5224 - CrossLink: How to use SPI and CDONE pins for general-purpose I/O (GPIO)?

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• Lattice Radiant: How do I use the RGB pins on iCE40UltraPlus as GPIO?

  The SB_IO_OD primitive is only available for the iCECube2 SW, you will have to use BB_OD as this is the equivalent primitive for the opendrain buffer in Radiant. Note that for Radiant, BB_OD is automatically mapped in the netlist/design whenever you ...

• 6694 - Nexus: Why the JTAG_PORT/SLAVE_SPI_PORT pins are not usable as GPIO in USERMODE in Nexus Device Family?

  This is a known issue for Nexus Devices and will be fixed as soon as possible for the meantime to use JTAG_PORT/SLAVE_SPI_PORT ports in user mode as GPIO please enable SLAVE_I2C/I3C_PORT to proceed; the downside we are preserving the IOs as SDA and ...

• 5569 - iCEcube2: How to use RGB pins of an ICE40 device as an input?

  Description: In order to use the iCE40 open drain (RGB , IR) pins for general purpose functionality, you need to instantiate the SB_IO_OD primitive in the design. The details for the SB_IO_OD primitive can be found from the "iCE Technology library" ...

• Lattice Diamond: How to change I/O attributes on JTAG pins?

  Set JTAG_PORT to DISABLE in the software so that the I/O becomes GPIO. The user could then change the I/O attributes on that shared pin. The JTAGEN pin will not control the IO standard and drive strength setting of the IO. If the JTAG is not ...