31
Logic Function Blocks Section 3-3
Truth Table
■ Truth Table for Comparator Evaluation (CD = Comparison Data):
0: OFF; 1: ON
Note “= CD for bit n” indicates that the Comparator input signals are the same as
the comparison data.
“≠ CD for bit n” indicates that the Comparator input signals are not the same
as the comparison data.
”
×” indicates that the status is not applicable (the input signals and compari-
son data may or may not be the same).
Input signals to Comparator Output
signals
from Com-
parator
Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 Output
Enable
≠
CD for
bit 0
× × × × × × × 0
× ≠
CD for
bit 1
× × × × × × 0
×
× ≠
CD for
bit 2
× × × × × 0
×
× × ≠
CD for
bit 3
× × × × 0
× × × × ≠
CD for
bit 4
× × × 0
×
× × × × ≠
CD for
bit 5
× × 0
× × × × × × ≠
CD for
bit 6
× 0
×
× × × × × × ≠
CD for
bit 7
0
=
CD for
bit 0
=
CD for
bit 1
=
CD for
bit 2
=
CD for
bit 3
=
CD for
bit 4
=
CD for
bit 5
=
CD for
bit 6
=
CD for
bit 7
1