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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".
In a certain chemical-processing plant, a liquid chemical is used in a manufacturing process. The chemical is stored in three different tanks. A level sensor in each tank produces
15 cells with emf for every cell are 1.5V and internal resistance 0.3Ω is linked in parallel. Calculate the value of current flow if the external resistance, 5Ω is linked to them.
Explain RS232C Standard. RS232C: 1. Standard described for asynchronous communications where there is given timing among data bits and no fixed timing among the characters
Hall Effect is associated with (A) Conductors. (B) Semiconductors. (C) Thermistors. (D)Solders. Ans: Hall Effect is associated with semiconductors.
The five stages of DLX pipeline is:- ? Operand location ? Number of explicit operands per instruction ? Operand storage in the CPU ? Operations ? Type and size of o
operation of Shaded-pole motors
outline what three features you would add (choose the three that you feel would be most advantageous) to the 16 bit version of the processor in order to enhance its power.
Explain RS422A standard. RS422A: 1. Date Rate: 10 Mbits per second 2. Driving capability up to 4000ft and 10 receivers 3. This is Differential standard that is- a
a. Describe the memory allocation schemes in an embedded system. Also give a short-note on extended memory. (6) b. Consider a byte - addressable computer with 16 - bit addresses
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