms (up to 16 UDP, TCP, and HTTP sessions).
• Net — controls Ethernet port.
• Wln — handles Wi-Fi interface (requires GA1000 add-on module).
• Ser — up to 4 serial ports (UART, Wiegand, and clock/data modes).
• Ssi — up to 4 serial synchronous interface channels (for SPI, I2C...).
• Io — handles I/O lines, ports, and interrupts.
• Lcd — controls graphical display panels (several types supported).
• Kp — scans keypads of matrix and "binary" types.
• Fd — manages flash memory file system and direct sector access.
• Stor — provides access to the EEPROM.
• Romfile — facilitates access to resource files (fixed data).
• Pppoe — accesses the Internet over an ADSL modem.
• Ppp — accesses the Internet over a serial modem (GPRS, etc.).
• Pat — "plays" patterns on up to five LED pairs.
• Beep — generates buzzer patterns.
• Button — monitors MD line (setup button).
• Sys — in charge of general device functionality.

Function Groups: String functions (27 in total!), date/time conversion functions (8), encryption/hash calculation functions (AES128, RC4, MD5, SHA-1), and more.

Variable Types: Byte, char, integer (word), short, dword, long, real, string, plus user-defined arrays and structures.