Question: Problem 9. Complete the truth table. The table DigitInputs Outputs shows the nine decimal digits, their binary equivalents, and seven columns labeled A-G. The columns
Problem 9. Complete the truth table. The table DigitInputs Outputs shows the nine decimal digits, their binary equivalents, and seven columns labeled A-G. The columns labeled A-G can be used to record when a segment must be illuminated to display a given digit. For example, in the first row corresponding to the digit '0', segments A, B, C D, E, and F must be illuminated, so a '1' must be placed in those columns. When completed, the table can serve as a truth table for the seven-segment controller- it shows the required logic relationship between the four inputs and seven outputs. Note that in the truth 51 0 1 table, the last six input patterns (1010 through 1111) are not associated with a decimal digit. They are therefore "illegal" inputs, so outputs 7 0 1 1 can receive a "don't care" for those rows 4-bit numbers Segment-drive functions B3 B2 B1 BO AB C DE F G 1 0 0 0 1 NA 1 0 1 0
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