Question: Faults 0/ a/ull adder Let us consider the full adder of section 5.4.1. We want to study the influence of functional and hardware faults on
Faults 0/ a/ull adder Let us consider the full adder of section 5.4.1. We want to study the influence of functional and hardware faults on the behavior of the circuit, and to determine the resulting failures.
1. Study the following functional fault, noted F 1, introduced during the design phase: the EXCLUSIVE OR gate has been transformed into an IDENTITY gate (its output is '1' if and only if the two inputs have the same value).
2. Study the hardware fault, noted F2, occurring during the operation: a
'stuck-at 0' noted a in Figure 5.16.
3. Compare the failures provoked by these two faults.
a b 90 - a A S Figure 5.16. Full Adder C
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