Explain about registers, Computer Engineering

Assignment Help:

Q. Explain about Registers?

A register is a group of flip-flops that store binary information and gates that controls when and how information is transferred to register. An n-bit register contains n flip-flops and stores n-bits of binary information. Two fundamental types of registers are: Shift register and Parallel registers.

A parallel register is one of simplest registers comprising a set of flip-flops which can be read or written concurrently. Figure demonstrates a 4-bit register with parallel input-output. Signal lines Io to I3 inputs to flip-flops that may be output of other arithmetic circuits such as multipliers so that data from different sources can be loaded in the register. It has one extra line known as clear line that can clear register completely.  This register is known as a parallel register as all bits of register can be loaded in a single clock pulse.  

778_Explain about Registers.png

Figure: 4-bit parallel register

A shift register is used for shifting data to left or right. A shift register operates in serial input-output mode it implies that data is entered in register one bit at a time from one end of register and can be read from other end as one bit at a time. Figure below demonstrates a 4-bit right shift register employing D logical shift functions.

568_Explain about Registers1.png

Figure: 4-bit right - shift register


Related Discussions:- Explain about registers

What is register set, What is Register Set Register Set:  Register set ...

What is Register Set Register Set:  Register set is used to keep immediate data during the implementation of instruction. This area of processor having of various registers.

What is the use of system.xml.xlinq.dll, System.XML.XLinq.dll has classes t...

System.XML.XLinq.dll has classes to provide functionality to use LINQ with XML.

Why do we need registers, Why do we need Registers? If t cpu is cycle...

Why do we need Registers? If t cpu is cycle time of CPU which is the time taken by CPU to execute a well-defined micro-operation employing registers and t mem is memory cycl

What are types of applets, There are two different parts of applets. Truste...

There are two different parts of applets. Trusted Applets and Untrusted applets. Trusted Applets are applets with predefined security and Untrusted Applets are applets without any

Explain circuit switching versus packet switching, Explain difference of Ci...

Explain difference of Circuit switching versus Packet switching. Within circuit switching an end-to-end path is to be establishing before any data can be sent. Previously a con

What are the 2 ieee standards for floating point numbers, What are the 2 IE...

What are the 2 IEEE standards for floating point numbers? 1.single 2.double

Define a structure, Define a structure. A structure having an ordered g...

Define a structure. A structure having an ordered group of data objects. Unlike the elements of an array, the data objects within a structure can have varied data types. Every

What do you mean by embedded system, It is a mixture of hardware and softwa...

It is a mixture of hardware and software to perform needed task

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd