EM1202 BASIC/C-Programmable Ethernet Module

NOT RECOMMENDED FOR NEW DESIGNS

Introduction

While occupying a miniscule 19x17mm on your PCB, the EM1202 Tibbo BASIC/C-programmable embedded module retains most features of the much larger EM1000. These include a 100Base/T Ethernet port, four serial ports, onboard flash, EEPROM, and 24 I/O lines that can be used to interface with an 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 is fully supported by Tibbo IDE (TIDE) and a dedicated EM1202 platform that covers all hardware facilities of the module. For convenient testing and evaluation, Tibbo offers the EM1202EV evaluation board. The EM1202 can also support Wi-Fi communications (this requires the GA1000 add-on module).

Hardware Features

• 10/100BaseT auto-MDIX Ethernet port (standard Ethernet magnetics are NOT integrated into the module)
• Optional Wi-Fi interface (requires the GA1000)
• 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
• 512KB or 1,024KB flash memory for firmware, application, and data storage
• 2KB EEPROM for data storage.
• Up to 32 general-purpose I/O lines:
• Eight interrupt lines
• Serial port lines
• 24 lines that are combined into three 8-bit ports
• Square wave output (6Hz - 22.1184MHz), which can be used to control an external buzzer
• Supports an external LCD and keypad
• Four control lines for status LEDs:
• Two lines for green and red status LED control
• Two lines for Ethernet status LED control
• Software-controlled onboard PLL to select the clock frequency of the device:
• 11.0592MHz with PLL off
• 88.4736MHz with PLL on
• Reliable power-on/brown-out reset circuit:
• No additional external reset circuitry required
• Master reset input also provided
• Power: 230mA @ 3.3V (100BaseT mode, PLL on)
• Dimensions: 17.1x19.1x14.6mm
• Firmware and compiled Tibbo BASIC/C app can be updated through the serial port or Ethernet LAN
• Tibbo BASIC/C application can be debugged through the network (no additional debugging hardware is required)

Programming Features

The EM1202 runs Tibbo OS (TiOS). The following is a list of the features supported by its programming platform:

• Objects:
• beep — generates buzzer patterns (buzzer must be connected externally)
• button — monitors MD line
• fd — manages flash memory file system and direct sector access
• io — handles I/O lines, ports, and interrupts
• kp — scans keypads of matrix and "binary" types (keypad must be connected externally)
• lcd — controls graphical display panels (several types supported, LCD must be connected externally)
• net — controls the Ethernet port
• pat — "plays" patterns on up to five LED pairs (LEDs must be connected externally)
• ppp — provides access to the Internet over a serial modem (GPRS, POTS, etc.)
• pppoe — provides access to the Internet over an ADSL modem
• romfile — facilitates access to resource files (fixed data)
• ser — in charge of serial ports (UART, Wiegand, and clock/data modes)
• sock — socket communications (up to 16 UDP, TCP, and HTTP sessions)
• ssi  — implements up to four serial synchronous interface (SSI) channels, supports SPI, I²C, clock/data, etc.
• sys — in charge of general device functionality
• wln — handles the Wi-Fi interface (requires the GA1000)
• Variable Types: Byte, char, integer (word), short, dword, long, real, string, plus user-defined arrays and structures
• Function Groups: 27 string functions, eight date/time conversion functions, encryption/hash calculation functions, and more