Compare memory mapped i/o with i/o mapped i/o, Computer Engineering

Assignment Help:

Compare memory mapped I/O with I/O mapped I/O.

Memory Mapped I/O Scheme: In this scheme there is only one address space. Address space is stated as all possible addresses that microprocessor can generate. Some addresses are allocated to memories and some addresses to I/O devices. An I/O device is also treated just like a memory location and one address is assigned to it. In this scheme all the data transfer instructions of microprocessor can be used for both memory and I/O device. This scheme is suitable for a small system.

In I/O mapped I/O scheme addresses assigned to memory locations can also be assigned to I/O devices. As the same address may be assigned to a memory location or an I/O device, microprocessor should issue a signal to distinguish whether the address on address bus is for a memory location or an I/O device.

 


Related Discussions:- Compare memory mapped i/o with i/o mapped i/o

By which transport protocol used, The transport protocol used by TFTP (Triv...

The transport protocol used by TFTP (Trivial File Transfer Protocol) is? The transport protocol used through Trivial File Transfer Protocol is UDP.

Find out the excess code of decimal number, The excess 3 code of decimal nu...

The excess 3 code of decimal number 26 is ? Ans. (26) 10 in BCD is (00100110) BCD Add 011 to all BCD 01011001 for excess - 3

Distinguish between an agent system and an expert system, Problem : (a)...

Problem : (a) The concept of an agent is generally defined by listing the properties that agents exhibit. Identify and describe the properties that you would associate with th

System for an online furniture shop, As an XML expert you are needed to mod...

As an XML expert you are needed to model a system for an online furniture shop. After an interview with the shop manager you have the certain information: The detail of th

Hrm, hrm digrams

hrm digrams

Define the refresh rates and frame rate, Q. Define the Refresh Rates and fr...

Q. Define the Refresh Rates and frame rate? A special circuit known as the Video Controller scans video memory one row at a time and reads data value at each address sending th

Display data in the combo box, Which property on a Combo Box do you set wit...

Which property on a Combo Box do you set with a column name, prior to setting the Data Source, to display data in the combo box? ComboBox.DataValueField = "ColumnName" When

How to apply color and style, Q. How to Apply Color and Style? 1.  In f...

Q. How to Apply Color and Style? 1.  In first text description layout cell, select heading text from the word "Fly" through the word "Mountains." 2.  In Property inspector,

How do you make an image clickable in HTML, How do you make an image clicka...

How do you make an image clickable in HTML? Give an example. To create an image or text clickable hyperlinks are used, that use the and tags. Such tag has different paramet

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