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Determine the salient features of a parallel programmable interface, 8255.
- Mode 0: A, B, C simple input or output level sensitive ports
- Mode 1: A, B input or output ports with strobe control in C
- Mode 2: A is bidirectional with control/handshake in B and C
A device, usually linked to a serial port of a computer, that transfer data over regular phone lines. Modem stands modulator demodulator; it changes a digital stream of data into s
Illustrate the term EDI Trading Patterns? EDI Trading Patterns are illustrated below: a. Hubs and Spokes: Several of the prime movers into the adoption of Electronic Da
Q. Explain Simple Interfacing? The following is a sample of the coding, used for procedure interfacing: PUBLIC CUROFF _TEXT SEGMENT WORD PUBLIC 'CODE'
The term addressing mode is a technique of stating the input and output of an instruction; it is termed the effective address. There are 6 effective addresses in the 68HC11 set of
Q. Explain Logical shifts with example? Logical shifts LOGICAL SHIFT LEFT and LOGICAL SHIFT RIGHT insert zeros to end bit position and other bits of a word are shifted left or
Why data bus is bidirectional and address bus is unidirectional in most microprocessors? The data bus is bidirectional because the data bus has to transfer data among the CPU a
Define memory cycle time? It is the time delay needed between the initiations of two successive memory operations. Eg. The time among two successive read operations.
Explain about the term false path? How it find out in circuit? What the effect of false path in circuit? By timing all the paths into the circuit the timing analyzer can find o
Q. Total number of registers in a CPU? Factors to consider when choosing total number of registers in a CPU are: CPU can access registers faster than it can access m
What is the difference between wire and reg Wire Wire is used for designing combinational logic, as we all know that this type of logic cannot store a value. As you can
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