Toshiba TC9314F Manual page 34

4. Example of Timing Chart for LCD Driver Output Data and Loading Key Data
The following chart shows the output waveform timing and key return data loading timing when the
common and segment outputs are allocated as shown.
The voltages output in the LCD driver waveform are V
between the two. Pins S23~S30 output the key return signals at the timing for switching between these
levels. During key return data loading, the segment outputs are at the V
Note 36: At CKSTP instruction execution or at a system reset, the common and segment pins go to the low
level.
, GND, and an intermediate voltage halfway
LCD
34
TC9314F
level for 80 µs.
LCD
2003-07-03