Digital Design_ Principles and Practices, Chegg Solution Manual_parte_185

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Step of 5 5.022E The equation for alarm circuit according to the context is given by, Alarm = Panic + (1) Secure can also be written according to the context as, (2) Substitute (2) in (1). Alarm = Panic + (Enable-Exiting' Panic + (Enable Exiting' (Window'+ + Garrage')) Panic + Enable-Exiting' Window' + Enable Exiting' Thus, two level AND-OR circuit for the above logic expression can be drawn as follows: Panic Enable Existing Window Door Garage Alarm Step of 5 Figure 1: Two level AND-OR circuit for Alarm circuit. Step of 5 The pair of numbers is written in below circuits for input and output of the gate A pair of numbers consider as t1), where to is the test number that detect stuck-at-0 fault on that line and t1 is the test number that detect stuck-at-1 fault. Thus, the Figure 2 gives the stuck at 0 and 1 fault in Panic line: Panic Enable Existing Window Door Garage (0,0) (1,0) (1,0) (1,0) (1,0) (1,0) (0,0) (0,0) Alarm (1,0) (0,0) Figure 2: Test vector for panic line of the Alarm circuit Step of 5 Thus, the Figure 3 gives the Stuck at 0 and 1 fault in Enable, Exiting and Window line: Panic Enable Existing Window Door Garage (0,0) (1,0) (1,0) (0,0) (1,0) (t,0) (0,0) Alarm (1,0) (0,0) Figure 3: Test vector for Exiting and Window line of the Alarm circuit Step of 5 Thus, the Figure 4 gives the Stuck at 0 and 1 fault in Enable, Exiting and Door line. Panic Enable Existing Window Door Garage (0,0) (1,0) (0,0) (1,0) (0,0) (1,0) (0,0) (0,0) (1,0) Alarm (1,0) (0,0) Figure 4: Test vector for Enable, Exiting and Door line of the Alarm circuit Thus, the Figure 5 gives the Stuck at 0 and 1 fault in Enable, Exiting and Garage line. Panic Enable Existing Window Door Garage (0,1) (1,1) (0,1) (0,0) (1,0) (0,0) (0,0) (0,0) Alarm (1,0) (1,0) Figure 5: Test vector for Enable, Exiting and Door line of the Alarm circuit