Description
The ALTECC IP has an optional sync_e output port, but there is no description in the Integer Arithmetic IP Cores User Guide.
err_detected is a output signal that will be asserted when single-bit error is detected on data bits.
sync_e is a output signal which will go high whenever a single-bit error is detected on the parity bits.
Resolution
This information will be included in the Integer Arithmetic IP Cores User Guide in a future update.