6886 - Can user use FT2232HQ CHANNEL B JTAG CONFIGUARATION for configuration purpose?

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• 2009 - MachXO:Which IBIS models should I use for the MachXO JTAG signal pins?

  Solution: For the JTAG input pins, use the LVCMOS input models, input threshold voltage is referenced using the VCCAUX value, and select the model that has: TCK: bus keeper = NONE TDI: bus keeper = pull up TMS: bus keeper = pull up For the JTAG ...

• 2008 - MachXO2:Which IBIS models should I use for the MachXO2 JTAG signal pins?

  Solution: For the JTAG input pins, use the LVCMOS input models with bank 0 VCCIO and select the model that has: TCK: bus keeper = NONE TDI: bus keeper = pull up TMS: bus keeper = pull up For the JTAG output pin (TDO), use LVCMOS output type, bank 0 ...

• 6176 - MachXO2/MachXO3: Why there is no JTAG external pullups (TDI,TDO,TMS) recommendation in our documents such Hardware Checklist and Programming and Configuration user guide while external pull-ups were added in our Lattice demo and evaluation boards.

  MachXO2 and MachXO3L/LF TDI,TDO,TMS signals have internal pull-ups, so external pull-ups are not required. However, good engineering practice for a critical bus like JTAG is to augment the internal pull-ups with external if the bus will not always be ...

• 7748 - Why is there a mismatch between the hardware checklist and the evaluation board circuit design?

  Description: The customer has observed discrepancies between the design recommendations provided in the Hardware Checklist and the actual design implementation on the Lattice Evaluation Board. Reason: Hardware Checklists are developed after ...

• 3621 - LatticeECP3: Is the source code for the Helion Ionos Configuration GUI (ICG) tool available for use with HDR-60 kit?

  Lattice Semiconductor neither has access nor permission to distribute the source code for the Helions ICG tool. The Graphical User Interface (GUI) source is not required for development on HDR-60. By signing a evaluation license agreement Lattice ...