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

Power distribution, 1.  Establish importance of Distribution Planning with ...

1.  Establish importance of Distribution Planning with help of suitable example.     2.  Explain different distribution planning methods.       3.Explain the six level interv

#boiler troubles, Ask question #Minimum 300 words accepted#

Ask question #Minimum 300 words accepted#

Explain the working of a depletion type mosfet, Q. With a cross sectional v...

Q. With a cross sectional view, explain the working of a depletion type MOSFET Draw a biasing amplifier circuit DEPLETION-TYPE MOSFET: Two types of FETs: JFETs and MOSFETs. MOS

Stator voltage control methods - motor control , Stator Voltage Control Met...

Stator Voltage Control Methods By  controlling  the applied voltage  the speed  of an  induction motor  can be  controlled. Since  the output  torque of 3-? induction motor  i

Structure of bipolar junction transistor, Structure of Bipolar junction tra...

Structure of Bipolar junction transistor:  A BJT contains three differently doped semiconductor regions that are: emitter region, base region and collector region. These regio

Mvi move immediate instruction , MVI Move Immediate  Instruction This...

MVI Move Immediate  Instruction This form  of the instruction is used to copy 8bit  data ( specified  in the  instruction )  directly  into the  register or memory  pointed by

Explain how to represent power lines, Explain How to Represent Power Lines?...

Explain How to Represent Power Lines? The equivalent circuit of a power line depends on the length of the line and on the accuracy of the model required. In general, any power

Amplifier, what is one common applicable for CB amplifier

what is one common applicable for CB amplifier

Dc machine, why armature lamination notched in outer periphery

why armature lamination notched in outer periphery

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