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ee201_midterm2_Sp2006

# ee201_midterm2_Sp2006 - ee201_midterm2_Sp2006.fm Spring...

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ee201_midterm2_Sp2006.fm 5/1/2006 EE201L Midterm #2 - Spring 2006 1 / 14 C Copyright 2006 Gandhi Puvvada Spring 2006 EE201L Instructor: Gandhi Puvvada Midterm Exam II (30%) Date: April 28, 2006, Friday Open-Book Open-Notes Exam Time: 4:00 - 6:00PM in SGM124 Name: Total points: 153 Perfect score: 145 / 153 1 ( 3 + 6 + 3 + 4 = 16 points) min. Mutually Exclusive (M.E) and All Inclusive (A.I) 1.1 Mr. Bruin violated ______________ ( M.E / A.I / both M.E and A.I / neither M.E nor A.I) rule. Ms. Bruin violated ______________ ( M.E / A.I / both M.E and A.I / neither M.E nor A.I) rule. 1.2 In one of the voting machines, a student wrote state transition conditions as shown on the side. MC0 (= Q1 .Q0 ) stands for max count 0. Like in our homework problems, here also the counter starts with 0,0 and then increments. Without MC0 being true, he _________________ (could / could not) arrive at State_S for the first time . MC1 (Q1 .Q0), MC2 (= Q1.Q0 ), and MC3 (= Q1.Q0) [standing for max count 1, max count 2, and max count 3] ___________ (are / aren’t) mutually exclusive. The two bit counter (whose outputs produce MC3, MC2, MC1, MC0) rolls over to 0 after counting up to 3. He violated ___________________________________________________________________ (the M.E. rule only / the A.I. rule only / both M.E. and A.I. rules / none of the two rules). Explain: _____________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ 1.3 We know the two algebraic verification rules below for a three-conditions situation on the side. To verify M.E. rule, we use C1.C2 + C2.C3 + C3.C1 = 0 . and to verify A.I. rule, we use C1 + C2 + C3 = 1 . At your internship at Xilinx, you met another intern who was trying to recall two similar rules. He tells you that he vaguely remembers them as below. He is not sure if he remembers them 3 pts A .B B.C S1 A.C A.B .C AB C 00 01 11 10 0 1 1 1 0 1 1 1 1 1 A B C Mr. Bruin’s design A .B B S1 A.C A.B .C AB C 00 01 11 10 0 1 1 1 1 1 1 1 1 1 A B C Ms. Bruin’s design State_S V . M C 0 MC V V .MC1 V .MC3 .M 2 6 pts C1 C2 C3 S1 3 pts

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ee201_midterm2_Sp2006 - ee201_midterm2_Sp2006.fm Spring...

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