Hitachi AP1 Data Book page 206

L C O - I V - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
One Instruction Cycle
Serial Data
Shift Clock
Shift Resister
latch Clock
Segment Data
Static
COM.
COM 1
COM,
COM.
1/2 Duty
COM.
COM1
COM,
COM.
1/3 Duty
COM.
COM 1
COM,
COM.
1/4 Duty
COM.
COM 1
COM,
COM.
All outputs are available
because of the same
waveform outputs
J
eommon
Symbol
Symbol
J
eom mon
1
eommon
Symbol
Common
Symbol
)
Both groups
are available
because of
the same
waveform
outputs
Figure 27 Liquid Crystal Display Circuit Timing Chart
204