6150 - iCE40 UltraPlus: What is the VCCIO bank of CRESETB and CDONE on ICE5LP2K-SG48?

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• 5390 - IceCube2 / iCE40 UltraPlus: Why are there only two I/O Bank options (top and bottom bank), on the iCEcube2 chip configuration dialog when there are three I/O Banks on the iCE40 Ultra/UltraPlus device?

  Solution: There are three I/O banks: one top bank (Bank 0) and two bottom banks (Bank 1_SPI and Bank 2). For the I/O bank voltages: TopBank is the voltage option for Bank 0. BottomBank is the voltage option for Bank 2. Voltage for Bank 1_SPI should ...

• 6172 - MachXO3: Can one bank VCCIO be removed without damaging the part?

  Yes, it is safe to remove the non-configuration VCCIO supply. Details: Bank 0 -> Configuration Bank( Stores the configuration Data ) Other Banks-> Non-Configuration Bank VCCIO0 (Bank 0) -> Configuration Bank Supply Voltage : A. The FPGA-TN-02055-2.5 ...

• 2118 - Lattice ECP3: Can I connect an external Low Voltage Differential Signal 2.5V (LVDS25) clock output to a Lattice ECP3 DDR3 bank which is a 1.5V VCCIO bank?

  Yes, the user can drive an external Low Voltage Differential Signal (LVDS) clock generator to an input pair of the LatticeECP3 1.5V VCCIO bank. Although the Lattice ECP3 LVDS25 is characterized in 2.5V and 3.3V, the user can safely use an external ...

• 1254 - How to define different VCCIO voltage in different IO bank for FPGA such as SC/ECP2/ECP2M/ECP3 devices? Why is it necessary?

  When running ispLEVER software tool, edit the project preference file *.lpf by following the example below to add these preference to set the BANK voltages to match the circuit board design and how the device is connected on board: BANK 0 VCCIO 3.3 ...

• 2347 - MachXO2: Why does the Lattice software picks VCCIO bank voltages smaller than 3.3V when all my design IO buffers are of the 3.3V type?

  Description:The situation above can occur when you set your IO buffer HYSTERESIS attribute to NA. You can normally set your IO buffer HYSTERISIS attribute using one of the three methods shown below: ispLEVER software: Start the Design Planner target ...