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QUESTION 1 You wish to turn on the four most significant LEDS in the LED pack on our board. Before using the instruction "OUT 56, AL", AL should be first set to: O FO 11 56 81 FE OF O O O O

QUESTION 1 You wish to turn on the four most significant LEDS in the LED pack on our board. Before using the instruction "OUT 56, AL", AL should be first set to: O FO 11 56 81 FE OF O O O O

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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**QUESTION 1** You wish to turn on the four most significant LEDs in the LED pack on our board. Before using the instruction "OUT 56, AL", AL should be first set to: - ○ F0 - ○ 11 - ○ 56 - ● 81 - ○ FF - ○ 0F --- **QUESTION 2** The keyboard processor sends the ______ to the main processor. - ○ Scan code - ○ ASCII code - ○ Row and column - ○ Input port
Transcribed Image Text:**QUESTION 1** You wish to turn on the four most significant LEDs in the LED pack on our board. Before using the instruction "OUT 56, AL", AL should be first set to: - ○ F0 - ○ 11 - ○ 56 - ● 81 - ○ FF - ○ 0F --- **QUESTION 2** The keyboard processor sends the ______ to the main processor. - ○ Scan code - ○ ASCII code - ○ Row and column - ○ Input port
**QUESTION 3** The resistors in this circuit are called ________ resistors because they are connected to Vcc. Diagram Explanation: - The diagram shows a set of 12 resistors connected in a grid pattern. - Port A (output) is on the left, labeled D0, D1, D2, and D3, with numbers 0 to F indicating binary values. - These output lines are connected to a vertical set of resistors. - The resistors lead to lines connected to Vcc at the top, indicating they are pull-up resistors. - Port B (input) features connections labeled D3, D2, D1, and D0. Options: - ○ inverted - ○ pull up - ○ output - ○ pull down **QUESTION 4** To turn on all the LEDs with the instruction "OUT AL, 43", AL should be first set to ________. Options: - ○ AA - ○ 00 - ○ 55 - ○ FF
Transcribed Image Text:**QUESTION 3** The resistors in this circuit are called ________ resistors because they are connected to Vcc. Diagram Explanation: - The diagram shows a set of 12 resistors connected in a grid pattern. - Port A (output) is on the left, labeled D0, D1, D2, and D3, with numbers 0 to F indicating binary values. - These output lines are connected to a vertical set of resistors. - The resistors lead to lines connected to Vcc at the top, indicating they are pull-up resistors. - Port B (input) features connections labeled D3, D2, D1, and D0. Options: - ○ inverted - ○ pull up - ○ output - ○ pull down **QUESTION 4** To turn on all the LEDs with the instruction "OUT AL, 43", AL should be first set to ________. Options: - ○ AA - ○ 00 - ○ 55 - ○ FF
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