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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.
In SDK – 86 kit 128KB SRAM and 64KB EPROM is provided on system and provision for expansion of another 128KB SRAM is given. The on system SRAM address starts from 00000H and that
Discuss its advantages over the other evaluation techniques. The expression tree is determined by using a post-order traversal of the expression tree as given here: 1. If such
Q. Registers used in IA-64 architecture ? Registers: The IA-64 architecture comprises a very generous set of registers. It has an 82-bit floating point as well as 64-bit inte
What is normal form? A normal form is a guideline for relational database tables that enhances data consistency. As tables satisfy higher levels of normal forms, they are less
Define UFD and MFD. In the two-level directory structure, every user has own user file directory (UFD). Every UFD has a same structure, but lists only the files of a single u
Draw the logic diagram of a full subtractor using half subtractors and explain its working with the help of a truth table Ans: Full Subtractor: It has to take care of repe
What are the Counters? 1. The Counter is a sequential circuit which consists of a set of flip flops connected in a appropriate manner to count the sequence of input pulses.
The next major set of tasks to tackle are delete and update. Version control systems typically version updates to a ?le and only store the differences between the ?les. Two system
State about the Internet services Internet services are provided automatically, in many other implementations the certificate is stored on a separate database or token such as
First Order Predicate Logic This is a more expressive logic because it builds on propositional logic by allowing us to use constants, predicates, variables, quantifiers and fun
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