(TCO 8) Since the CPU provides data on the data bus for a short amount of time, during a bus cycle, the data must be __________ before it is gone. Student Answer: tri-stated latched ignored All of the above Instructor Explanation: pages 643-652, Course Textbook Points Received: 4 of 4 Comments: Questio n 2. Question : (TCO 8) The power dissipation of a digital circuit _____ as frequency goes up. -1108245348 MultipleChoice 6 True 0 -1108245348 MultipleChoice 6
Student Answer: increases decreases has no relation none of the above Instructor Explanation: pages 643-652, Course Textbook Points Received: 4 of 4 Comments: Questio n 3.Question :(TCO 8) Which is used to calculate the fan-out of high logic level? Question :(TCO 5) A LED has a current rating of 15 mA and a forward voltage drop of 1.5V. What value of current limiting resistor is required for a driving voltage of 5V? -1108245347 MultipleChoice 11 True 0 -1108245347 MultipleChoice 11 -1108245346 MultipleChoice 16 True 0 -1108245346 MultipleChoice 16
Question : (TCO 7) Which of the following toggles only D7 of PORTB? Student Answer: PORTB = PORTB ^ 0x80; PORTB = PORTB & 0x7F; PORTB = PORTB | 0xFE; PORTB = PORTB & 0xFF; Instructor Explanation: pages 243-245, Course Textbook Points Received: 0 of 4 -1108245345 MultipleChoice 22 True 0 -1108245345 MultipleChoice 22
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