Intel 8XC196NT User Manual page 241

8XC196NT USER'S MANUAL
Optical
Reader
State of X_internal
10-8
Increment
Decrement
X
Y
Figure 10-3. Quadrature Mode Interface
Table 10-3. Quadrature Mode Truth Table
State of Y_internal
(T x CLK) (T x DIR)
↑
↓
0
1
↓
↑
0
1
8XC196 Device
T x CLK
D Q D Q
T x DIR
D Q D Q
Count Direction
0 Increment
1 Increment
↓
Increment
↑
Increment
0 Decrement
1 Decrement
↑
Decrement
↓
Decrement
PH2
PH1
D Q X_internal
D Q
Y_internal
A0268-02