--------------------------------------------------------------------------
--------------------------------------------------------------------------
-- File Name : noise.v (see also encoder.v, decoder.v)
-- Author(s) : Paul R. Joslin
-- Affiliation : Laboratory for Digital Design Environments
-- Department of Electrical & Computer Engineering
-- University of Cincinnati
-- Date Created : June 1991
-- Introduction : Behavioral description of noise generator written
-- in a synthesiszable subset of VHDL. It is part
-- of the `Error Correction System'.
--
-- Source : Original HardwareC version obained from
-- the HLSW repository.
--
-- Modified For Synthesis by Jay(anta) Roy, University of Cincinnati.
-- Date Modified : Sept, 91.
--
-- Disclaimer : This comes with absolutely no guarantees of any
-- kind (just stating the obvious ...)
--
-- Acknowledgement : The Distributed Synthesis Systems research at
-- the Laboratory for Digital Design Environments,
-- University of Cincinnati, is sponsored in part
-- by the Defense Advanced Research Projects Agency
-- under order number 7056 monitored by the Federal
-- Bureau of Investigation under contract number
-- J-FBI-89-094.
--
--------------------------------------------------------------------------
--------------------------------------------------------------------------
-- Noise generator on the serial data stream
use Work.types.all;
entity noise is
port(error : in BIT;
encoder_out : in BIT;
decoder_in : out BIT);
end noise;
architecture noise_behavior of noise is
begin
procn: process
begin
decoder_in <= encoder_out xor error;
end process;
end noise_behavior;
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