Protocol based connection is like using cable

Protocol based connections behave much like cables. Each contains a collection of functionally related wires. When you connect them to an IP as if you are connecting a cable to a connector. All wires in the cable get connected to the right signals at the same time, no need to connect them individually. Moreover, you cannot take one type of cable and connect it to another type of connector. A male side can only connect to a corresponding female side.

This prevents common errors that can get unnoticed till a simulation. Sometimes these errors can hide in the RTL undetected for a long time. Sometimes they will hide just long enough to hurt your end product. No more hiding with protocol based connection paradigm. You can build quality RTL ground up.