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Microchip FPGA: Can LVDS18G be selected in TRIBUFF_DIFF?

Libero SoC PolarFire

LVDS18G cannot be selected with TRIBUFF_DIFF.

Please also refer to section "7.2.2.2. LVDS in GPIO Banks with VDDI = 1.8V" in the "PolarFire Family I/O User Guide".
Quote: "LVDS18G IOSTD is supported only for input and output I/Os (TRIBUF and INOUT is not supported)."
https://www.microchip.com/en-us/products/fpgas-and-plds/fpgas/polarfire-fpgas#Documentation

Example of I/O Editor dropdown display when using TRIBUFF_DIFF:

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