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

Illustrate the state diagrams of dynamic modelling, Dynamic modelling: stat...

Dynamic modelling: state diagrams A state diagrams allow you to further explore operations and attributes which need to be defined for an object. They comprises of sets of sta

Proof by contradiction, Proof by Contradiction: Now for forward chaini...

Proof by Contradiction: Now for forward chaining and backward chaining both have drawbacks. But another approach is to think about proving theorems by contradiction. So we can

Types of addressing modes in assembly language, Types of Addressing Modes: ...

Types of Addressing Modes: Each instruction of a computer mentions an operation on certain data. There are many ways of specifying address of the data to be operated on. These

#microprocessor, Program to transfer 10 byte of data from DMS to EMS using ...

Program to transfer 10 byte of data from DMS to EMS using 8086 instructions

Explain communications and synchronization, Communications Parallel t...

Communications Parallel tasks normally have to exchange data. There are various manners in which this can be achieved like over a network or through a shared memory bus. The

Explain about wildcard character in dos, Q. Explain about wildcard characte...

Q. Explain about wildcard character in DOS? Sometimes you may like to list files having similar names. Let as suppose that these files are present in a root directory of drive

Explain step by step switching system with neat diagram, With the help of a...

With the help of a neat diagram explain a step by step switching system. Configuration of a step by step switching system: A step by step switching system may be constr

State the advantages of bespoke software, State the advantages of Bespoke ...

State the advantages of Bespoke Software -  specifically designed for application and hence more efficient and will only contain the features wanted; as it will be devoid of

Boiler troubles, Differences between internal and external treatment in boi...

Differences between internal and external treatment in boiler

Identify the main enhancements brought along by tkip, Question: (a) Id...

Question: (a) Identify the four main enhancements brought along by TKIP on WPA to solve the problems in WEP. (b) The term WarDriving has been frequently used while talking

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