Placing I/O Ports in a Defined Area - 2024.1 English

Vivado Design Suite User Guide: I/O and Clock Planning (UG899)

Document ID
UG899
Release Date
2024-05-30
Version
2024.1 English
To place I/O Ports into a defined area:
  1. In the I/O Ports window, select individual I/O ports, groups of I/O ports, or interfaces.
  2. Use one of the following commands:
    • In the I/O Ports window, right-click, and select Place I/O Ports in Area.
    • In either the Package window or the Device window, right-click, and select Place I/O Ports in Area.

      The cursor turns into a cross symbol, which indicates that you can define a rectangle for port placement.

  3. In either the Package window or the Device window, draw a rectangle to define the assignment area.

    If you select more I/O Ports than fit in the defined area, the command is continued. The cursor continues to display as a cross to draw another area to place the remaining I/O ports until all of the I/O ports are placed, or you press Esc.

    Tip: The Vivado IDE assigns ports in the order that they appear in the I/O Ports window. You can adjust the assignment order by applying sorting techniques in the I/O Ports window prior to assignment.

    The direction in which you draw the rectangle dictates the I/O ports assignment order. I/O ports are assigned from the inside pin of the first rectangle coordinate selected. Creative definition of the area rectangles can provide useful pinout configurations from a PCB routing perspective.

    The following figure shows I/O ports placed in an area.