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Q: What is the structural VHDL program for 8 to 1 multiplexer?
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What is VHDL program for 64 to 1 multiplexer using four 4 to 1 multiplexers?

Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.


What is the basics of VHDL?

VHDL is a hardware description language. You can describe the hardware in three different ways using VHDL. 1. dataflow model 2. behavioral model 3. structural model


What is a vhdl gold model?

Vhdl has got three models - programming styles. 1. data flow model 2. behavioral model 3. structural model.


What is meaning of Test Benches in VHDL?

After compiling a hardware description language like VHDL, it is required to apply inputs to the program in order to obtain out puts. Applying the inputs involves initial conditions. As the systems designed using VHDL are electronic, the initial conditions plays a vital role. Hence, all these conditions along with the information as to where the input is expected to change from 1 to 0 or 0 to 1 is provided to the VHDL program. This is done in the form of a wave or another VHDL program. These are called VHDL test benches. In other words, test benches are the means of applying inputs to VHDL program.


What is VHDL program for 2 to 1 multiplexer?

library IEEE;use IEEE.STD_LOGIC_1164.ALL;use IEEE.STD_LOGIC_ARITH.ALL;use IEEE.STD_LOGIC_UNSIGNED.ALL;entity mux2x1 isPort ( i : in STD_LOGIC_VECTOR (1 downto 0);s : in STD_LOGIC;y : out STD_LOGIC);end mux2x1;architecture df of mux2x1 isbeginwith s selecty


How can you write a VHDL code for full adder using two half adders?

Since a fulladder can be obtained by using 2 halfadders & 1 OR gate.....so we have to call an halfadder program as well as an OR program......this can be implemented easily with the help of structural model rather than dataflow and behavoioural model


What is strobe input in multiplexer?

It is the enable line. Used to enable the multiplexer to function. For low enable multiplexers, strobe is set to 0 to enable the multiplexer whereas in high enable multiplexers, it is set 1 to enable the multiplexer.


How many address lines are there in a 16 to 1 multiplexer?

20 address line available in 16 to 1 multiplexer 16 for input lines and 4 will be selection lines.


How do you construct half adder using 2 1 multiplexer?

Use the multiplexer to choose the correct output based on the inputs (use the truth table).


Is Multiplexer acts as not gate?

f = ~s.a + s.b , thus is the function for a multiplexer. let a not gate with input x and output y. set a = 1 and b =0 to get a not gate. y = ~x.1 + x.0


What are the data used in VHDL?

VHDL is a hardware description language which is used to describe digital circuits or systems. The data involved digital systems is logical data i. e. 0 or 1. Hence, VHDL uses logical data as input and provides the same type of data in output.


How Design a 3 input AND gate using 2 by 1 Multiplexer only?

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