UPC EETAC Bachelor's Degree in Telecommunications Systems and Network Engineering EEL
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CSD EXA1: midterm exam examples and solution ideas

2627Q1

Problem 1

1. Study the highlighted project P4 on an 8-bit integer operator.

2. See L4.1 activity #2.

3. To calculate the speed of a combinational circuit based on plan C2, you can follow the discussion in LAB4.1. For instance, let us suppose that the Adder_9bit is based on a ripple carry chain of 9 Adder_1bit. Let us also suppose that this 1-bit full adder component is solved using canonical minterms (NGL = 3, NG = 16). Therefore, for the Int_Add_Subt_9bit: NGL = 29, NG = 154

To calculate a broad estimation of the circuit's power consumption we will imagine that all the gates are switching at the maximum speed.

4. Study the highlighted project P4 on an 8-bit integer operator.

 

Problem 2

1. See the MUX_8 solved as circuit expansion using plan C2.

2. This question is solved in LAB2.

3. This question is solved in LAB2.

 

Problem 3

1. Simply use the algebra shown in unit L1.5 to deduce an equivalent circuit based on only NOR_2 gates.

2. Follow any of the P1 analysis examples to get the truth table or its representation as a product of maxterms.

3. Follow and adapt the examples in L3.3.