`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company: 
// Engineer: 
// 
// Create Date: 2026/01/25 21:01:38
// Design Name: 
// Module Name: lvds_1to3_copy_reg
// Project Name: 
// Target Devices: 
// Tool Versions: 
// Description: 
// 
// Dependencies: 
// 
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
// 
//////////////////////////////////////////////////////////////////////////////////


module lvds_1to3_copy_reg (
    // 输入LVDS差分信号
    input  wire        clk_in_p, clk_in_n,
    input  wire [2:0]  data_in_p, data_in_n,
    
    // 输出LVDS差分信号
    output wire        clk_out0_p, clk_out0_n,
    output wire        clk_out1_p, clk_out1_n,
    output wire        clk_out2_p, clk_out2_n,
    output wire [2:0]  data_out0_p, data_out0_n,
    output wire [2:0]  data_out1_p, data_out1_n,
    output wire [2:0]  data_out2_p, data_out2_n
);

// 输入缓冲
wire clk_ibuf;
wire [2:0] data_ibuf;

IBUFDS clk_ibuf_inst (.O(clk_ibuf), .I(clk_in_p), .IB(clk_in_n));
generate
    for (genvar i = 0; i < 3; i = i + 1) begin
        IBUFDS data_ibuf_inst (.O(data_ibuf[i]), .I(data_in_p[i]), .IB(data_in_n[i]));
    end
endgenerate

// 全局时钟
wire clk_bufg;
BUFG bufg_inst (.I(clk_ibuf), .O(clk_bufg));

// 寄存器同步
reg [2:0] data_sync0, data_sync1, data_sync2;
always @(posedge clk_bufg) begin
    data_sync0 <= data_ibuf;
    data_sync1 <= data_ibuf;
    data_sync2 <= data_ibuf;
end

// 输出缓冲
generate
    for (genvar i = 0; i < 3; i = i + 1) begin
        OBUFDS data_obuf0_inst (.O(data_out0_p[i]), .OB(data_out0_n[i]), .I(data_sync0[i]));
        OBUFDS data_obuf1_inst (.O(data_out1_p[i]), .OB(data_out1_n[i]), .I(data_sync1[i]));
        OBUFDS data_obuf2_inst (.O(data_out2_p[i]), .OB(data_out2_n[i]), .I(data_sync2[i]));
    end
endgenerate

// 时钟输出缓冲
OBUFDS clk_obuf0_inst (.O(clk_out0_p), .OB(clk_out0_n), .I(clk_bufg));
OBUFDS clk_obuf1_inst (.O(clk_out1_p), .OB(clk_out1_n), .I(clk_bufg));
OBUFDS clk_obuf2_inst (.O(clk_out2_p), .OB(clk_out2_n), .I(clk_bufg));

endmodule