Altera 10-Gbps Ethernet MAC MegaCore Function User Manual
Page 126
Chapter 9: Interface Signals
9–7
February 2014
Altera Corporation
10-Gbps Ethernet MAC MegaCore Function User Guide
Figure 9–6
shows the reception of a 60-byte frame at the Avalon-ST receive interface
when an error occurs with an overflow and undersized frame condition.
Figure 9–6. Avalon-ST Receive with Error (Overflow and Undersized Frame)
rx_clk_clk
avalon_st_rx_ready
avalon_st_rx_valid
avalon_st_rx_startofpacket
avalon_st_rx_data[63:0]
avalon_st_rx_empty[2:0]
avalon_st_rx_error[5]
avalon_st_rx_error[4]
avalon_st_rx_error[3]
avalon_st_rx_error[2]
avalon_st_rx_error[1]
avalon_st_rx_error[0]
avalon_st_rx_endofpacket
avalon_st_rxstatus_valid
avalon_st_rxstatus_data[38:0]
avalon_st_rxstatus_error[6]
avalon_st_rxstatus_error[5]
avalon_st_rxstatus_error[4]
avalon_st_rxstatus_error[3]
avalon_st_rxstatus_error[2]
avalon_st_rxstatus_error[1]
avalon_st_rxstatus_error[0]
4
0
Overflow
Undersized
frame
Undersized
frame
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