pluto_hdl_adi/library/xilinx/common/ad_mul.v

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// ***************************************************************************
// ***************************************************************************
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
//
// Each core or library found in this collection may have its own licensing terms.
// The user should keep this in in mind while exploring these cores.
//
// Redistribution and use in source and binary forms,
// with or without modification of this file, are permitted under the terms of either
// (at the option of the user):
//
// 1. The GNU General Public License version 2 as published by the
// Free Software Foundation, which can be found in the top level directory, or at:
// https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
//
// OR
//
// 2. An ADI specific BSD license as noted in the top level directory, or on-line at:
// https://github.com/analogdevicesinc/hdl/blob/dev/LICENSE
//
// ***************************************************************************
// ***************************************************************************
`timescale 1ps/1ps
module ad_mul #(
parameter DELAY_DATA_WIDTH = 16) (
// data_p = data_a * data_b;
input clk,
input [16:0] data_a,
input [16:0] data_b,
output [33:0] data_p,
// delay interface
input [(DELAY_DATA_WIDTH-1):0] ddata_in,
output reg [(DELAY_DATA_WIDTH-1):0] ddata_out);
// internal registers
reg [(DELAY_DATA_WIDTH-1):0] p1_ddata = 'd0;
reg [(DELAY_DATA_WIDTH-1):0] p2_ddata = 'd0;
// a/b reg, m-reg, p-reg delay match
always @(posedge clk) begin
p1_ddata <= ddata_in;
p2_ddata <= p1_ddata;
ddata_out <= p2_ddata;
end
MULT_MACRO #(
.LATENCY (3),
.WIDTH_A (17),
.WIDTH_B (17))
i_mult_macro (
.CE (1'b1),
.RST (1'b0),
.CLK (clk),
.A (data_a),
.B (data_b),
.P (data_p));
endmodule
// ***************************************************************************
// ***************************************************************************