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- Vhdl Code
- Vhdl Code For 1 To 4 Demultiplexer Using Structural Modelling
- Vhdl Multiplexer Code
- Vhdl Code For 1 To 4 Demultiplexer Using Dataflow Modelling
Design of 4 to 1 Multiplexer using if-else statement (VHDL Code). Design of 4 to 1 Multiplexer using if - else statement (Behavior Modeling Style)- Output Waveform: 4 to 1 Multiplexer VHDL. To design a 4:1 MULTIPLEXER in VHDL in Dataflow style of modelling and verify. Code: library ieee; use ieee.stdlogic1164.all; entity mux4 is port.
Vhdl Code
Vhdl Code For 1 To 4 Demultiplexer Using Structural Modelling
-- inputs: 1-bit sel (selector), 4-bit X, 4-bit Y
-- outputs: 4-bit m
LIBRARY ieee;
USE ieee.std_logic_1164.all;
entity MUX8_4 is
PORT( sel: in bit;
X, Y: in bit_vector(3 downto 0);
m: out bit_vector(3 downto 0));
end MUX8_4;
architecture logic of MUX8_4 is
component MUX4_2 is
PORT( sel, X0, X1, Y0, Y1: in bit;
m0, m1: out bit);
end component;
begin
mux4_2_inst0 : MUX4_2
PORT MAP( sel => sel, X0 => X(0), X1 => X(1), Y0 => Y(0), Y1 => Y(1),
m0 => m(0), m1 => m(1));
mux4_2_inst1 : MUX4_2
PORT MAP( sel => sel, X0 => X(2), X1 => X(3), Y0 => Y(2), Y1 => Y(3),
m0 => m(2), m1 => m(3));
end logic;
Verilog Code for 1 to 4 DEMUX | 1 to 4 DEMUX Verilog Code
Vhdl Multiplexer Code
This page of Verilog source code section covers 1 to 4 DEMUX Verilog code.The block diagram and truth table of 1 to 4 DEMUX Verilog code is also mentioned.
Block Diagram of 1 to 4 DEMUX
Truth Table of 1 to 4 DEMUX
1 to 4 DEMUX Verilog code
input a_in;
input [1:0] sel;
output [3:0] y_out;
reg [3:0] y_out;
always @(a_in, sel)
begin
case (sel)
2'b00:begin y_out[0]=a_in; y_out[1]= 1'b0;
y_out[2]= 1'b0;y_out[3]=1'b0; end
2'b01: begin y_out[0]= 1'b0;y_out[1]=a_in;
y_out[2]= 1'b0;y_out[3]=1'b0; end
2'b10: begin y_out[0]= 1'b0;y_out[1]=1'b0;
y_out[2]=a_in; y_out[3]=1'b0; end
2'b11: begin y_out[0]= 1'b0; y_out[1]= 1'b0;
y_out[2]=1'b0;y_out[3]=a_in; end
default: y_out=3'b000;
endcase
end
endmodule
USEFUL LINKS to VHDL CODES
Refer following as well as links mentioned on left side panel for useful VHDL codes.
D Flipflop
T Flipflop
Read Write RAM
4X1 MUX
4 bit binary counter
Radix4 Butterfly
16QAM Modulation
2bit Parallel to serial
Vhdl Code For 1 To 4 Demultiplexer Using Dataflow Modelling
USEFUL LINKS to Verilog Codes
Following are the links to useful Verilog codes.
Low Pass FIR Filter
Asynchronous FIFO design with verilog code
D FF without reset
D FF synchronous reset
1 bit 4 bit comparator
All Logic Gates
RF and Wireless tutorials
- Vhdl Code
- Vhdl Code For 1 To 4 Demultiplexer Using Structural Modelling
- Vhdl Multiplexer Code
- Vhdl Code For 1 To 4 Demultiplexer Using Dataflow Modelling
Design of 4 to 1 Multiplexer using if-else statement (VHDL Code). Design of 4 to 1 Multiplexer using if - else statement (Behavior Modeling Style)- Output Waveform: 4 to 1 Multiplexer VHDL. To design a 4:1 MULTIPLEXER in VHDL in Dataflow style of modelling and verify. Code: library ieee; use ieee.stdlogic1164.all; entity mux4 is port.
Vhdl Code
Vhdl Code For 1 To 4 Demultiplexer Using Structural Modelling
-- inputs: 1-bit sel (selector), 4-bit X, 4-bit Y
-- outputs: 4-bit m
LIBRARY ieee;
USE ieee.std_logic_1164.all;
entity MUX8_4 is
PORT( sel: in bit;
X, Y: in bit_vector(3 downto 0);
m: out bit_vector(3 downto 0));
end MUX8_4;
architecture logic of MUX8_4 is
component MUX4_2 is
PORT( sel, X0, X1, Y0, Y1: in bit;
m0, m1: out bit);
end component;
begin
mux4_2_inst0 : MUX4_2
PORT MAP( sel => sel, X0 => X(0), X1 => X(1), Y0 => Y(0), Y1 => Y(1),
m0 => m(0), m1 => m(1));
mux4_2_inst1 : MUX4_2
PORT MAP( sel => sel, X0 => X(2), X1 => X(3), Y0 => Y(2), Y1 => Y(3),
m0 => m(2), m1 => m(3));
end logic;
Verilog Code for 1 to 4 DEMUX | 1 to 4 DEMUX Verilog Code
Vhdl Multiplexer Code
This page of Verilog source code section covers 1 to 4 DEMUX Verilog code.The block diagram and truth table of 1 to 4 DEMUX Verilog code is also mentioned.
Block Diagram of 1 to 4 DEMUX
Truth Table of 1 to 4 DEMUX
1 to 4 DEMUX Verilog code
input a_in;
input [1:0] sel;
output [3:0] y_out;
reg [3:0] y_out;
always @(a_in, sel)
begin
case (sel)
2'b00:begin y_out[0]=a_in; y_out[1]= 1'b0;
y_out[2]= 1'b0;y_out[3]=1'b0; end
2'b01: begin y_out[0]= 1'b0;y_out[1]=a_in;
y_out[2]= 1'b0;y_out[3]=1'b0; end
2'b10: begin y_out[0]= 1'b0;y_out[1]=1'b0;
y_out[2]=a_in; y_out[3]=1'b0; end
2'b11: begin y_out[0]= 1'b0; y_out[1]= 1'b0;
y_out[2]=1'b0;y_out[3]=a_in; end
default: y_out=3'b000;
endcase
end
endmodule
USEFUL LINKS to VHDL CODES
Refer following as well as links mentioned on left side panel for useful VHDL codes.
D Flipflop
T Flipflop
Read Write RAM
4X1 MUX
4 bit binary counter
Radix4 Butterfly
16QAM Modulation
2bit Parallel to serial
Vhdl Code For 1 To 4 Demultiplexer Using Dataflow Modelling
USEFUL LINKS to Verilog Codes
Following are the links to useful Verilog codes.
Low Pass FIR Filter
Asynchronous FIFO design with verilog code
D FF without reset
D FF synchronous reset
1 bit 4 bit comparator
All Logic Gates
RF and Wireless tutorials
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