For the circuit below, list the output r3r2r1r0 IN DECIMAL for the following inp
ID: 2082176 • Letter: F
Question
For the circuit below, list the output r3r2r1r0 IN DECIMAL for the following input sequence:The values for D = d3d2d1d0 I = I3I2I1I0 and R= r3r2r1r0 are listed in decimal so (1001)2 = (9)10 Assume addr=1 for all inputs. And that initially all flip flops are set to 0. Also assume the any changes to the inputs will be stable at the flip flip inputs before the clock change.
Clock Cycle Read Write D 4 Z (high impedance) Read addr Write L 2 3 4 5 6 1 10 15 13 12 Il do Q00 CK Q1 CK Q2 CK CLK ro r2 T3Explanation / Answer
CLOCK
1
2
3
4
5
6
READ
0
1
0
0
0
1
WRITE
1
0
1
0
1
1
I
4
7
7
0
10
15
D
4
0
7
7
10
15
R
Z
0
Z
Z
Z
15
If read signal is low output is in high impedance state.
If two inputs of Nand gate is high output is low, otherwise output is high.
CLOCK
1
2
3
4
5
6
READ
0
1
0
0
0
1
WRITE
1
0
1
0
1
1
I
4
7
7
0
10
15
D
4
0
7
7
10
15
R
Z
0
Z
Z
Z
15