pluto_hdl_adi/library/common/ad_iobuf.v

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// ***************************************************************************
// ***************************************************************************
// Copyright (C) 2014-2023 Analog Devices, Inc. All rights reserved.
//
// In this HDL repository, there are many different and unique modules, consisting
// of various HDL (Verilog or VHDL) components. The individual modules are
// developed independently, and may be accompanied by separate and unique license
// terms.
//
// The user should read each of these license terms, and understand the
2018-03-14 14:45:47 +00:00
// freedoms and responsibilities that he or she has by using this source/core.
//
// This core is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
// A PARTICULAR PURPOSE.
//
// Redistribution and use of source or resulting binaries, with or without modification
// of this file, are permitted under one of the following two license terms:
//
// 1. The GNU General Public License version 2 as published by the
// Free Software Foundation, which can be found in the top level directory
// of this repository (LICENSE_GPL2), and also online at:
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// OR
//
// 2. An ADI specific BSD license, which can be found in the top level directory
// of this repository (LICENSE_ADIBSD), and also on-line at:
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
// This will allow to generate bit files and not release the source code,
// as long as it attaches to an ADI device.
//
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module ad_iobuf #(
parameter DATA_WIDTH = 1
) (
input [(DATA_WIDTH-1):0] dio_t,
input [(DATA_WIDTH-1):0] dio_i,
output [(DATA_WIDTH-1):0] dio_o,
inout [(DATA_WIDTH-1):0] dio_p
);
genvar n;
generate
for (n = 0; n < DATA_WIDTH; n = n + 1) begin: g_iobuf
assign dio_o[n] = dio_p[n];
assign dio_p[n] = (dio_t[n] == 1'b1) ? 1'bz : dio_i[n];
end
endgenerate
endmodule