User Interface Ports - 11.1 English

Aurora 8B/10B LogiCORE IP Product Guide (PG046)

Document ID
PG046
Release Date
2023-10-19
Version
11.1 English

Table: User I/O Ports (TX) and Table: User I/O Ports (RX) list duplex and simplex core AXI4-Stream TX and RX data port descriptions.

Table 2-1:      User I/O Ports (TX)

Name

Direction

Clock Domain

Description

USER_DATA_S_AXI_TX

s_axi_tx_tdata[0:(8n–1)] or s_axi_tx_tdata[(8n–1):0]

Input

user_clk

Outgoing data. n is the number of bytes computed as Number of lanes x Lane Width.

s_axi_tx_tready

Output

user_clk

Asserted when signals from the source are accepted and when outgoing data is ready to send.

s_axi_tx_tlast(1)

Input

user_clk

Signals the end of the frame.

s_axi_tx_tkeep[0:(n–1)] or s_axi_tx_tkeep[(n–1):0](1)

Input

user_clk

Specifies the number of valid bytes in the last data beat; valid only while s_axi_tx_tlast is asserted. s_axi_tx_tkeep is the byte qualifier that indicates whether the content of the associated byte of s_axi_tx_tdata is valid or not. The Aurora 8B/10B core expects the data to be filled continuously from LSB to MSB. There cannot be invalid bytes interleaved with the valid s_axi_tx_tdata bus.

s_axi_tx_tvalid

Input

user_clk

Asserted when outgoing AXI4-Stream signals or signals from the source are valid.

Notes:

1.This port is not available if the Streaming interface option is chosen.

Table 2-2:      User I/O Ports (RX)

Name

Direction

Clock Domain

Description

USER_DATA_M_AXI_RX

m_axi_rx_tdata[0:8(n–1)] or m_axi_rx_tdata[8(n–1):0]

Output

user_clk

Incoming data from channel partner (Ascending bit order).

m_axi_rx_tlast(1)

Output

user_clk

Signals the end of the incoming frame (asserted for a single user clock cycle).

m_axi_rx_tkeep[0:(n–1)] or m_axi_rx_tkeep[(n–1):0](1)

Output

user_clk

Specifies the number of valid bytes in the last data beat.

m_axi_rx_tvalid

Output

user_clk

Asserted when outgoing data and control signals or data and control signals from an Aurora 8B/10B core are valid.

Notes:

1.This port is not available if the Streaming interface option is chosen.