74 lines
2.3 KiB
Verilog
74 lines
2.3 KiB
Verilog
// ***************************************************************************
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// ***************************************************************************
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// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
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//
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// This core is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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// A PARTICULAR PURPOSE.
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//
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// Redistribution and use of source or resulting binaries, with or without modification
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// of this file, are permitted under one of the following two license terms:
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//
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// 1. The GNU General Public License version 2 as published by the
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// Free Software Foundation, which can be found in the top level directory of
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// the repository (LICENSE_GPL2), and at: <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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//
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// OR
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//
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// 2. An ADI specific BSD license as noted in the top level directory, or on-line at:
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// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
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// This will allow to generate bit files and not release the source code,
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// as long as it attaches to an ADI device.
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//
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// ***************************************************************************
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// ***************************************************************************
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`timescale 1ps/1ps
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module ad_mul #(
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parameter DELAY_DATA_WIDTH = 16) (
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// data_p = data_a * data_b;
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input clk,
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input [16:0] data_a,
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input [16:0] data_b,
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output [33:0] data_p,
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// delay interface
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input [(DELAY_DATA_WIDTH-1):0] ddata_in,
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output reg [(DELAY_DATA_WIDTH-1):0] ddata_out);
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// internal registers
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reg [(DELAY_DATA_WIDTH-1):0] p1_ddata = 'd0;
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reg [(DELAY_DATA_WIDTH-1):0] p2_ddata = 'd0;
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// a/b reg, m-reg, p-reg delay match
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always @(posedge clk) begin
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p1_ddata <= ddata_in;
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p2_ddata <= p1_ddata;
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ddata_out <= p2_ddata;
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end
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MULT_MACRO #(
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.LATENCY (3),
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.WIDTH_A (17),
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.WIDTH_B (17))
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i_mult_macro (
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.CE (1'b1),
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.RST (1'b0),
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.CLK (clk),
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.A (data_a),
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.B (data_b),
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.P (data_p));
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endmodule
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// ***************************************************************************
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// ***************************************************************************
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