Assume that bit P2.2 is used to control an outdoor light and bit P2.5 a light inside a building. Show how to turn on the outside light and turn off the inside one using 8051 microcontroller.
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Assume that bit P2.2 is used to control an outdoor light and bit P2.5 a light inside a building. Show how to turn on the outside light and turn off the inside one using 8051 microcontroller.
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- Howmany bits in the control word of 8253 PIT? draw its bits and explain briefly the operation of each one.What is the equivalent PostFix Expression for the infix expression given below? 1 + y2 + z(x - 12) /110 Select one: A.1 y 2 ^ + z x 12 * + 110 / B.1 y 2 ^ + z (x 12) * + 110 / C.1 y 2 + z x 12 * + 110 / D.1 y 2 ^ + z x 12 * + /110Write an 8051 C program that will monitor a temperature sensor at P1.7. When the temperature is high: i. sound a buzzer at P2.1 iii. using a delay of 250ms, blink a red LED at P2.2 When the temperature is low: i. turn off the buzzer ii. turn off the red LED
- A device is sending out data at the rate of 1000 bps. How long does it take to sendout (a)10 bits, (b) a single character (8 bits) and (c)100,000 characters?In _____, the level of the voltage determines the value of the bit. a. NRZ-I b. NRZ-L c. both (a) and (b) d. neither (a) nor (b)Write a MIPS program that asks the user to enter an unsigned number and read it. Then swap the bits at odd positions with those at even positions and display the resulting number. i need a MIPS code for this qs??
- Assume that you have two-bit arithmetic circuit as below. To get output D = A - B, what are S1, S0 and Cin , respectively?A computer "nibble" consists of four "bits," each bit being either a 0 or a 1. If characters are represented using a code that uses a nibble for each character, how many different characters can be represented?Double the input size= (2n)^2=4n^2 so the increase is by a factor of 4 (a) n^4 (b) n^3 (c) 100n (d) nlogn (e) 2^n
- Given a bit array A = [ 0 0 1 1 0 1] on which the operations are workable:i) Can you use OR to change any desired bit of A to 1?ii) Can you use AND to change any desired bit of A to 0?iii) Can you use XOR to invert or toggle any desired bit of A?If you need to design a system for transmitting the output of a minicomputer to a line printer operating at a speed of 30 lines/sec over a voice grade telephone line with a bandwidth of 3 kHz. Assume that the line printer needs 16 bits of data per character and prints out 50 characters per line. What should be the minimum S/N to proceed this transmission?Build a circuit that takes four bits as input: W, X, Y, Z. Treat WX as a 2-bit unsigned binary number, and treat YZ as a second 2-bit unsigned binary number. Your circuit should generate the output corresponding to the product of WX and YZ. You will need 4 bits of output for this problem.For example, if your input was 1011, your inputs correspond to 2 and 3. That product is 6, so your output will be 0110.Create a truth table for this problem, show all k-maps and minimizations, and build the corresponding (minimized) circuit. Use XOR, XNOR, NAND, and NOR as appropriate if it reduces the number of gates used.