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pluto_hdl_adi/library/common/ad_mmcm_drp.v

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// ***************************************************************************
// ***************************************************************************
// 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.
// ***************************************************************************
// ***************************************************************************
// MMCM_OR_BUFR_N with DRP and device specific
`timescale 1ns/100ps
module ad_mmcm_drp (
// clocks
clk,
clk2,
clk_sel,
mmcm_rst,
mmcm_clk_0,
mmcm_clk_1,
mmcm_clk_2,
// drp interface
up_clk,
up_rstn,
up_drp_sel,
up_drp_wr,
up_drp_addr,
up_drp_wdata,
up_drp_rdata,
up_drp_ready,
up_drp_locked);
// parameters
parameter MMCM_DEVICE_TYPE = 0;
localparam MMCM_DEVICE_7SERIES = 0;
localparam MMCM_DEVICE_VIRTEX6 = 1;
parameter MMCM_CLKIN_PERIOD = 1.667;
parameter MMCM_CLKIN2_PERIOD = 1.667;
parameter MMCM_VCO_DIV = 6;
parameter MMCM_VCO_MUL = 12.000;
parameter MMCM_CLK0_DIV = 2.000;
parameter MMCM_CLK0_PHASE = 0.000;
parameter MMCM_CLK1_DIV = 6;
parameter MMCM_CLK1_PHASE = 0.000;
parameter MMCM_CLK2_DIV = 2.000;
parameter MMCM_CLK2_PHASE = 0.000;
// clocks
input clk;
input clk2;
input clk_sel;
input mmcm_rst;
output mmcm_clk_0;
output mmcm_clk_1;
output mmcm_clk_2;
// drp interface
input up_clk;
input up_rstn;
input up_drp_sel;
input up_drp_wr;
input [11:0] up_drp_addr;
input [15:0] up_drp_wdata;
output [15:0] up_drp_rdata;
output up_drp_ready;
output up_drp_locked;
// internal registers
reg [15:0] up_drp_rdata = 'd0;
reg up_drp_ready = 'd0;
reg up_drp_locked_m1 = 'd0;
reg up_drp_locked = 'd0;
// internal signals
wire bufg_fb_clk_s;
wire mmcm_fb_clk_s;
wire mmcm_clk_0_s;
wire mmcm_clk_1_s;
wire mmcm_clk_2_s;
wire mmcm_locked_s;
wire [15:0] up_drp_rdata_s;
wire up_drp_ready_s;
// drp read and locked
always @(negedge up_rstn or posedge up_clk) begin
if (up_rstn == 1'b0) begin
up_drp_rdata <= 'd0;
up_drp_ready <= 'd0;
up_drp_locked_m1 <= 1'd0;
up_drp_locked <= 1'd0;
end else begin
up_drp_rdata <= up_drp_rdata_s;
up_drp_ready <= up_drp_ready_s;
up_drp_locked_m1 <= mmcm_locked_s;
up_drp_locked <= up_drp_locked_m1;
end
end
// instantiations
generate
if (MMCM_DEVICE_TYPE == MMCM_DEVICE_VIRTEX6) begin
MMCM_ADV #(
.BANDWIDTH ("OPTIMIZED"),
.CLKOUT4_CASCADE ("FALSE"),
.CLOCK_HOLD ("FALSE"),
.COMPENSATION ("ZHOLD"),
.STARTUP_WAIT ("FALSE"),
.DIVCLK_DIVIDE (MMCM_VCO_DIV),
.CLKFBOUT_MULT_F (MMCM_VCO_MUL),
.CLKFBOUT_PHASE (0.000),
.CLKFBOUT_USE_FINE_PS ("FALSE"),
.CLKOUT0_DIVIDE_F (MMCM_CLK0_DIV),
.CLKOUT0_PHASE (MMCM_CLK0_PHASE),
.CLKOUT0_DUTY_CYCLE (0.500),
.CLKOUT0_USE_FINE_PS ("FALSE"),
.CLKOUT1_DIVIDE (MMCM_CLK1_DIV),
.CLKOUT1_PHASE (MMCM_CLK1_PHASE),
.CLKOUT1_DUTY_CYCLE (0.500),
.CLKOUT1_USE_FINE_PS ("FALSE"),
.CLKOUT2_DIVIDE (MMCM_CLK2_DIV),
.CLKOUT2_PHASE (MMCM_CLK2_PHASE),
.CLKOUT2_DUTY_CYCLE (0.500),
.CLKOUT2_USE_FINE_PS ("FALSE"),
.CLKIN1_PERIOD (MMCM_CLKIN_PERIOD),
.CLKIN2_PERIOD (MMCM_CLKIN2_PERIOD),
.REF_JITTER1 (0.010))
i_mmcm (
.CLKIN1 (clk),
.CLKFBIN (bufg_fb_clk_s),
.CLKFBOUT (mmcm_fb_clk_s),
.CLKOUT0 (mmcm_clk_0_s),
.CLKOUT1 (mmcm_clk_1_s),
.CLKOUT2 (mmcm_clk_2_s),
.LOCKED (mmcm_locked_s),
.DCLK (up_clk),
.DEN (up_drp_sel),
.DADDR (up_drp_addr[6:0]),
.DWE (up_drp_wr),
.DI (up_drp_wdata),
.DO (up_drp_rdata_s),
.DRDY (up_drp_ready_s),
.CLKFBOUTB (),
.CLKOUT0B (),
.CLKOUT1B (),
.CLKOUT2B (),
.CLKOUT3 (),
.CLKOUT3B (),
.CLKOUT4 (),
.CLKOUT5 (),
.CLKOUT6 (),
.CLKIN2 (clk2),
.CLKINSEL (clk_sel),
.PSCLK (1'b0),
.PSEN (1'b0),
.PSINCDEC (1'b0),
.PSDONE (),
.CLKINSTOPPED (),
.CLKFBSTOPPED (),
.PWRDWN (1'b0),
.RST (mmcm_rst));
end
if (MMCM_DEVICE_TYPE == MMCM_DEVICE_7SERIES) begin
MMCME2_ADV #(
.BANDWIDTH ("OPTIMIZED"),
.CLKOUT4_CASCADE ("FALSE"),
.COMPENSATION ("ZHOLD"),
.STARTUP_WAIT ("FALSE"),
.DIVCLK_DIVIDE (MMCM_VCO_DIV),
.CLKFBOUT_MULT_F (MMCM_VCO_MUL),
.CLKFBOUT_PHASE (0.000),
.CLKFBOUT_USE_FINE_PS ("FALSE"),
.CLKOUT0_DIVIDE_F (MMCM_CLK0_DIV),
.CLKOUT0_PHASE (MMCM_CLK0_PHASE),
.CLKOUT0_DUTY_CYCLE (0.500),
.CLKOUT0_USE_FINE_PS ("FALSE"),
.CLKOUT1_DIVIDE (MMCM_CLK1_DIV),
.CLKOUT1_PHASE (MMCM_CLK1_PHASE),
.CLKOUT1_DUTY_CYCLE (0.500),
.CLKOUT1_USE_FINE_PS ("FALSE"),
.CLKOUT2_DIVIDE (MMCM_CLK2_DIV),
.CLKOUT2_PHASE (MMCM_CLK2_PHASE),
.CLKOUT2_DUTY_CYCLE (0.500),
.CLKOUT2_USE_FINE_PS ("FALSE"),
.CLKIN1_PERIOD (MMCM_CLKIN_PERIOD),
.CLKIN2_PERIOD (MMCM_CLKIN2_PERIOD),
.REF_JITTER1 (0.010))
i_mmcm (
.CLKIN1 (clk),
.CLKFBIN (bufg_fb_clk_s),
.CLKFBOUT (mmcm_fb_clk_s),
.CLKOUT0 (mmcm_clk_0_s),
.CLKOUT1 (mmcm_clk_1_s),
.CLKOUT2 (mmcm_clk_2_s),
.LOCKED (mmcm_locked_s),
.DCLK (up_clk),
.DEN (up_drp_sel),
.DADDR (up_drp_addr[6:0]),
.DWE (up_drp_wr),
.DI (up_drp_wdata),
.DO (up_drp_rdata_s),
.DRDY (up_drp_ready_s),
.CLKFBOUTB (),
.CLKOUT0B (),
.CLKOUT1B (),
.CLKOUT2B (),
.CLKOUT3 (),
.CLKOUT3B (),
.CLKOUT4 (),
.CLKOUT5 (),
.CLKOUT6 (),
.CLKIN2 (clk2),
.CLKINSEL (clk_sel),
.PSCLK (1'b0),
.PSEN (1'b0),
.PSINCDEC (1'b0),
.PSDONE (),
.CLKINSTOPPED (),
.CLKFBSTOPPED (),
.PWRDWN (1'b0),
.RST (mmcm_rst));
end
endgenerate
BUFG i_fb_clk_bufg (.I (mmcm_fb_clk_s), .O (bufg_fb_clk_s));
BUFG i_clk_0_bufg (.I (mmcm_clk_0_s), .O (mmcm_clk_0));
BUFG i_clk_1_bufg (.I (mmcm_clk_1_s), .O (mmcm_clk_1));
BUFG i_clk_2_bufg (.I (mmcm_clk_2_s), .O (mmcm_clk_2));
endmodule
// ***************************************************************************
// ***************************************************************************
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