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.
The Concept of Process Informally, a method is a program in execution, behind the program has been loaded in the main memory. However, a method is more than just a program code
Q. Ready and Standard mode for point-to-point message passing? Ready mode: Transmitting can be started only if matching receive has already been initiated. Standard mode: M
Q. What is microcomputer system? The microcomputer has a single microprocessor and a number of RAM and ROM chips as well as an interface unit which communicates with several ex
Disadvantages of Stateful Multi-Layer Inspection A firewall such as the SMLI remains completely transparent to both users and applications. Consequently, SMLI firewall does no
Global variables are accessible only to the batch program while external variables can be referenced from any batch program residing in the similar system library.
In binary counter the flip flop of lowest order position is complemented with each pulse. This means that JK input position must be maintained with logic one
What is a file? A file is a named collection of related information that is recorded on secondary storage. A file having either programs or data. A file has sure "structure" b
Applications of recursion theorem? 1. ATM is undecidble. 2. Fixed point theorem. 3. MINTM is not Turing recognisable
Q. Explain working of DotMatrix or InkJet Printers? Three major issues consider the quality of characters generated by DotMatrix/InkJet Printers: - Number of dots in the matrix
Conventionally software has been written for serial computation in that programs are written for computers which have a single Central Processing Unit (CPU). Here the problems are
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