Fixed-Point Data - 9.1 English

PG109 Fast Fourier Transform LogiCORE IP Product Guide

Document ID
PG109
Release Date
2022-05-04
Version
9.1 English

The Overflow ( OVFLO ) field in the Data Output and Status channels is only available when the Scaled arithmetic is used. OVFLO is driven High during unloading if any point in the data frame overflowed. For a multichannel core, there is a separate OVFLO field for each channel.

When an overflow occurs in the core, the data is wrapped rather than saturated, resulting in the transformed data becoming unusable for most applications.