Developing a Logisim Circuit for a Lift Simulation System

Running head: COMPUTER SYSTEMS AND NETWORKS
COMPUTER SYSTEMS AND NETWORKS
Name of the Student
Name of the University
Author Note

COMPUTER SYSTEMS AND NETWORKS1
Introduction:
In this assignment the objective is to develop a Logisim circuit for a lift Simulation system.
The lift has two inputs namely C and D respectively. Both has different values which
represents the floor number of the lift from 0 to 7. Among the floors 0, 4 and 6 are private
floors and the lift is not supposed to stop or start from those floors. Also, the lift movement is
unsuccessful if the destination floor is same as the starting floor. The lift movement is
successful for all the other floor to floor input. The input C is modelled by C1, C2 and C3 of
one bit and input D is modelled by D1, D2 and D3 with each of one bit. C and D input
representation table:
Successful operations from C to D:
1 to 2, 2 to 1, 1 to 3, 3 to 1, 1 to 5 , 5 to 1, 1 to 7, 7 to 1, 2 to 3, 3 to 2, 2 to 5, 5 to 2, 2 to 7, 7
to 2, 3 to 5, 5 to 3, 3 to 7, 7 to 3, 5 to 7, 7 to 5
Truth Table representation of C and D for Successful operation:
C1 C2 C3 D1 D2 D3 Successful
Operation (S)
0 0 1 0 1 0 1 to 2

COMPUTER SYSTEMS AND NETWORKS2
0 1 0 0 0 1 2 to 1
0 0 1 0 1 1 1 to 3
0 1 1 0 0 1 3 to 1
0 0 1 1 0 1 1 to 5
1 0 1 0 0 1 5 to 1
0 0 1 1 1 1 1 to 7
1 1 1 0 0 1 7 to 1
0 1 0 0 1 1 2 to 3
0 1 1 0 1 0 3 to 2
0 1 0 1 0 1 2 to 5
1 0 1 0 1 0 5 to 2
0 1 0 1 1 1 2 to 7
1 1 1 0 1 0 7 to 2
0 1 1 1 0 1 3 to 5
1 0 1 0 1 1 5 to 3
0 1 1 1 1 1 3 to 7
1 1 1 0 1 1 7 to 3
1 0 1 1 1 1 5 to 7
1 1 1 1 0 1 7 to 5
K-MAP of the Sum Of Product (SOP) form:
D1D2D3
C1C2C3 000 001 011 010 110 111 101 100
000 0 0 0 0 0 0 0 0