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

Solid state, What are the fundamentals of solid states?

What are the fundamentals of solid states?

Newton raphson , hi can you help with newton raphson?

hi can you help with newton raphson?

Solid mensuration, reflections, journey about the subject solid mensuration...

reflections, journey about the subject solid mensuration

Pop psw instruction , POP PSW Instruction It is similar to  above pop...

POP PSW Instruction It is similar to  above pop  instruction but instead of normal  register  pairs it uses PSW  as its operand. Program status word  comprises of the content

Buck converter - power supplies , Buck Converter In buck  converters th...

Buck Converter In buck  converters the output  voltage is  always  less than the  input  voltage. The basic  circuit  of buck converter is shown  in figure. The operation of th

Magnetism, with the aid of the diagram explain the following rules that can...

with the aid of the diagram explain the following rules that can be used to determine the direction of magnetic fields around a current carrying conductor (1)cork screw rule (2)rig

Explain various functions of telephone switching systems, Q. Explain variou...

Q. Explain various functions of telephone switching systems. Ans: Functions of telephone switching systems are: (i)  Attending: The system should be continually monito

Ionic bonding, Ionic Bonding Instance: NaCl. Na (Z = 11) gives u...

Ionic Bonding Instance: NaCl. Na (Z = 11) gives up the outermost shell electron of it to Cl (Z=17) atom, so the crystal is build up of ions with the electronic structure

Automatic irrigation system on running solar power b, how to upload the pro...

how to upload the program on proteus soft ware by using personal computer?

Dtl and ttl logic circuits, Q. DTL AND TTL LOGIC CIRCUITs? Bipolar tran...

Q. DTL AND TTL LOGIC CIRCUITs? Bipolar transistorswere the first solid-state switching devices commonly used to implement digital logic circuits in the 1950s and 1960s. These c

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