VCCINT_VCU is a 0.90V rail that provides power to the video codec unit (VCU) within Zynq UltraScale+ MPSoC EV devices. VCCINT_VCU must be powered as a standalone power rail and cannot be combined with any other power rails.
If the VCU is not going to be used, the VCCINT_VCU pins can be grounded to reduce leakage current.