mirror of
https://github.com/corundum/corundum.git
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554 lines
14 KiB
Verilog
554 lines
14 KiB
Verilog
/*
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Copyright (c) 2014-2018 Alex Forencich
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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// Language: Verilog 2001
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`timescale 1ns / 1ps
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/*
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* FPGA top-level module
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*/
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module fpga (
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/*
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* Clock: 100MHz LVDS
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*/
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input wire clk_100mhz_p,
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input wire clk_100mhz_n,
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/*
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* GPIO
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*/
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output wire [1:0] sfp_1_led,
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output wire [1:0] sfp_2_led,
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output wire [1:0] sma_led,
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/*
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* Ethernet: SFP+
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*/
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input wire sfp_1_rx_p,
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input wire sfp_1_rx_n,
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output wire sfp_1_tx_p,
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output wire sfp_1_tx_n,
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input wire sfp_2_rx_p,
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input wire sfp_2_rx_n,
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output wire sfp_2_tx_p,
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output wire sfp_2_tx_n,
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input wire sfp_mgt_refclk_p,
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input wire sfp_mgt_refclk_n,
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output wire sfp_1_tx_disable,
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output wire sfp_2_tx_disable,
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input wire sfp_1_npres,
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input wire sfp_2_npres,
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input wire sfp_1_los,
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input wire sfp_2_los,
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output wire sfp_1_rs,
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output wire sfp_2_rs
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);
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// Clock and reset
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wire clk_100mhz_ibufg;
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wire clk_125mhz_mmcm_out;
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// Internal 125 MHz clock
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wire clk_125mhz_int;
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wire rst_125mhz_int;
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// Internal 156.25 MHz clock
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wire clk_156mhz_int;
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wire rst_156mhz_int;
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wire mmcm_rst = 1'b0;
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wire mmcm_locked;
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wire mmcm_clkfb;
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IBUFGDS #(
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.DIFF_TERM("FALSE"),
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.IBUF_LOW_PWR("FALSE")
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)
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clk_100mhz_ibufg_inst (
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.O (clk_100mhz_ibufg),
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.I (clk_100mhz_p),
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.IB (clk_100mhz_n)
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);
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// MMCM instance
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// 100 MHz in, 125 MHz out
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// PFD range: 10 MHz to 500 MHz
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// VCO range: 600 MHz to 1440 MHz
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// M = 10, D = 1 sets Fvco = 1000 MHz (in range)
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// Divide by 8 to get output frequency of 125 MHz
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MMCME3_BASE #(
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.BANDWIDTH("OPTIMIZED"),
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.CLKOUT0_DIVIDE_F(8),
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.CLKOUT0_DUTY_CYCLE(0.5),
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.CLKOUT0_PHASE(0),
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.CLKOUT1_DIVIDE(1),
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.CLKOUT1_DUTY_CYCLE(0.5),
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.CLKOUT1_PHASE(0),
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.CLKOUT2_DIVIDE(1),
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.CLKOUT2_DUTY_CYCLE(0.5),
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.CLKOUT2_PHASE(0),
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.CLKOUT3_DIVIDE(1),
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.CLKOUT3_DUTY_CYCLE(0.5),
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.CLKOUT3_PHASE(0),
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.CLKOUT4_DIVIDE(1),
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.CLKOUT4_DUTY_CYCLE(0.5),
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.CLKOUT4_PHASE(0),
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.CLKOUT5_DIVIDE(1),
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.CLKOUT5_DUTY_CYCLE(0.5),
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.CLKOUT5_PHASE(0),
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.CLKOUT6_DIVIDE(1),
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.CLKOUT6_DUTY_CYCLE(0.5),
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.CLKOUT6_PHASE(0),
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.CLKFBOUT_MULT_F(10),
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.CLKFBOUT_PHASE(0),
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.DIVCLK_DIVIDE(1),
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.REF_JITTER1(0.010),
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.CLKIN1_PERIOD(8.0),
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.STARTUP_WAIT("FALSE"),
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.CLKOUT4_CASCADE("FALSE")
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)
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clk_mmcm_inst (
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.CLKIN1(clk_100mhz_ibufg),
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.CLKFBIN(mmcm_clkfb),
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.RST(mmcm_rst),
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.PWRDWN(1'b0),
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.CLKOUT0(clk_125mhz_mmcm_out),
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.CLKOUT0B(),
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.CLKOUT1(),
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.CLKOUT1B(),
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.CLKOUT2(),
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.CLKOUT2B(),
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.CLKOUT3(),
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.CLKOUT3B(),
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.CLKOUT4(),
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.CLKOUT5(),
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.CLKOUT6(),
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.CLKFBOUT(mmcm_clkfb),
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.CLKFBOUTB(),
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.LOCKED(mmcm_locked)
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);
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BUFG
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clk_125mhz_bufg_inst (
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.I(clk_125mhz_mmcm_out),
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.O(clk_125mhz_int)
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);
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sync_reset #(
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.N(4)
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)
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sync_reset_125mhz_inst (
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.clk(clk_125mhz_int),
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.rst(~mmcm_locked),
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.sync_reset_out(rst_125mhz_int)
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);
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// GPIO
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wire [1:0] sfp_1_led_int;
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wire [1:0] sfp_2_led_int;
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wire [1:0] sma_led_int;
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// XGMII 10G PHY
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assign sfp_1_tx_disable = 1'b0;
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assign sfp_2_tx_disable = 1'b0;
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assign sfp_1_rs = 1'b1;
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assign sfp_2_rs = 1'b1;
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wire sfp_1_tx_clk_int = clk_156mhz_int;
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wire sfp_1_tx_rst_int = rst_156mhz_int;
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wire [63:0] sfp_1_txd_int;
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wire [7:0] sfp_1_txc_int;
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wire sfp_1_rx_clk_int = clk_156mhz_int;
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wire sfp_1_rx_rst_int = rst_156mhz_int;
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wire [63:0] sfp_1_rxd_int;
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wire [7:0] sfp_1_rxc_int;
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wire sfp_2_tx_clk_int = clk_156mhz_int;
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wire sfp_2_tx_rst_int = rst_156mhz_int;
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wire [63:0] sfp_2_txd_int;
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wire [7:0] sfp_2_txc_int;
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wire sfp_2_rx_clk_int = clk_156mhz_int;
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wire sfp_2_rx_rst_int = rst_156mhz_int;
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wire [63:0] sfp_2_rxd_int;
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wire [7:0] sfp_2_rxc_int;
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wire sfp_1_rx_block_lock;
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wire sfp_2_rx_block_lock;
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wire sfp_mgt_refclk;
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wire [1:0] gt_txclkout;
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wire gt_txusrclk;
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wire gt_txusrclk2;
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wire [1:0] gt_rxclkout;
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wire [1:0] gt_rxusrclk;
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wire [1:0] gt_rxusrclk2;
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wire gt_reset_tx_done;
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wire gt_reset_rx_done;
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wire [1:0] gt_txprgdivresetdone;
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wire [1:0] gt_txpmaresetdone;
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wire [1:0] gt_rxprgdivresetdone;
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wire [1:0] gt_rxpmaresetdone;
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wire gt_tx_reset = ~((>_txprgdivresetdone) & (>_txpmaresetdone));
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wire gt_rx_reset = ~>_rxpmaresetdone;
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reg gt_userclk_tx_active = 1'b0;
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reg [1:0] gt_userclk_rx_active = 1'b0;
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IBUFDS_GTE3 ibufds_gte3_sfp_mgt_refclk_inst (
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.I (sfp_mgt_refclk_p),
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.IB (sfp_mgt_refclk_n),
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.CEB (1'b0),
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.O (sfp_mgt_refclk),
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.ODIV2 ()
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);
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BUFG_GT bufg_gt_tx_usrclk_inst (
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.CE (1'b1),
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.CEMASK (1'b0),
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.CLR (gt_tx_reset),
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.CLRMASK (1'b0),
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.DIV (3'd0),
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.I (gt_txclkout[0]),
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.O (gt_txusrclk)
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);
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BUFG_GT bufg_gt_tx_usrclk2_inst (
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.CE (1'b1),
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.CEMASK (1'b0),
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.CLR (gt_tx_reset),
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.CLRMASK (1'b0),
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.DIV (3'd1),
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.I (gt_txclkout[0]),
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.O (gt_txusrclk2)
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);
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assign clk_156mhz_int = gt_txusrclk2;
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always @(posedge gt_txusrclk, posedge gt_tx_reset) begin
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if (gt_tx_reset) begin
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gt_userclk_tx_active <= 1'b0;
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end else begin
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gt_userclk_tx_active <= 1'b1;
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end
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end
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genvar n;
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generate
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for (n = 0 ; n < 2; n = n + 1) begin
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BUFG_GT bufg_gt_rx_usrclk_0_inst (
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.CE (1'b1),
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.CEMASK (1'b0),
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.CLR (gt_rx_reset),
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.CLRMASK (1'b0),
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.DIV (3'd0),
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.I (gt_rxclkout[n]),
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.O (gt_rxusrclk[n])
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);
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BUFG_GT bufg_gt_rx_usrclk2_0_inst (
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.CE (1'b1),
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.CEMASK (1'b0),
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.CLR (gt_rx_reset),
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.CLRMASK (1'b0),
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.DIV (3'd1),
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.I (gt_rxclkout[n]),
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.O (gt_rxusrclk2[n])
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);
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always @(posedge gt_rxusrclk[n], posedge gt_rx_reset) begin
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if (gt_rx_reset) begin
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gt_userclk_rx_active[n] <= 1'b0;
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end else begin
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gt_userclk_rx_active[n] <= 1'b1;
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end
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end
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end
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endgenerate
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sync_reset #(
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.N(4)
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)
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sync_reset_156mhz_inst (
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.clk(clk_156mhz_int),
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.rst(~gt_reset_tx_done),
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.sync_reset_out(rst_156mhz_int)
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);
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wire [5:0] sfp_1_gt_txheader;
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wire [127:0] sfp_1_gt_txdata;
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wire sfp_1_gt_rxgearboxslip;
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wire [5:0] sfp_1_gt_rxheader;
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wire [1:0] sfp_1_gt_rxheadervalid;
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wire [127:0] sfp_1_gt_rxdata;
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wire [1:0] sfp_1_gt_rxdatavalid;
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wire [5:0] sfp_2_gt_txheader;
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wire [127:0] sfp_2_gt_txdata;
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wire sfp_2_gt_rxgearboxslip;
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wire [5:0] sfp_2_gt_rxheader;
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wire [1:0] sfp_2_gt_rxheadervalid;
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wire [127:0] sfp_2_gt_rxdata;
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wire [1:0] sfp_2_gt_rxdatavalid;
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gtwizard_ultrascale_0
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sfp_gth_inst (
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.gtwiz_userclk_tx_active_in(>_userclk_tx_active),
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.gtwiz_userclk_rx_active_in(>_userclk_rx_active),
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.gtwiz_reset_clk_freerun_in(clk_125mhz_int),
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.gtwiz_reset_all_in(rst_125mhz_int),
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.gtwiz_reset_tx_pll_and_datapath_in(1'b0),
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.gtwiz_reset_tx_datapath_in(1'b0),
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.gtwiz_reset_rx_pll_and_datapath_in(1'b0),
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.gtwiz_reset_rx_datapath_in(1'b0),
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.gtwiz_reset_rx_cdr_stable_out(),
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.gtwiz_reset_tx_done_out(gt_reset_tx_done),
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.gtwiz_reset_rx_done_out(gt_reset_rx_done),
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.gtrefclk00_in(sfp_mgt_refclk),
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.qpll0outclk_out(),
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.qpll0outrefclk_out(),
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.gthrxn_in({sfp_2_rx_n, sfp_1_rx_n}),
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.gthrxp_in({sfp_2_rx_p, sfp_1_rx_p}),
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.rxusrclk_in(gt_rxusrclk),
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.rxusrclk2_in(gt_rxusrclk2),
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.txdata_in({sfp_2_gt_txdata, sfp_1_gt_txdata}),
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.txheader_in({sfp_2_gt_txheader, sfp_1_gt_txheader}),
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.txsequence_in({2{7'b0}}),
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.txusrclk_in({2{gt_txusrclk}}),
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.txusrclk2_in({2{gt_txusrclk2}}),
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.gtpowergood_out(),
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.gthtxn_out({sfp_2_tx_n, sfp_1_tx_n}),
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.gthtxp_out({sfp_2_tx_p, sfp_1_tx_p}),
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.txpolarity_in(2'b11),
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.rxpolarity_in(2'b00),
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.rxgearboxslip_in({sfp_2_gt_rxgearboxslip, sfp_1_gt_rxgearboxslip}),
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.rxdata_out({sfp_2_gt_rxdata, sfp_1_gt_rxdata}),
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.rxdatavalid_out({sfp_2_gt_rxdatavalid, sfp_1_gt_rxdatavalid}),
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.rxheader_out({sfp_2_gt_rxheader, sfp_1_gt_rxheader}),
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.rxheadervalid_out({sfp_2_gt_rxheadervalid, sfp_1_gt_rxheadervalid}),
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.rxoutclk_out(gt_rxclkout),
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.rxpmaresetdone_out(gt_rxpmaresetdone),
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.rxprgdivresetdone_out(gt_rxprgdivresetdone),
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.rxstartofseq_out(),
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.txoutclk_out(gt_txclkout),
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.txpmaresetdone_out(gt_txpmaresetdone),
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.txprgdivresetdone_out(gt_txprgdivresetdone)
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);
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wire sfp_1_serdes_reset;
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sync_reset #(
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.N(4)
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)
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sfp_1_pcs_pma_rx_serdes_reset_sync_inst (
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.clk(gt_rxusrclk[0]),
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.rst(~gt_reset_rx_done),
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.sync_reset_out(sfp_1_serdes_reset)
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);
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ten_gig_eth_pcs_pma_0
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sfp_pcs_pma_1 (
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.rx_reset_0(rst_156mhz_int),
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.rx_mii_d_0(sfp_1_rxd_int),
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.rx_mii_c_0(sfp_1_rxc_int),
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.ctl_rx_test_pattern_0(1'b0),
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.ctl_rx_test_pattern_enable_0(1'b0),
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.ctl_rx_data_pattern_select_0(1'b0),
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.ctl_rx_prbs31_test_pattern_enable_0(1'b0),
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.stat_rx_block_lock_0(sfp_1_rx_block_lock),
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.stat_rx_framing_err_valid_0(),
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.stat_rx_framing_err_0(),
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.stat_rx_hi_ber_0(),
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.stat_rx_valid_ctrl_code_0(),
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.stat_rx_bad_code_0(),
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.stat_rx_bad_code_valid_0(),
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.stat_rx_error_valid_0(),
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.stat_rx_error_0(),
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.stat_rx_fifo_error_0(),
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.stat_rx_local_fault_0(),
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.stat_rx_status_0(),
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.tx_reset_0(rst_156mhz_int),
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.tx_mii_d_0(sfp_1_txd_int),
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.tx_mii_c_0(sfp_1_txc_int),
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.ctl_tx_test_pattern_0(1'b0),
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.ctl_tx_test_pattern_enable_0(1'b0),
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.ctl_tx_test_pattern_select_0(1'b0),
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.ctl_tx_data_pattern_select_0(1'b0),
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.ctl_tx_test_pattern_seed_a_0(58'd0),
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.ctl_tx_test_pattern_seed_b_0(58'd0),
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.ctl_tx_prbs31_test_pattern_enable_0(1'b0),
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.stat_tx_local_fault_0(),
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// GTH interface
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.tx_core_clk_0(clk_156mhz_int),
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.rx_core_clk_0(clk_156mhz_int),
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.rx_serdes_clk_0(gt_rxusrclk2[0]),
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.rx_serdes_reset_0(sfp_1_serdes_reset),
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.rxgearboxslip_in_0(sfp_1_gt_rxgearboxslip),
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.rxdatavalid_out_0(sfp_1_gt_rxdatavalid),
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.rxheader_out_0(sfp_1_gt_rxheader),
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.rxheadervalid_out_0(sfp_1_gt_rxheadervalid),
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.rx_serdes_data_out_0(sfp_1_gt_rxdata),
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.tx_serdes_data_in_0(sfp_1_gt_txdata),
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.txheader_in_0(sfp_1_gt_txheader)
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);
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wire sfp_2_serdes_reset;
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sync_reset #(
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.N(4)
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)
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sfp_2_pcs_pma_rx_serdes_reset_sync_inst (
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.clk(gt_rxusrclk[1]),
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.rst(~gt_reset_rx_done),
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.sync_reset_out(sfp_2_serdes_reset)
|
|
);
|
|
|
|
ten_gig_eth_pcs_pma_0
|
|
sfp_pcs_pma_2 (
|
|
.rx_reset_0(rst_156mhz_int),
|
|
.rx_mii_d_0(sfp_2_rxd_int),
|
|
.rx_mii_c_0(sfp_2_rxc_int),
|
|
|
|
.ctl_rx_test_pattern_0(1'b0),
|
|
.ctl_rx_test_pattern_enable_0(1'b0),
|
|
.ctl_rx_data_pattern_select_0(1'b0),
|
|
.ctl_rx_prbs31_test_pattern_enable_0(1'b0),
|
|
|
|
.stat_rx_block_lock_0(sfp_2_rx_block_lock),
|
|
.stat_rx_framing_err_valid_0(),
|
|
.stat_rx_framing_err_0(),
|
|
.stat_rx_hi_ber_0(),
|
|
.stat_rx_valid_ctrl_code_0(),
|
|
.stat_rx_bad_code_0(),
|
|
.stat_rx_bad_code_valid_0(),
|
|
.stat_rx_error_valid_0(),
|
|
.stat_rx_error_0(),
|
|
.stat_rx_fifo_error_0(),
|
|
.stat_rx_local_fault_0(),
|
|
.stat_rx_status_0(),
|
|
|
|
.tx_reset_0(rst_156mhz_int),
|
|
.tx_mii_d_0(sfp_2_txd_int),
|
|
.tx_mii_c_0(sfp_2_txc_int),
|
|
|
|
.ctl_tx_test_pattern_0(1'b0),
|
|
.ctl_tx_test_pattern_enable_0(1'b0),
|
|
.ctl_tx_test_pattern_select_0(1'b0),
|
|
.ctl_tx_data_pattern_select_0(1'b0),
|
|
.ctl_tx_test_pattern_seed_a_0(58'd0),
|
|
.ctl_tx_test_pattern_seed_b_0(58'd0),
|
|
.ctl_tx_prbs31_test_pattern_enable_0(1'b0),
|
|
|
|
.stat_tx_local_fault_0(),
|
|
|
|
// GTH interface
|
|
.tx_core_clk_0(clk_156mhz_int),
|
|
.rx_core_clk_0(clk_156mhz_int),
|
|
.rx_serdes_clk_0(gt_rxusrclk2[1]),
|
|
.rx_serdes_reset_0(sfp_2_serdes_reset),
|
|
.rxgearboxslip_in_0(sfp_2_gt_rxgearboxslip),
|
|
.rxdatavalid_out_0(sfp_2_gt_rxdatavalid),
|
|
.rxheader_out_0(sfp_2_gt_rxheader),
|
|
.rxheadervalid_out_0(sfp_2_gt_rxheadervalid),
|
|
.rx_serdes_data_out_0(sfp_2_gt_rxdata),
|
|
.tx_serdes_data_in_0(sfp_2_gt_txdata),
|
|
.txheader_in_0(sfp_2_gt_txheader)
|
|
);
|
|
|
|
assign sfp_1_led[0] = sfp_1_rx_block_lock;
|
|
assign sfp_1_led[1] = 1'b0;
|
|
assign sfp_2_led[0] = sfp_2_rx_block_lock;
|
|
assign sfp_2_led[1] = 1'b0;
|
|
assign sma_led = sma_led_int;
|
|
|
|
fpga_core
|
|
core_inst (
|
|
/*
|
|
* Clock: 156.25 MHz
|
|
* Synchronous reset
|
|
*/
|
|
.clk(clk_156mhz_int),
|
|
.rst(rst_156mhz_int),
|
|
/*
|
|
* GPIO
|
|
*/
|
|
.sfp_1_led(sfp_1_led_int),
|
|
.sfp_2_led(sfp_2_led_int),
|
|
.sma_led(sma_led_int),
|
|
/*
|
|
* Ethernet: SFP+
|
|
*/
|
|
.sfp_1_tx_clk(sfp_1_tx_clk_int),
|
|
.sfp_1_tx_rst(sfp_1_tx_rst_int),
|
|
.sfp_1_txd(sfp_1_txd_int),
|
|
.sfp_1_txc(sfp_1_txc_int),
|
|
.sfp_1_rx_clk(sfp_1_rx_clk_int),
|
|
.sfp_1_rx_rst(sfp_1_rx_rst_int),
|
|
.sfp_1_rxd(sfp_1_rxd_int),
|
|
.sfp_1_rxc(sfp_1_rxc_int),
|
|
.sfp_2_tx_clk(sfp_2_tx_clk_int),
|
|
.sfp_2_tx_rst(sfp_2_tx_rst_int),
|
|
.sfp_2_txd(sfp_2_txd_int),
|
|
.sfp_2_txc(sfp_2_txc_int),
|
|
.sfp_2_rx_clk(sfp_2_rx_clk_int),
|
|
.sfp_2_rx_rst(sfp_2_rx_rst_int),
|
|
.sfp_2_rxd(sfp_2_rxd_int),
|
|
.sfp_2_rxc(sfp_2_rxc_int)
|
|
);
|
|
|
|
endmodule
|