Fall2010_quiz3_solution

Fall2010_quiz3_solution - BILKENT UNIVERSITY Department of...

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BILKENT UNIVERSITY Department of Electrical and Electronics Engineering EEE212 Microprocessors QUIZ 3 12-09-2010 Fall Semester Open book, closed notes. Use the boxes provided for your answers. Show all your calculations! Duration: 35 minutes Question 1 (30 points) Question 2 (30 points) Question 3 (40 points) TOTAL SOLUTION
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2 1) [30 pts] For each of the following items, indicate whether the given information is correct or not by putting a ‘C’ for correct or a ‘W’ for wrong in the box next to the item. If you have no idea, do not answer, each wrong answer will bring a grade penalty. Statement ‘C’or ‘W’ i. Since there is a single SBUF register in 8051, we should avoid writing to the SBUF register while 8051 is receiving data through the serial port. W ii. A single MAX232 chip can convert the signals for two separate simultaneous null modem serial communication sessions. C iii. The flag generating the interrupt is cleared automatically for timer interrupts, but it should be cleared by software for the serial interrupt.
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This note was uploaded on 01/09/2012 for the course CS cs464 at Bilkent University.

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Fall2010_quiz3_solution - BILKENT UNIVERSITY Department of...

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