cnt_rx_frame_errors

The statistic cnt_rx_frame_errors reports the number of RX frames with the error conditions as follows:
  • Undersized RX frame
  • Oversized RX frame
  • RX frame length mismatch
  • FCS error
  • Non-Streaming RX data frame
  • Error frame
  • Dropped RX frame due to broadcast and address filtering

This statistic register updates at a clock cycle after the end of the frame.

Note: For non-dropped RX frames, RX_AXI_TUSER is asserted to 1 as described in Erroneous RX Frame.

Figure 1 shows the cnt_rx_frame_errors statistic updates due to non-streaming RX data frame. As described in Non-Streaming RX Data Frame, when the RX data frame is non-streaming, RX_AXI_TUSER asserts 1 at EOF. The statistic cnt_rx_frame_errors also increments at a clock cycle at EOF.

Figure 1. RX Statistic Reporting – Non-Streaming RX Data Frame

Figure 2. RX Statistic Reporting – Error Frame