Header Ads

4X1 MUX using UDP Verilog Code

4X1 MUX using UDP



 A multiplexer or data selector is a logic circuit  that accepts several data inputs and allows only
one of them at a time to get through the output.  



User Defined Primitives can describe both combinational  and sequential circuits. The behavioral description is provided as a truth table.
The UDP declaration starts with the keyword primitive and ends with the keyword endprimitive. A port list, an output port declaration and input ports declaration are similar to their equivalents in a module declaration.



 4X1 MUX  using UDP Verilog Code



primitive mux_udp(out,s0,s1,i0,i1,i2,i3);
output out;
input s0,s1;
input i0,i1,i2,i3;
table

//s0  s1  i0   i1   i2    i3  out;
  0    0     0    ?    ?    ?   0;
  0     0      1      ?      ?      ?    1;
  0     1      ?      0      ?       :   0;
  0     1      ?      1       ?     ?  :   1;
  1     0      ?      ?       0      ?  :  0;
  1     0      ?      ?      1       ?  :  1;
  1   1       ?     ?      ?       0  :   0;
  1   1       ?   ?       ?       :  1;

endtable
endprimitive
module UDP_MUX(out,s0,s1,i0,i1,i2,i3); output out;
input s0,s1; input i0,i1,i2,i3;
mux_udp u1(out,s0,s1,i0,i1,i2,i3);
endmodule  




Output: 


Post a Comment

0 Comments