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The Hierarchy input block is used to create signal inputs into a Schematic Hierarchy Tab. Hierarchy Boards are helpful for large schematic designs and for organizing design components.
To create a Hierarchy Input:
Select a hierarchy board tab at the bottom of the Schematic window.
Drag a Hierarchy Input block into the schematic.
This will create a Hierarchy Input block in the schematic and a corresponding input pin on the Hierarchy Board block.
Note: To see determine which Hierarchy input block belongs to a Hierarchy board input pin, hover the mouse pointer above the Hierarchy board pin and the input block's name will be displayed in the tool-tip (as in the image above).
See the Hierarchy Board System Example for a sample hierarchy board design.