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//
// Copyright 2011-2012 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
// Copyright 2022 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
// Module: setting_reg
//
// Description:
//
// A settings register is a peripheral for the settings register bus. When
// the settings register sees the strobe and a matching address, the outputs
// will be become registered to the given input bus.
//
module setting_reg #(
parameter my_addr = 0,
parameter awidth = 8,
parameter width = 32,
parameter at_reset = 0
) (
input wire clk,
input wire rst,
input wire strobe,
input wire [awidth-1:0] addr,
input wire [ 31:0] in,
output reg [ width-1:0] out,
output reg changed
);
always @(posedge clk)
if(rst) begin
out <= at_reset;
changed <= 1'b0;
end else begin
if(strobe && (my_addr == addr)) begin
out <= in[width-1:0];
changed <= 1'b1;
end else begin
changed <= 1'b0;
end
end
endmodule // setting_reg
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