A technician breadboards the adder/subtractor of Figure 6-14. During testing, she finds that whenever an addition is

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A technician breadboards the adder/subtractor of Figure 6-14. During testing, she finds that whenever an addition is performed, the result is 1 more than expected, and when a subtraction is performed, the result is 1 less than expected. What is the likely error that the technician made in connecting this circuit?


Figure 6-14

Transfer pulse 8 BB B B D 12 7 B CLK A3 Im A3 6 D B register 11 5 B CLK A A D 10 B 3 74LS283 A A CLK BoBo 2 D

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Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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