Differences with Ethernet 10G MAC Core

When crc_fwd = 1:
  • Triple Speed Ethernet MAC core forward CRC octets on rx_axis_mac_tdata. The signals rx_axis_mac_tvalid remain asserted until the last CRC octet, with rx_axis_mac_tlast asserted at the last CRC octet.
  • Ethernet 10G MAC core, in contrast, ends TVALID and TLAST at the final data octet. The CRC octets are driven on TDATA immediately after the last data octet.