taxi/rtl/eth/taxi_eth_mac_phy_10g_tx.sv

// SPDX-License-Identifier: CERN-OHL-S-2.0
/*

Copyright (c) 2019-2025 FPGA Ninja, LLC

Authors:
- Alex Forencich

*/

`resetall
`timescale 1ns / 1ps
`default_nettype none

/*
 * 10G Ethernet MAC/PHY combination
 */
module taxi_eth_mac_phy_10g_tx #
(
    parameter DATA_W = 64,
    parameter HDR_W = (DATA_W/32),
    parameter logic PADDING_EN = 1'b1,
    parameter logic DIC_EN = 1'b1,
    parameter MIN_FRAME_LEN = 64,
    parameter logic PTP_TS_EN = 1'b0,
    parameter logic PTP_TS_FMT_TOD = 1'b1,
    parameter PTP_TS_W = PTP_TS_FMT_TOD ? 96 : 64,
    parameter logic TX_CPL_CTRL_IN_TUSER = 1'b0,
    parameter logic BIT_REVERSE = 1'b0,
    parameter logic SCRAMBLER_DISABLE = 1'b0,
    parameter logic PRBS31_EN = 1'b0,
    parameter SERDES_PIPELINE = 0
)
(
    input  wire logic                 clk,
    input  wire logic                 rst,

    /*
     * Transmit interface (AXI stream)
     */
    taxi_axis_if.snk                  s_axis_tx,
    taxi_axis_if.src                  m_axis_tx_cpl,

    /*
     * SERDES interface
     */
    output wire logic [DATA_W-1:0]    serdes_tx_data,
    output wire logic [HDR_W-1:0]     serdes_tx_hdr,

    /*
     * PTP
     */
    input  wire logic [PTP_TS_W-1:0]  ptp_ts,

    /*
     * Status
     */
    output wire logic [1:0]           tx_start_packet,
    output wire logic                 tx_error_underflow,

    /*
     * Configuration
     */
    input  wire logic [7:0]           cfg_ifg = 8'd12,
    input  wire logic                 cfg_tx_enable,
    input  wire logic                 cfg_tx_prbs31_enable
);

wire [DATA_W-1:0] encoded_tx_data;
wire [HDR_W-1:0]  encoded_tx_hdr;

taxi_axis_baser_tx_64 #(
    .DATA_W(DATA_W),
    .HDR_W(HDR_W),
    .PADDING_EN(PADDING_EN),
    .DIC_EN(DIC_EN),
    .MIN_FRAME_LEN(MIN_FRAME_LEN),
    .PTP_TS_EN(PTP_TS_EN),
    .PTP_TS_FMT_TOD(PTP_TS_FMT_TOD),
    .PTP_TS_W(PTP_TS_W),
    .TX_CPL_CTRL_IN_TUSER(TX_CPL_CTRL_IN_TUSER)
)
axis_baser_tx_inst (
    .clk(clk),
    .rst(rst),

    /*
     * Transmit interface (AXI stream)
     */
    .s_axis_tx(s_axis_tx),
    .m_axis_tx_cpl(m_axis_tx_cpl),

    /*
     * 10GBASE-R encoded interface
     */
    .encoded_tx_data(encoded_tx_data),
    .encoded_tx_hdr(encoded_tx_hdr),

    /*
     * PTP
     */
    .ptp_ts(ptp_ts),

    /*
     * Configuration
     */
    .cfg_ifg(cfg_ifg),
    .cfg_tx_enable(cfg_tx_enable),

    /*
     * Status
     */
    .start_packet(tx_start_packet),
    .error_underflow(tx_error_underflow)
);

taxi_eth_phy_10g_tx_if #(
    .DATA_W(DATA_W),
    .HDR_W(HDR_W),
    .BIT_REVERSE(BIT_REVERSE),
    .SCRAMBLER_DISABLE(SCRAMBLER_DISABLE),
    .PRBS31_EN(PRBS31_EN),
    .SERDES_PIPELINE(SERDES_PIPELINE)
)
eth_phy_10g_tx_if_inst (
    .clk(clk),
    .rst(rst),

    /*
     * 10GBASE-R encoded interface
     */
    .encoded_tx_data(encoded_tx_data),
    .encoded_tx_hdr(encoded_tx_hdr),

    /*
     * SERDES interface
     */
    .serdes_tx_data(serdes_tx_data),
    .serdes_tx_hdr(serdes_tx_hdr),

    /*
     * Configuration
     */
    .cfg_tx_prbs31_enable(cfg_tx_prbs31_enable)
);

endmodule

`resetall