Several input and bidirectional primitives have an IBUFDISABLE port
that can disable the input buffer and force the O output of the internal logic to a
logic Low when the IBUFDISABLE signal is asserted High. The USE_IBUFDISABLE
attribute must be set to TRUE, the IBUFDISABLE port must be controlled, and the
SIM_DEVICE attributes (for example, VERSAL_PRIME and VERSAL_AI_CORE) appropriately
set for this primitive to have the expected behavior that is specific to the Versal
architecture. This feature can be used to reduce power at times when the I/O is
idle.
Important: The IBUFDISABLE feature can only be used on differential and
VREF based standards. Neither LVCMOS nor the
MIPI_DPHY LP input are impacted by IBUFDISABLE.