Page History

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• Xmod form-factor
  • size: 20 x 25 mm
  • M3 mounting hole
• FT2232H
  • USB2.0 port High Speed (480 Mbps) and Full Speed (12 Mbps) compatible
  • Entire USB protocol handled on the chip
  • USB2.0 to JTAG, SPI and I²C conversion provided by the IC's Multi-Protocol Synchronous Serial Engine (MPSSE)
  • USB2.0 to UART conversion
  • Channel B UART RX/TX LED's
  • Mini-USB B connector (more rigid then micro-USB)
  • 93C56 EEPROM
• Lattice XO2-256 CPLD
  • on board programmable using Lattice tools
  • 8 universal I/O pins
  • VCCIO either 3.3V or user supplied (1.8 to 3.3V)
  • RED user LED
  • 12 MHz clock from on-board Oscillator
• Variable power supply of the XMOD adapter board
  
  • by Mini USB2.0 connector
  • by base-board through pin header J2
  LDO DCDC for optional USB power
• GREEN Power-on LED
• User button
• 4 position DIP switch
  • Choose CPLD program mode
  • FTDI EEPROM disable (not implemented in PCB REV 1)
  • Use VIO same as VCC
  • Use VCC from USB

Block Diagram

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Figure 1: TE0790-02 block diagram.

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The adapter on-board's peripherals are powered with 3.3V as supply voltage. If 3.3V and VIO is supplied only by the on-board LDO DCDC converter U3 (switches S2-3 and S2-4 ON), the I/O-pins of header J2 deliver max. XMOD adapter board has max. output current of ~100mA.
If module is powered from base then S2-4 (and most likely S2-3 (VIO) too) must be OFF.

Following diagram shows how the settings of the DIP-switches S2-3 and S2-4 determines the configuration of the on-board voltages:

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Figure 4: TE0790 on-board voltages configuration

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v.27

v.26

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