Why does dma have priority over the cpu, Computer Engineering

Assignment Help:

Why does DMA have priority over the CPU when both request a memory transfer?

The data transfer monitored by DMA controller which is called as DMA channel. The CPU is included only at the starting and end of the transfer, when the CPU wishes to read or write a block of data, it issues a command to DMA Channel by sending read/write operation, address of I/O, number of words to be read or written, as DMA have priority over the CPU when both request a memory transfer.

 


Related Discussions:- Why does dma have priority over the cpu

Characteristics and features of client/server computing, What are the chara...

What are the characteristics and features of Client/Server Computing? Several of client/server computing architecture is listed below: a. It comprises a networked webs of sm

Design a bcd to seven segment decoder, Design a BCD to seven segment decode...

Design a BCD to seven segment decoder that accepts a decimal digit in BCS and generates the appropriate output for segments in display indicator. Ans: BCD-TO-seven-Segment

Describe arp message format in brief, Describe ARP message format in brief....

Describe ARP message format in brief.                             0                                        8                                      16

The pre-generated selection screen, With LDB one can change the pre-generat...

With LDB one can change the pre-generated selection screen to their needs Yes with LDB one can alter the pre-generated selection screen.

Micro processor code, Suppose that the working register W contains the valu...

Suppose that the working register W contains the value 0x4F, the register FSR contains the value 0x2B; the register with address 0x2B contains 0x2F and the instruction ADDWF INDF,

Software project planning, Software Project Planning In the previous da...

Software Project Planning In the previous days of computing software costs comprised a small % of overall computer based system cost. In order of magnitude error software cost

Explain what is dtmf signalling, Explain what is DTMF signalling. Dual ...

Explain what is DTMF signalling. Dual Tone Multi Frequency (DTMF) was initially introduced in 1963 with 10 buttons into Western Electric 1500 -type telephones. Dual Tone Multi

Explain multihomed host, Write short notes on the Multihomed host. A ho...

Write short notes on the Multihomed host. A host computer that connects to multiple networks is termed as multi-homed host. Multihoming is occasionally used to raise reliabilit

Show the characteristic of cache memory, Q. Show the characteristic of cach...

Q. Show the characteristic of cache memory? The essential characteristic of cache memory is its fast access time. So very little or no time should be wasted when searching for

How to create a new object order preference, 1. In an ASCII editor, make an...

1. In an ASCII editor, make an empty text file with the extension .ord. 2. Save the file in the Dat folder of the project. 3. Click To o l s > G UI R e c o r d O p t i o n s

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