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

Define user mode and kernel mode, Define user mode and Kernel mode Kern...

Define user mode and Kernel mode Kernel is a private mode in that no limitation is imposed on the kernel of system. Kernel may be use all the information of the processor, oper

Explain telnet, Explain Telnet Telnet is a Remote Login.

Explain Telnet Telnet is a Remote Login.

What is ai backgammon, This part looks at Berliner's program, two backprop ...

This part looks at Berliner's program, two backprop versions by Tesauro and a temporal difference process by Tesauro. This latter program is VERY good quality and has found strateg

Is strategy - information system, IS strategy - Information System As ...

IS strategy - Information System As an operations manager when attempting to navigate your organisation through the information landscape and make best use of the available sy

Differentiate between protection and security, Differentiate between protec...

Differentiate between protection and security. Operating system contains a collection of objects, software or hardware. All objects have a unique name and can be accessed by

Why generalization is very strong, Even while Generalization satisfies Stru...

Even while Generalization satisfies Structural, Interface, Behaviour properties. It is mathematically very strong, as it is Antisymmetric and Transitive. Antisymmetric: employe

Significance of xml in edi and electronic commerce, What is the significanc...

What is the significance of XML in EDI and electronic commerce?   XML has been defined as lightweight SGML XML shows great promise for its inherent ability to permit a " doc

Comparison between centralized and distributed spc, Explain the principles ...

Explain the principles of operation of centralized SPC and distributed SPC and compare their performance. All the control equipment is replaced with a single processor that mus

Explain abstract class, What is an interface and what is an abstract class?...

What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why?   Abstract classes are closely related to interfaces. They are classe

What is the last entry in all bdc tables, What is the last entry in all BDC...

What is the last entry in all BDC tables? In all BDC tables the last entry is to save the data by using the field name BDC_OKCODE and a field value of '/11'.

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