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

Define time sharing, Define Time Sharing. Time Sharing: Sharing of ...

Define Time Sharing. Time Sharing: Sharing of a computing resource among various users by means of multiprogramming and multi-tasking is termed as timesharing. By permittin

Differences between cisc and risc architectures, Question: a) What is ...

Question: a) What is the main difference between the Princeton and Harvard microprocessor architectures? b) State five main differences between CISC and RISC architectures?

Determine the object oriented principles, Determine the Object oriented pri...

Determine the Object oriented principles Many latest applications are being developed based on object oriented principles such as methods, classes, and inheritance. To fulfil

Shared memory model, In the shared-memory programming model, tasks share a ...

In the shared-memory programming model, tasks share a common address space, which they read and write asynchronously. Several mechanisms such as locks / semaphores may be used to c

Which is the slowest sorting procedure, The slowest sorting procedure is   ...

The slowest sorting procedure is    Bubble Sort is the slowest sorting process.

Explain about parity bit, Q. Explain about Parity bit? Parity bit is an...

Q. Explain about Parity bit? Parity bit is an error detection bit added to binary data such that it creates total number of 1's in the data either odd or even. For illustration

How many chips will be required in a microprocessor , A microprocessor uses...

A microprocessor uses RAM chips of 1024 × 1 capacity. (i) How many chips will be required and how many address lines will be connected to provide capacity of 1024 bytes. (ii) How

history of databases , Write a four-page paper how relational data solutio...

Write a four-page paper how relational data solution is applied to presnt Video Store business. 1.       Describe Relational Databases   2.       Write History of databases

Illustrate the accumulator architecture, Accumulator Architecture: An accu...

Accumulator Architecture: An accumulator is anespecially designated register which supplies one instruction operand and receives result. Instructions in such machines are usually

Binary floating-point number range, Q. Binary floating-point number range? ...

Q. Binary floating-point number range? Smallest Negative number   Maximum mantissa and maximum exponent     =    - (1 -2 -24 ) × 2 127   Largest negative number

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