Define the dma controller interface, Electrical Engineering

Assignment Help:

Define the DMA controller interface.

A DMA controller interfaces along with a few peripherals which may request DMA. The controller chooses the priority of simultaneous DMA requests communicates along with the peripheral and the CPU, and gives memory addresses for data transfer. DMA controller generally used with 8088 is the 8237 programmable device.

The 8237 is actually a special-purpose microprocessor. Normally this appears as part of the system controller chip-sets. The 8237 is a 4-channel device type. All channels are dedicated to an exact peripheral device and able of addressing 64 K bytes section of memory.

1416_8237 microprocessor.png

8237 microprocessor


Related Discussions:- Define the dma controller interface

Gets parameter schematic, Open the GetSParameter schematic. You will need t...

Open the GetSParameter schematic. You will need to modify the design to include the biasing components. (Even at this stage I would recommend the use of models of real resistors th

Design the high-pass filter, Q. Design the high-pass filter shown in Figure...

Q. Design the high-pass filter shown in Figure (by determining C) to have a half-power frequency of 1 MHz.

Application platform requirement - gis technology, Software/Application Pla...

Software/Application Platform Requirement: GIS solutions would primarily consist of Database and Applications software. The application package should work in LAN/WAN/Interne

What is balanced discriminator, Q. What is balanced discriminator? A ba...

Q. What is balanced discriminator? A balanced discriminator with the corresponding frequency characteristics is depicted in Figure. The rising half of the frequency characteris

Norton equivalent circuit, Cointruct and simulate using multisim software a...

Cointruct and simulate using multisim software a series voltage regulator to supply 1A to a load at a constant voltage of 9V. The supply voltage to regulator is 15V±10%. The minimu

Advantages and disadvantages of aluminium, Discuss the advantages and disad...

Discuss the advantages and disadvantages of aluminium as compared to copper as a conductor of electricity. Advantages: Aluminium as a conductor of electricity as compared co

Determine the peak frequency deviation, If an FM signal is given by s FM (t...

If an FM signal is given by s FM (t) = 100 cos [2πf c t +100 m(τ ) dτ ] and m(t) is given in figure, sketch the instantaneous frequency as a function of time and determine the pea

R.h. corkscrew rule, R.h. corkscrew rule Note the direction of the flu...

R.h. corkscrew rule Note the direction of the flux is given by Maxwell's 'R.H. corkscrew rule' and that the flux lines are continuous Applying  Ampere's  Law  to  a  concentri

General, a single phase 120 volts, 60hertz supply is connected to a coil of...

a single phase 120 volts, 60hertz supply is connected to a coil of 200 turns wound round a toroidal magnetic core with a mean length 100cm and cross section 20cm square &relative p

Find dispersion relation for free electron, Find Dispersion Relation for Fr...

Find Dispersion Relation for Free Electron Question: Find the dispersion relation for a free electron, and, thus, observe the relation between its rest mass and effective ma

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