Efinix, Inc.
  • Introduction
  • Features
  • Device Support
  • Resource Utilization
  • Release Notes
  • Functional Description
    • Block Diagram
    • Clock Sources
    • Reset Signals
    • Power Up Handshake with FPGA Transceiver
    • Ethernet Packets, Frames, and IPG
    • User Interface AXI4-Stream
      • TX AXI ST Interface
      • RX AXI ST Interface
    • CRC Generation and Check
    • Programmable Inter Packet Gap (IPG)
    • TX PHY Interface
      • RGMII TX
      • MII TX
      • RMII TX
      • GMII TX
      • SGMII TX
    • RX PHY Interface
      • RGMII RX
      • MII RX
      • RMII RX
      • GMII RX
      • SGMII RX
    • Data Streaming Modes for Transmission
      • Cut Through Mode
      • Cut Through Mode with Width Adaptation
      • Store Forward Mode
    • Data Streaming Modes for Reception
      • Cut Through Mode
      • FIFO Mode
    • Automatic Padding for Short TX Frames
    • Terminating Bad TX Frames
      • Non-Compliant tx_axis_mac_tlast
      • Assertion of tx_axis_mac_tuser
      • Non-Streaming TX Data
      • Dropped tx_axis_mac_tvalid Before End of Frame
      • TX FIFO Overflow
    • Erroneous RX Frame
      • Undersized RX Frame
      • Oversized RX Frame
      • Frame Check Sequence (FCS) Error
      • Mismatched Length RX Frame
      • Non-Streaming RX Data Frame (SGMII)
      • Error Frame
    • Address Filtering and Broadcast Filtering at RX
    • Priority Flow Control (Duplex Mode)
      • Send Pause Frame at TX
      • Decoding Pause Frame at RX
    • Statistic Reporting
      • aFramesTransmittedOK
      • aTxPAUSEMACCtrlFrames
      • ifOutErrors
      • aTxFifoOverflowFramesErrors
      • aTxIncontinuityFramesErrors
      • aFramesReceivedLen
      • etherStatsUndersizePkts
      • etherStatsOversizePkts
      • aRxFrameMismatchedLength
      • aFrameCheckSequenceErrors
      • aRxFilterFramesErrors
      • aRxPAUSEMACCtrlFrames
      • ifInErrors
      • aFramesReceivedOK
      • etherStatsPkts
  • Latency
  • IP Manager
  • Customizing the Triple Speed Ethernet MAC
  • Hidden Options
    • NO_PREAMBLE
  • Ports
  • Control and Status Registers
  • Triple Speed Ethernet MAC Example Design
    • Example Design with External PHY
      • Required Hardware
      • Hardware Set Up for Trion® T120 BGA324 Development Board
        • Set Up a USB-to-UART Module
      • Hardware Set Up for Titanium Ti60 F225 Development Board
        • Set Up a USB-to-UART Module
      • Using the Example with the RISC-V SDK
      • Test Modes
        • Normal Mode Test
        • Linked Partner Test
      • Realigning the PHY Clock
        • Using the PHY RGMII Clock-to-Data Delay (Trion only)
      • RGMII Dynamic Clock Switch (Titanium only)
      • Using Wireshark
      • Example Design Configuration Registers
    • Example Design with FPGA Transceiver
    • Available Macros in the Transceiver Example Design
    • Enabling the Macros in the Transceiver Example Design
    • Generating the Example Design
    • Virtual I/O Debugger Settings
  • Triple Speed Ethernet MAC Testbench
  • Differences with Ethernet 10G MAC Core
  • Revision History

Terminating Bad TX Frames

The following conditions are the causes of a frame being terminated as a bad frame at TX channels:
  • Non-Compliant tx_axis_mac_tlast
  • Assertion of tx_axis_mac_tuser
  • Non-streaming TX data
  • Dropped tx_axis_mac_tvalid (Cut Through mode only)
  • TXFIFO overflow (Store Forward mode only)
  • Non-Compliant tx_axis_mac_tlast
  • Assertion of tx_axis_mac_tuser
  • Non-Streaming TX Data
  • Dropped tx_axis_mac_tvalid Before End of Frame
  • TX FIFO Overflow
Parent topic: Functional Description

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