Max (X->Z)
0.00 x=0 0
0.40 z=0 0
Fall (Z->0)
10.00 z=0 1
11.30 0=0 1
To High-Z (0->Z)
20.00 0=0 0
21.40 z=0 0
25.00 z=1 0
Rise (Z->1)
30.00 z=1 1
31.20 1=1 1
To High-Z (1->Z)
40.00 1=1 0
41.40 z=1 0