Analog Design and Simulation Using OrCAD Capture and PSpice, 2nd Edition

Chapter 20

Creating Hierarchical Designs

Abstract

Capture designs can either be flat, in which signals are connected across pages in the design, or hierarchical, in which the design is partitioned into blocks and signals transverse up and down the hierarchy. Flat designs are represented in the Project Manager as having a single schematic folder with a number of associated pages, whereas hierarchical designs will have more than one schematic folder. Each schematic folder in the hierarchy will be represented by a hierarchical block in a schematic. Different hierarchical ports are available, which represent the type of port and direction of data flow. Hierarchical blocks are normally used for top-down designs, where the block is drawn on the ...