pluto_hdl_adi/library/axi_ad9122/axi_ad9122_if.v

230 lines
7.3 KiB
Verilog

// ***************************************************************************
// ***************************************************************************
// 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_ad9122_if #(
parameter DEVICE_TYPE = 0,
parameter SERDES_OR_DDR_N = 1,
parameter MMCM_OR_BUFIO_N = 1,
parameter MMCM_CLKIN_PERIOD = 1.667,
parameter MMCM_VCO_DIV = 6,
parameter MMCM_VCO_MUL = 12,
parameter MMCM_CLK0_DIV = 2,
parameter MMCM_CLK1_DIV = 8,
parameter IO_DELAY_GROUP = "dac_if_delay_group") (
// dac interface
input dac_clk_in_p,
input dac_clk_in_n,
output dac_clk_out_p,
output dac_clk_out_n,
output dac_frame_out_p,
output dac_frame_out_n,
output [15:0] dac_data_out_p,
output [15:0] dac_data_out_n,
// internal resets and clocks
input dac_rst,
output dac_clk,
output dac_div_clk,
output reg dac_status,
// data interface
input dac_frame_i0,
input [15:0] dac_data_i0,
input dac_frame_i1,
input [15:0] dac_data_i1,
input dac_frame_i2,
input [15:0] dac_data_i2,
input dac_frame_i3,
input [15:0] dac_data_i3,
input dac_frame_q0,
input [15:0] dac_data_q0,
input dac_frame_q1,
input [15:0] dac_data_q1,
input dac_frame_q2,
input [15:0] dac_data_q2,
input dac_frame_q3,
input [15:0] dac_data_q3,
// mmcm reset
input mmcm_rst,
// drp interface
input up_clk,
input up_rstn,
input up_drp_sel,
input up_drp_wr,
input [11:0] up_drp_addr,
input [31:0] up_drp_wdata,
output [31:0] up_drp_rdata,
output up_drp_ready,
output up_drp_locked);
// internal registers
reg dac_status_m1 = 'd0;
// internal signals
wire dac_out_clk;
wire loaden_s;
// dac status
always @(posedge dac_div_clk) begin
if (dac_rst == 1'b1) begin
dac_status_m1 <= 1'd0;
dac_status <= 1'd0;
end else begin
dac_status_m1 <= up_drp_locked;
dac_status <= dac_status_m1;
end
end
// dac data output serdes(s) & buffers
ad_serdes_out #(
.DEVICE_TYPE (DEVICE_TYPE),
.DDR_OR_SDR_N (SERDES_OR_DDR_N),
.DATA_WIDTH (16))
i_serdes_out_data (
.rst (dac_rst),
.clk (dac_clk),
.div_clk (dac_div_clk),
.loaden (loaden_s),
.data_s0 (dac_data_i0),
.data_s1 (dac_data_q0),
.data_s2 (dac_data_i1),
.data_s3 (dac_data_q1),
.data_s4 (dac_data_i2),
.data_s5 (dac_data_q2),
.data_s6 (dac_data_i3),
.data_s7 (dac_data_q3),
.data_out_p (dac_data_out_p),
.data_out_n (dac_data_out_n));
// dac frame output serdes & buffer
ad_serdes_out #(
.DEVICE_TYPE (DEVICE_TYPE),
.DDR_OR_SDR_N (SERDES_OR_DDR_N),
.DATA_WIDTH (1))
i_serdes_out_frame (
.rst (dac_rst),
.clk (dac_clk),
.div_clk (dac_div_clk),
.loaden (loaden_s),
.data_s0 (dac_frame_i0),
.data_s1 (dac_frame_q0),
.data_s2 (dac_frame_i1),
.data_s3 (dac_frame_q1),
.data_s4 (dac_frame_i2),
.data_s5 (dac_frame_q2),
.data_s6 (dac_frame_i3),
.data_s7 (dac_frame_q3),
.data_out_p (dac_frame_out_p),
.data_out_n (dac_frame_out_n));
// dac clock output serdes & buffer
ad_serdes_out #(
.DEVICE_TYPE (DEVICE_TYPE),
.DDR_OR_SDR_N (SERDES_OR_DDR_N),
.DATA_WIDTH (1))
i_serdes_out_clk (
.rst (dac_rst),
.clk (dac_clk),
.div_clk (dac_div_clk),
.loaden (loaden_s),
.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
ad_serdes_clk #(
.DDR_OR_SDR_N (SERDES_OR_DDR_N),
.MMCM_OR_BUFR_N (MMCM_OR_BUFIO_N),
.DEVICE_TYPE (DEVICE_TYPE),
.MMCM_CLKIN_PERIOD (MMCM_CLKIN_PERIOD),
.MMCM_VCO_DIV (MMCM_VCO_DIV),
.MMCM_VCO_MUL (MMCM_VCO_MUL),
.MMCM_CLK0_DIV (MMCM_CLK0_DIV),
.MMCM_CLK1_DIV (MMCM_CLK1_DIV))
i_serdes_clk (
.rst (mmcm_rst),
.clk_in_p (dac_clk_in_p),
.clk_in_n (dac_clk_in_n),
.clk (dac_clk),
.div_clk (dac_div_clk),
.out_clk (dac_out_clk),
.loaden (loaden_s),
.phase (),
.up_clk (up_clk),
.up_rstn (up_rstn),
.up_drp_sel (up_drp_sel),
.up_drp_wr (up_drp_wr),
.up_drp_addr (up_drp_addr),
.up_drp_wdata (up_drp_wdata),
.up_drp_rdata (up_drp_rdata),
.up_drp_ready (up_drp_ready),
.up_drp_locked (up_drp_locked));
endmodule
// ***************************************************************************
// ***************************************************************************