Schematic Diagrams present the internal structure (ports, sub-instances, combinational and sequential logic and connections) :

Flow Diagrams present a high level view of internal connectivity. Multiple connections from one instance to another are collapsed in a single directional edge:

Block Diagrams present the ports:

Finite-State Machine Diagrams present states and transitions by analyzing all the assignments and conditions in which a state variable is used:

All the diagrams can be zoomed and panned.

Schematic and Flow diagrams can be opened in full screen for better inspection.

You can copy to clipboard an instantiation of the current module from the Block Diagram.

Click on a block to jump to the chapter where it is documented.