Consider again the adder/subtractor circuit. Suppose that there is a break in the connection path between the
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Consider again the adder/subtractor circuit. Suppose that there is a break in the connection path between the SUB input and the AND gates at point X in Figure 6-17. Describe the effects of this open on the circuit operation for each mode.
Figure 6-17
Transcribed Image Text:
C4 BB₂ 100 8 12 7 Ag B₂ B₂ B₂ 6 11 5 B₁ B₁ B₁ A₂ 10 3 Bo Bo A₁ Bo 2 74LS283 4-bit parallel adder 9 1 X Ao ADD SUB Co
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First realize that this fault will produce a logic 1 at the affected input of AND gates 2 4 6 and 8 ...View the full answer
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Related Book For
Digital Systems Principles And Application
ISBN: 9780134220130
12th Edition
Authors: Ronald Tocci, Neal Widmer, Gregory Moss
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