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

Explain management information base variables, Explain MIB (Management Info...

Explain MIB (Management Information Base) variables. MIB is a set of named items which an SNMP agent knows. To control or monitor a remote computer, a manager should fetch or s

What is external modems, Q. What is External Modems? External Modems: M...

Q. What is External Modems? External Modems: Modems externally associated to PC via a parallel or serial port and into a telephone line at the other end.  They can generally co

Online movie booking system using data structures, I want to know...if ther...

I want to know...if there is a program available in C code using data structure for online movie booking system

Create a sliding puzzle, As demonstrated in a simple manner in my Animated ...

As demonstrated in a simple manner in my Animated Tiles example, the purpose of this assignment is to use jQuery animations to develop a simple puzzle using DIV tags and styles. C

Physics, what is fresnel''s biprism?how it is used to determine wavelength ...

what is fresnel''s biprism?how it is used to determine wavelength of monochromatic source of light

Online teaching jobs, Dear, I''m an engineering post graduate in computer s...

Dear, I''m an engineering post graduate in computer science. I would like to work as online tutor. please suggest ideas. Thank You.

Microprocessor, how to stud for subject microprocessor

how to stud for subject microprocessor

What is an "on request field" statement, What is an "on request Field" stat...

What is an "on request Field" statement? ON REQUEST The ABAP/4 Module is known as only if the user has entered the value in the field value as the last screen display .Th

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