Discuss dma operation in brief, Electrical Engineering

Assignment Help:

Discuss DMA operation in brief.

The fundamental idea of DMA is to transfer blocks of data directly among memory and peripherals. The data don't suffer the microprocessor but the data bus is involved. "Normal" transfer of one data byte engages in to 29 clock cycles. The DMA transfer needs only 5 clock cycles.

Today, DMA can transfer data as fast as 60 M byte per second. The transfer rate is restricted by the speed of peripheral and memory devices.

1787_8237 dma controller.png

8237 DMA controller


Related Discussions:- Discuss dma operation in brief

Analog Fundamentals, Module 1 Discussion: Application of operational Amplif...

Module 1 Discussion: Application of operational Amplifier

Find the force between the wires, Q. A magnetic force exists between two ad...

Q. A magnetic force exists between two adjacent, parallel current-carryingwires. Let I1 and I2 be the currents carried by the wires, and r the separation between them.

What is difference between 16 bit & 32 bit version of c/c++, What is the ma...

What is the main difference between 16 bit and 32 bit versions of C/C++ while using in line assembler. The 32-bit applications are written by using Microsoft Visual C/C++ for t

Compute the maximum electromagnetic power, Q. A four-pole dc machine with 7...

Q. A four-pole dc machine with 728 active conductors and 30mWb flux per pole runs at 1800 r/min. (a) If the armature winding is lap wound, find the voltage induced in the armatu

Node voltage method, (a) Carry out a topological analysis for the circuit s...

(a) Carry out a topological analysis for the circuit shown in Figure 1.     (i) Construct a graph for the circuit  (ii) State the different trees you can choose.    (b) Us

What is the purpose of segment registers in 8086, What is the purpose of se...

What is the purpose of segment registers in 8086? There are 4 segment registers present in 8086. They are 1. Code Segment (CS ) register 2. Data Segment (DS ) register

Alternater, if the prime mover input of an alternater connected directly t...

if the prime mover input of an alternater connected directly to an infinite bus in increased,then its?

Superposition theorem, how do you work it out if there are 3 sources in par...

how do you work it out if there are 3 sources in parallel?

Explain pentium processor has a superscalar architecture, 'Pentium processo...

'Pentium processor has a superscalar architecture'. Explain the meaning of the statement. The Pentium microprocessor is organized along with three execution units. Single execu

Introduction to electronics, Explain the difference between a microprocesso...

Explain the difference between a microprocessor and an embedded microcontroller

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