How to input to circuit, Computer Engineering

Q. How to input to circuit?

  • Register A bits as a0, a1, a2 and a3 in the corresponding X bits of the Full Adder (FA).
  • Register B bits as given in the Figure above as in the corresponding Y bits of FA.
  • Please consider every bit of register A and register B is fed to separate full adder unit.
  • Please also note that every one of the four inputs from A are applied to X inputs of binary adder and every of the four inputs from B are associated to the data inputs of multiplexers. It means that A input directly goes to adder though B input can be manipulated by the Multiplexer to create a number of different input values as shown in the figure above. B inputs through multiplexers are controlled by two selection lines S1 and S0. So using various combinations of S and S we can select data bits of B, complement of B, 0word, or word having All 1's.

The input carry Cin that can be equal to 0 or 1 goes to carry input of the full adder in least significant position. Other carries are cascaded from one phase to the subsequent.  Logically it is same as that of addition performed by us. We do pass carry of lower digits addition to higher digits. The output ofbinary adder is determined from the below arithmetic sum:

 

 D = X + Y + Cin

  OR 

 D = A + Y + Cin

 

By controlling value of Y with the two selection lines S1and S0 and making Cin equal to 0 or 1 it's possible to implement eight arithmetic micro-operations listed in truth table.

485_How to input to circuit.png

Figure: Arithmetic Circuit Function Table

Posted Date: 7/27/2013 3:34:25 AM | Location : United States







Related Discussions:- How to input to circuit, Assignment Help, Ask Question on How to input to circuit, Get Answer, Expert's Help, How to input to circuit Discussions

Write discussion on How to input to circuit
Your posts are moderated
Related Questions
State about the Internet services Internet services are provided automatically, in many other implementations the certificate is stored on a separate database or token such as

Next add a layout cell for the Learn More About graphic. 1.  In Objects panel, click the Draw Layout Cell icon. 2.  In Document window, draw a new cell in the space below nav

Differentiate between intranet and internet Some comparisons between intranet and internet include: -  INTERNET is INTERnational NETwork -  An INTRANET is INTernal Restri

What is pipelining? What are the various hazards encountered in pipelining?  Explain in detail. The major characteristics of a pipeline are: a) Pipelining cannot be exe

Explain clearly the four stages in the Rapid Application Development

State the Protected mode interrupt In protected mode, interrupts have exactly same assignments just like in real mode though the interrupt vector table is different.  Instead

A call processor in an exchange requires 120 ms to service a complete call. What is the BHCA rating for the processor? If the exchange is capable of carrying 700 Erlangs of traffic

Explain Formats supported in Linux for executable programs. Linux supports two formats for executable programs: a. Out-binary format b. ELF - dynamic libraries

Define memory cell? A memory cell is capable of storing single bit of information. It is usually organized in the form of an array

6 bit magnitude comparator