What is memory interleaving, Computer Engineering

Assignment Help:

Q. What is Memory Interleaving?

In this scheme main memory is splitted in 'n' equal-size modules and CPU has separate Memory Base register and Memory Address Register for every memory module. Additionally CPU has 'n' instruction register and a memory access system.  When a program is loaded in main memory its successive instructions are stored in successive memory modules. For illustration if n=4 and four memory modules are M1, M2, M3, and M4 then 1st instruction would be stored in M1, 2nd in M2, 3rd in M3, 4th in M4, 5th in M1, 6th in M2 and so on.  Now at the time of execution of program when processor issues a memory fetch command then memory access system creates n consecutive memory addresses and places them in Memory Address Register in right order. A memory read command interprets all 'n' memory modules concurrently and retrieves 'n' consecutive instructions as well as loads them in the 'n' instruction registers. So every fetch for a new instruction results in loading of 'n' consecutive instructions in 'n' instruction registers of CPU. Because instructions are generally executed in sequence in which they were written, availability of N successive instructions in CPU avoids memory access after every instruction execution and total execution time speeds up. Apparently fetch successive instructions aren't useful when a branch instruction is encountered at the time of course of execution. This is because they need new set of 'n' successive instructions, overwriting previously stored instructions that were loaded however some of which weren't executed. The method is very efficient in minimising memory-processor speed mismatch since branch instructions don't take place often in a program.

Figure below explains memory interleaving architecture. The Figure shows a 4- way (n=4) interleaved memory system.

670_What is Memory Interleaving.png

Figure: A 4-way Interleaved Memory


Related Discussions:- What is memory interleaving

De moiver theorem, application of de moiver theorem in software engineering...

application of de moiver theorem in software engineering

What is sisd, What is SISD?  Single Instruction stream, Single Data str...

What is SISD?  Single Instruction stream, Single Data stream (SISD) shows the organization of a single computer having a control unit, a processor unit, and a memory unit. Inst

What is interaction modeling, What is interaction modeling? Interaction...

What is interaction modeling? Interaction model explains interactions within a system. The interaction model explains how objects interact to produce useful results. It is a ho

Define realization of one flip flop using other flip flops, Define Realizat...

Define Realization of one flip flop using other flip flops? It is probable to implement a flip flop circuit using any other circuit. Universal block diagram is shown below.

Explain about the term e-brokerage briefly, Explain about the term E-broker...

Explain about the term E-brokerage briefly. An e-brokerage is an investment house which allows you to buy and sell stocks and acquire investment information through its Web sit

Arterial puncture - specimen collection, Arterial puncture - Specimen colle...

Arterial puncture - Specimen collection: Arterial puncture:    this requires special skill and usually performed only by physician. The preferred site is radial arter

List the steps needed to perform page replacement, List the steps needed to...

List the steps needed to perform page replacement. The steps required to perform page replacement are: 1. Find out which page is to be removed from the memory. 2. Perfor

DSP, Assignment of Analog to digital Ssignal Processing

Assignment of Analog to digital Ssignal Processing

Types of validation controls provided by asp.net, Types of validation contr...

Types of validation controls provided by ASP.Net There are following types of validation controls provided by ASP.Net: 1. Required Field Validator 2. Compare Validator

Luminous Jewels - The Polishing Game, Byteland county is very famous for lu...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

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