LogiCORE Direct Digital Synthesis (DDS) Compiler v1.0 - Why are the outputs on the DDS schematic symbol always displayed as 32 bits wide?

AR#	24412	Search For Another Answer
Topic	IP-DSP Digital Comms
Last Updated	03/18/2008
Status	Active

Description

Keywords: 8.2i, ISE, CORE, CORE Generator, CORE Generator, DDS, GUI

Why are the outputs on the DDS schematic symbol always displayed as 32 bits wide?

Solution

This is only an issue in the core schematic symbol. The actual values are the correct size in the HDL template, and in the netlist. You can find the correct size by looking at the ".vho" file that is output from COREGen.

This issue will be addressed in the next version of the DDS, v2.0.