Structure of input - output interface, Computer Engineering

Assignment Help:

Q. Structure of Input - Output Interface?

Due to complexity and number of external devices that I/O interface control, there is not any standard structure of I/O interface. Let's give a general structure to an I/O interfaces:

  • There is a requirement of I/O logic that must interpret and execute dialogue between processor and I/O interface. Thus there need to be control lines between I/O interface and processors.
  • Data line associating I/O interface to system bus should exist. These lines serve purpose of data transfer.
  • Data registers may behave as buffer between I/O interface and processor.
  • The I/O interface comprises logic specific to interface with every device that it controls.

396_Structure of Input - Output Interface.png

Figure: The General Structure of an I/O

Figure above is a typical figure of an I/O interface that additionally to all registers as defined above has status/control registers that are used to pass on status information or control information.


Related Discussions:- Structure of input - output interface

Differentiate between logical address and physical address, Differentiate b...

Differentiate between logical address and physical address. A logical address is the address of the data word or instruction as used by a program (it includes the use of base

Power and energy, Ask questiPower and EnergyQuestion 4Consider a processor ...

Ask questiPower and EnergyQuestion 4Consider a processor that runs at 2.5 GHz and 1 Volt. When running a given CPU-bound program,the processor consumes 100 W, of which 20 W is leak

Describe the working of operating system, Write the importance of operating...

Write the importance of operating system. Describe the working methodology of online and real-time operating system with the help of two examples of each.

Explain the working of a 1-to-16 Demultiplexer, Using a suitable logic diag...

Using a suitable logic diagram explain the working of a 1-to-16 de multiplexer. Ans. 1-to-16 Demultiplexer Working: A demultiplexer obtains in data from one line and directs this

Explain web service - .net component, Can you give an example of when it wo...

Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component? Services which help in stock trading by giving analysi

Describe the different types of frequency hoping, Question: (a) What ...

Question: (a) What are the main challenges for Mobile Computing? (b) What is the ISM band and what is particular about this frequency band? Name two wireless technologies

Explain the resolution of an ADC, Explain the Resolution of an ADC. ...

Explain the Resolution of an ADC. Ans. Resolution- It  is  the  smallest  possible  change  in  input  voltage  the same as  the  fraction  of percentage of the full s

Define the public and extrn directives- assembler directives, Define the PU...

Define the PUBLIC and EXTRN directives- Assembler directives PUBLIC and EXTRN directives are very significant to modular programming. PUBLIC used to declare that labels of data

What is machine.config, What is Machine.config?  Machine configuration ...

What is Machine.config?  Machine configuration file: The machine. config file contains settings that apply to the whole computer.  The machine.config, which can be found in the

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