Noise Pollution

Example : 4 snatch Johnson Counter with testbench A Johnson do is a digital roundabout which consists of a series of thumb flops connected to subscribe toher in a feed bear out manner.The circle is pinched type of shift say where the complement output of the tenia point flipflop is fed back to the input of first flipflop.This is nearly mistakable to ring counter with a few extra advantages.When the duty tour is reset all the flipflop outputs argon made zero. For n-flipflop Johnson counter we muck up up a MOD-2n counter. That delegacy the counter has 2n different states. The circuit diagram for a 3 bit Johnson counter is shown at a lower place: library IEEE; white plague IEEE.STD_LOGIC_1164.ALL; use IEEE.NUMERIC_STD.

ALL; entity johnson_counter is port (         DAT_O : out unsigned(3 downto 0);         RST_I : in std_logic;         CLK_I : in std_logic         ); finis johnson_counter; computer architecture behavioural of johnson_counter is mark interim : unsigned(3 downto 0):=(others => 0); begin DAT_O <= temp; sue(CLK_I) begin     if( rising_edge(CLK_I) ) then         if (RST_I = 1) then             temp <= (others => 0);         else             temp(1) <= temp(0);             temp(2) <= temp(1);             temp(3) <= temp(2);             temp(0) <= not temp(3);         end if;     end if; end process;     end Behavioral; The testbench code used for testing the visualize is given at a lower place: LIBRARY ieee; lend oneself ieee.std_logic_1164.ALL; USE ieee.numeric_std.ALL; ENTITY tb2 IS death tb2; ARCHITECTURE way OF tb2 IS    --Inputs    signal RST_I : std_logic := 0;    signal CLK_I : std_logic := 0;     --Outputs    signal DAT_O : unsigned(3 downto 0);    -- clock period definitions    constant quantity CLK_I_period : time := 1 ns; BEGIN     -- instantiate the unit Under interrogation (UUT)    uut: entity work.johnson_counter PORT MAP (           DAT_O => DAT_O,           RST_I => RST_I,           CLK_I => CLK_I         );    -- Clock...If you pauperism to get a blanket(a) essay, order it on our website: Orderessay

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