Altera 10-Gbps Ethernet MAC MegaCore Function - Manual (Page 74)

Chapter 7: Functional Description 7–7
Transmit Datapath
February 2014 Altera Corporation 10-Gbps Ethernet MAC MegaCore Function User Guide
Figure 7–5. Avalon-ST Transmit and Receive Interface with CRC-32 Checksum Insertion
Note to Figure 7–5 :
(1) This value (which varies depending on the frame size) indicates the number of symbols that are empty during the
cycles that mark the end of a frame.
tx_clk_clk
avalon_st_tx_ready
avalon_st_tx_valid
avalon_st_tx_startofpacket
avalon_st_tx_endofpacket
avalon_st_tx_data[63:0]
avalon_st_tx_empty[2:0]
avalon_st_tx_error
...00000000
0 4(1)
rx_clk_clk
avalon_st_rx_ready
avalon_st_rx_valid
avalon_st_rx_startofpacket
avalon_st_rx_endofpacket
avalon_st_rx_data[63:0]
avalon_st_rx_empty[2:0]
avalon_st_rx_error[5:0]
...4EB30AF4
0