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AR# 24101

LogiCORE Complex Multiplier v2.1 - Why is the option to use rounding not available in my multiplier?

Description

When I attempt to create the Complex Multiplier v2.1 core, the option to use rounding is grayed out and truncation is automatically selected. Why?

Solution

Currently, the only architecture that supports rounding in the Complex Multiplier v2.1 core is Virtex-4. All other architectures default to truncation.

This issue has been fixed in v3.0 and beyond.

For a detailed list of LogiCORE Complex Multiplier Release Notes and Known Issues, see (Xilinx Answer 21591).

AR# 24101
Date Created 03/03/2008
Last Updated 12/15/2012
Status Active
Type General Article