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Question:
a) Give three ways how to reduce cost in embedded systems.
b) What is a microcontroller? How is it different to a microprocessor?
c) Briefly comment on the "A" register and the "B" register of the 8051 microcontroller.
d) Explain when the "Timer Flag Interrupt" is called and what is the "Reset Interrupt".
Disadvantages
DI Disable Interrupts Instruction The interrupt enable flip flop is reset and all the interrupts of 8085 microprocessors except TRAP are disabled . the instruction form
block diagram of digital control system and explain each block
Q. The two-wattmeter method for measuring three-phase power is applied on a balanced wye-connected load, and the readings are given by W C = 836W and W A = 224 W If the system
Q. Explain Amplitude-shift keying? A carrier's amplitude is keyed between two levels (binary 1 and 0) in binary ASK. Figure shows the functions of a coherent ASK communication
Explain instruction sets of 8085. a) Data transfer group - MOV, MVI, LXI. b) Arithmetic group - ADD, SUB, INR. c) Branch group - JMP, JNZ, CALL. d) Logical group -
A quantizer has 130 quantum levels that exactly span the extremes of a symmetrically ?uctuating message with step size δv = 0.04 V. Determine the following: (a) |f(t)|max.
Develop and execute a program to analyze the circuit shown in Figure (a), and use PROBE for plotting v C (t).
Q. Explain Light-emitting diode? This is a reliable, rugged, and inexpensive semiconductor display device requiring about 10 mA of current flow for full illumination. An LED is
Q. The coil is placed so that its axis of revolution is perpendicular to a uniform field, as shown in Figure If the flux per pole is 0.02 Wb, and the coil, consisting of 2 turns, i
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