23.3.6 Module Setup

The MVIO can be initialized by following these steps:

  1. Configure the module to operate with the VDDIOx internal voltage monitors enabled or disabled by programming the IOMON bit accordingly. For more information about which setting to select, refer to the Power Mode Selection section.
  2. Optional: Enable the VDDIOx Low-Voltage Detection by setting the LVDEN bit and configuring the LVD bits.
  3. Optional: Enable any of the available interrupts by setting the respective interrupt enable bits in the PIEx register. Refer to the Interrupts and DMA Triggers section for more information about the available MVIO interrupts and how they can be enabled.
  4. Wait until the VDDIOx Ready Status (RDY) bit has been set to ensure that the VDDIOx voltage is within the acceptable range of operation.
  5. Configure and use the PORT pins powered by VDDIOx as usual.