// *************************************************************************** // *************************************************************************** // Copyright 2011(c) Analog Devices, Inc. // // All rights reserved. // // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // - Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // - Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in // the documentation and/or other materials provided with the // distribution. // - Neither the name of Analog Devices, Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // - The use of this software may or may not infringe the patent rights // of one or more patent holders. This license does not release you // from the requirement that you obtain separate licenses from these // patent holders to use this software. // - Use of the software either in source or binary form, must be run // on or directly connected to an Analog Devices Inc. component. // // THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, // INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A // PARTICULAR PURPOSE ARE DISCLAIMED. // // IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY // RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR // BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // *************************************************************************** // *************************************************************************** // *************************************************************************** // *************************************************************************** // This is the dac physical interface (drives samples from the low speed clock to the // dac clock domain. `timescale 1ns/100ps module axi_ad9739a_if #( parameter DEVICE_TYPE = 0) ( // dac interface input dac_clk_in_p, input dac_clk_in_n, output dac_clk_out_p, output dac_clk_out_n, output [13:0] dac_data_out_a_p, output [13:0] dac_data_out_a_n, output [13:0] dac_data_out_b_p, output [13:0] dac_data_out_b_n, // internal resets and clocks input dac_rst, output dac_clk, output dac_div_clk, output reg dac_status, // data interface input [15:0] dac_data_00, input [15:0] dac_data_01, input [15:0] dac_data_02, input [15:0] dac_data_03, input [15:0] dac_data_04, input [15:0] dac_data_05, input [15:0] dac_data_06, input [15:0] dac_data_07, input [15:0] dac_data_08, input [15:0] dac_data_09, input [15:0] dac_data_10, input [15:0] dac_data_11, input [15:0] dac_data_12, input [15:0] dac_data_13, input [15:0] dac_data_14, input [15:0] dac_data_15); // internal registers // internal signals wire dac_clk_in_s; wire dac_div_clk_s; // dac status always @(posedge dac_div_clk) begin if (dac_rst == 1'b1) begin dac_status <= 1'd0; end else begin dac_status <= 1'd1; end end // dac data output serdes(s) & buffers ad_serdes_out #( .DDR_OR_SDR_N(1), .DATA_WIDTH(14), .DEVICE_TYPE (DEVICE_TYPE)) i_serdes_out_data_a ( .rst (dac_rst), .clk (dac_clk), .div_clk (dac_div_clk), .loaden (1'b0), .data_s0 (dac_data_00[15:2]), .data_s1 (dac_data_02[15:2]), .data_s2 (dac_data_04[15:2]), .data_s3 (dac_data_06[15:2]), .data_s4 (dac_data_08[15:2]), .data_s5 (dac_data_10[15:2]), .data_s6 (dac_data_12[15:2]), .data_s7 (dac_data_14[15:2]), .data_out_p (dac_data_out_a_p), .data_out_n (dac_data_out_a_n)); // dac data output serdes(s) & buffers ad_serdes_out #( .DDR_OR_SDR_N(1), .DATA_WIDTH(14), .DEVICE_TYPE (DEVICE_TYPE)) i_serdes_out_data_b ( .rst (dac_rst), .clk (dac_clk), .div_clk (dac_div_clk), .loaden (1'b0), .data_s0 (dac_data_01[15:2]), .data_s1 (dac_data_03[15:2]), .data_s2 (dac_data_05[15:2]), .data_s3 (dac_data_07[15:2]), .data_s4 (dac_data_09[15:2]), .data_s5 (dac_data_11[15:2]), .data_s6 (dac_data_13[15:2]), .data_s7 (dac_data_15[15:2]), .data_out_p (dac_data_out_b_p), .data_out_n (dac_data_out_b_n)); // dac clock output serdes & buffer ad_serdes_out #( .DDR_OR_SDR_N(1), .DATA_WIDTH(1), .DEVICE_TYPE (DEVICE_TYPE)) i_serdes_out_clk ( .rst (dac_rst), .clk (dac_clk), .div_clk (dac_div_clk), .loaden (1'b0), .data_s0 (1'b1), .data_s1 (1'b0), .data_s2 (1'b1), .data_s3 (1'b0), .data_s4 (1'b1), .data_s5 (1'b0), .data_s6 (1'b1), .data_s7 (1'b0), .data_out_p (dac_clk_out_p), .data_out_n (dac_clk_out_n)); // dac clock input buffers IBUFGDS i_dac_clk_in_ibuf ( .I (dac_clk_in_p), .IB (dac_clk_in_n), .O (dac_clk_in_s)); BUFG i_dac_clk_in_gbuf ( .I (dac_clk_in_s), .O (dac_clk)); BUFR #(.BUFR_DIVIDE("4")) i_dac_div_clk_rbuf ( .CLR (1'b0), .CE (1'b1), .I (dac_clk_in_s), .O (dac_div_clk_s)); BUFG i_dac_div_clk_gbuf ( .I (dac_div_clk_s), .O (dac_div_clk)); endmodule // *************************************************************************** // ***************************************************************************