Note: In these tables,
<N> = port number 0-5 and <M> is the segment number 0 to 11.
| Port Name | Clock Domain | I/O | Description |
|---|---|---|---|
| tx_axis_tready_<N> | tx_axi_clk | O | AXI TREADY. Asserted to indicate acceptance of data. |
| tx_axis_taf_<N> | tx_axi_clk | O | Almost full indicator. Provided as an advance warning that _tready is de-asserted if there is no break in incoming client data. |
| tx_axis_ch_status_vld | tx_axi_clk | O | Validation signal for the Channel Status bus; only used in independent mode |
| tx_axis_ch_status_id[5:0] | tx_axi_clk | O | Channel ID |
| tx_axis_ch_status_skip_req | tx_axi_clk | O | Indicates that the internal time-sliced MAC requires an active skip response |
| tx_axis_tuser_skip_response | tx_axi_clk | I | Asserted to indicate that returning cycle is a skip response |
| tx_axis_id_req_vld | tx_axi_clk | O | Validates tx_axis_id_req |
| tx_axis_id_req[5:0] | tx_axi_clk | O | Request Channel ID that needs to be returned (on tx_axis_tid) by client in independent mode |
| tx_axis_tvalid_<N> | tx_axi_clk | I | Valid signal for the AXI bus |
| tx_axis_tid[5:0] | tx_axi_clk | I | Channel ID for client transaction. Only used in Indendent Mode |
| tx_preamblein_<N>[55:0] | tx_axi_clk | I | TX packet preamble |
| tx_ptp_cf_offset_in_<N>[13:0] | tx_axi_clk | I | Packet offset, in octets, to the beginning of the correction field in the PTP packet. Maximum value of 16304 decimal. |
| tx_ptp_tag_field_in_<N>[7:0] | tx_axi_clk | I | Unique identifier for PTP packet which can be used to match TX timestamps with a specific packet. This tag is returned on tx_ptp_tag_out. |
| tx_ptp_udp_chksum_in_<N> | tx_axi_clk | I | Enable UDP checksum processing on 1-step PTP packets |
| tx_ptp_1588op_in_<N>[1:0] | tx_axi_clk | I |
2'b00: No operation: no timestamp is taken and the frame is not modified. Bit 0: "1-step": a timestamp should be taken and inserted into the frame. Bit 1: "2-step": a timestamp should be taken and returned to the client using the additional ports of 2-step operation. The frame itself is not modified. |
| tx_axis_tdata<M>[127:0] | tx_axi_clk | I | AXI Data |
| tx_axis_tuser_ena<M> | tx_axi_clk | I | Segment enable; deasserted to indicate per-segment IDLE |
| tx_axis_tuser_sop<M> | tx_axi_clk | I | Segment Start-of-Packet indicator; only valid for enabled segments |
| tx_axis_tuser_eop<M> | tx_axi_clk | I | Segment End-of-Packet indicator; only valid for enabled segments |
| tx_axis_tuser_err<M> | tx_axi_clk | I | Segment Error indicator |
| tx_axis_tuser_mty<M>[3:0] | tx_axi_clk | I | Segment Empty Bytes Indicator; only valid for enabled EOP
segments. It specifies the number of empty (unused) bytes in the
final segment. 4'd15 - 15 empty bytes 4'd14 - 14 empty bytes --- 4'd1 - 1 empty byte 4'd0- 0 empty byte |
| Port Name | Clock Domain | I/O | Description |
|---|---|---|---|
| rx_axis_tvalid_<N> | rx_axi_clk | O | Standard AXI valid; validates entire rx_axis_ bus |
| rx_axis_tid[5:0] | rx_axi_clk | O | Channel ID |
| rx_preambleout_<N>[55:0] | rx_axi_clk | O | RX packet preamble |
| rx_ptp_tstamp_out_<N>[31:0] | rx_axi_clk | O | Timestamp of the PTP packet with 2-8 ns granularity. Note: The upper bits is omitted to
reduce the number of output pins.
|
| rx_axis_tdata<M>[127:0] | rx_axi_clk | O | AXI data |
| rx_axis_tuser_ena<M> | rx_axi_clk | O | Per-segment enable |
| rx_axis_tuser_sop<M> | rx_axi_clk | O | Segment Start-of-Packet indicator; only valid for enabled segments |
| rx_axis_tuser_eop<M> | rx_axi_clk | O | Segment End-of-Packet indicator; only valid for enabled segments |
| rx_axis_tuser_err<M> | rx_axi_clk | O | Segment Error indicator |
| rx_axis_tuser_mty<M>[3:0] | rx_axi_clk | O | Segment Empty Bytes Indicator; only valid for enabled EOP segments.
It specifies the number of empty (unused) bytes in the final
segment. 4'd15 - 15 empty bytes 4'd14 - 14 empty bytes --- 4'd1 - 1 empty byte 4'd0- 0 empty byte |