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//
// Copyright 2011-2012 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
// Grab settings off the wishbone bus, send them out to our simpler bus on the fast clock
module settings_bus
#(parameter AWIDTH=16, parameter DWIDTH=32, parameter SWIDTH=8)
(input wb_clk,
input wb_rst,
input [AWIDTH-1:0] wb_adr_i,
input [DWIDTH-1:0] wb_dat_i,
input wb_stb_i,
input wb_we_i,
output reg wb_ack_o,
output reg strobe,
output reg [SWIDTH-1:0] addr,
output reg [31:0] data);
reg stb_int, stb_int_d1;
always @(posedge wb_clk)
if(wb_rst)
begin
strobe <= 1'b0;
addr <= {SWIDTH{1'b0}};
data <= 32'd0;
end
else if(wb_we_i & wb_stb_i & ~wb_ack_o)
begin
strobe <= 1'b1;
addr <= wb_adr_i[SWIDTH+1:2];
data <= wb_dat_i;
end
else
strobe <= 1'b0;
always @(posedge wb_clk)
if(wb_rst)
wb_ack_o <= 0;
else
wb_ack_o <= wb_stb_i & ~wb_ack_o;
endmodule // settings_bus
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