Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Demonstrate how a typical DMA controller can be interfaced to an 8086/8085 based maximum mode system.
For 8088 in maximum mode:
The RQ/GT0 and RQ/GT1 pins are used to issue DMA request and receive acknowledge signals. Sequence of events of a typical DMA process
1) Peripheral asserts one of the request pins for example RQ/GT1 or RQ/GT0 (RQ/GT0 has higher priority)
2) 8088 completes its current bus cycle and enters into a HOLD state
3) 8088 grants the right of bus control by asserting a grant signal via the same pin as request signal.
4) DMA operation starts
5) Upon completion of the DMA operation, peripheral asserts the request/grant pin again to relinquish bus control.
Q. Code Density and Smaller Faster Programs? Memory was very expensive in older computer. So there was a need of less memory utilization, which is it was cost effective to have
E ngaged tone is generated in the: (A) Telephone instrument of calling subscriber (B) Telephone instrument of called subscriber (C) Exchange (D) Repeater
Q. Explain the Instruction Decode? Instruction Decode: This phase is performed under control of Control Unit of computer. The Control Unit determines the operation which is t
sadasdasd
Knowledge Representation: To recap, we now have some characterizations of "AI", that when an "AI" problem arises, you will be able to put all into context exactly, find the co
Explain about unix file system architecture
What is the need of a hybrid in telephone networks? Digital exchanges need receive and transmit signals upon separate two-wire circuits. It calls for two-wire to four-wire con
Why cyclomatic complexity is important? Cyclomatic complexity is computed using a graph that verifies the control flow of the program. The nodes of the graph correspond to the
Sir,wish to receive guidance from you how to join in Aeronautical Engineering after Bsc Computer Science. I am a Girl.Interested to work in AE field, it will be better to use in co
One of the very useful things about Internet is that it enables almost instantly exchange of electronic message (e-mail) across the worlds. E-mail is a standard as well as popular
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd