Explain dma and interrupt breakpoints, Computer Engineering

Assignment Help:

Q. Explain about DMA and Interrupt Breakpoints?

DMA interface transfers complete block of data one word at a time directly to or from memory without going through processor. When transfer is complete, DMA interface transmits an interrupt signal to processor. So in DMA processor involvement can be restricted at beginning and end of transfer that can be displayed as in figure above. However question is when should DMA take control of bus?

For this we would recall phenomenon of execution of an instruction by processor. Figure below displays five cycles for an instruction execution. Figure also displays five points where a DMA request can be responded to and a point where interrupt request can be responded to. Please note an interrupt request is acknowledged only at one point of an instruction cycle and that is at interrupt cycle.  

2496_Explain DMA and Interrupt Breakpoints.png

Figure: DMA and Interrupt Breakpoints


Related Discussions:- Explain dma and interrupt breakpoints

The interface chip design, This is an embedded system that involves the int...

This is an embedded system that involves the integration of hardware and software design stages. It consists of the user interface (keypads and LCD display) and two Peripheral Inte

Unification algorithm - artificial intelligence, Unification Algorithm - Ar...

Unification Algorithm - Artificial intelligence: To merge two statements, we should get a substitution which forms the two sentences similar. Remember that we write V/T to sign

Describe the booch methodology, Object Oriented Analysis and Design 1. ...

Object Oriented Analysis and Design 1. What are the advantages of object-oriented systems? 2. Describe the Booch Methodology. 3. Justify that UML is a language for modeli

What is input - output instructions, Q. What is Input - Output Instructions...

Q. What is Input - Output Instructions? An I/O instruction is stored in memory of computer and is fetched as well as executed by processor producing an I/O-related command for

Conversion of decimal number 25.5 into binary number, Conversion of decimal...

Conversion of decimal number 25.5 into binary number Ans. There is integer part is 25 and fractional part is 0.5.  Firstly convert the integer part 25 in its equal to binary numb

State about CSMA/CA, State about CSMA/CA It belongs to a class of proto...

State about CSMA/CA It belongs to a class of protocols known as multiple access methods. CSMA/CA  stands  for:  Carrier  Sense  Multiple  Access  with  Collision Avoidance.  In

How can we specify file transfer in a web page, Can we specify file transfe...

Can we specify file transfer in a Web page? Explain with the help of suitable example. Yes, file transfer can be given in a web page. The first field within a URL gives a proto

Evaluate speed of disk drive, Q. Evaluate Speed of disk drive? Drive S...

Q. Evaluate Speed of disk drive? Drive Speed: Amount of information which can be transferred in or out of memory in a second is called as disk drive speed or data transfer ra

Health care professional, Overall, Mr. X is an intelligent and high-functio...

Overall, Mr. X is an intelligent and high-functioning man with good psychological, social, and occupational functioning. The test battery did not reveal any difficulties that warra

Define process control block, Define Process Control Block (PCB). Pr...

Define Process Control Block (PCB). Process Control Block (PCB): Information related with each process is stored into Process control Block. a)      Process state b)

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