Data Output Channel - 9.1 English

PG109 Fast Fourier Transform LogiCORE IP Product Guide

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

The Data Output channel contains the real and imaginary results of the transform, which are carried on TDATA. In addition, TUSER carries per-sample status information relating to the sample data on TDATA. This status information is intended for use by downstream slaves that directly process data samples. It cannot get out of synchronization with the data as it is transferred in the same channel. The following information is classed as per-sample status:

1. XK_INDEX

2. Block Exponent ( BLK_EXP ) for each FFT channel

3. Overflow ( OVFLO ) for each FFT channel