TDATA Format - TDATA Format - 9.1 English - PG109

Fast Fourier Transform LogiCORE IP Product Guide (PG109)
Document ID
PG109
Release Date
2025-12-17
Version
9.1 English

The data fields are packed into the m_axis_status_tdata vector in the following order (starting from the LSB):

  1. (optional) BLK_EXP plus padding for channel 0
  2. (optional) BLK_EXP plus padding for channel 1 etc.
  3. (optional) OVFLO for channel 0
  4. (optional) OVFLO for channel 1 etc.
  5. Padding to make TDATA 8-bit aligned. Only needed when OVFLO is present

The core cannot be configured to have both BLK_EXP and OVFLO.

Figure 1. Status Channel TDATA (m_axis_status_tdata) Format

Optional fields are shown as dotted. As all fields are optional, it is possible to configure the core such that TDATA would have no fields. In this case the entire Status channel is automatically removed from the core interface.