It can be useful to analyze a design based on connectivity. Run Show Connectivity to review the placement of all logic driven by an input, a block RAM, or a bank of DSPs. Show Connectivity begins with a selection of cells or nets, and expands the selection by adding connected cells or nets.
Tip: Use this technique to build up and see cones of logic inside the design.
The following figure shows a block RAM driving logic inside the device including OBUFs. A synthesis pragma stops synthesis from placing the output flop in the block RAM during memory inferencing.
Figure 1. Show Connectivity
