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| MC68HC08LT8 Datasheet, PDF (78/156 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Liquid Crystal Display (LCD) Driver
LCD
FP0
FP1
FP24
RFP
RFP
VLCD
RLCD
RLCD
RLCD
VR
VLCD
VLCD1
VLCD2
VLCD3
Vbias
BIAS
CONTROL
RFP
LCCON[3:0]
BP0
RBP
BP1
RBP
BP2
RBP
Figure 8-3. Simplified LCD Schematic (1/3 Duty, 1/3 Bias)
8.4.1 LCD Duty
The setting of the LCD output waveform duty is dependent on the number of backplane drivers required.
Three LCD duties are available:
⢠Static duty â BP0 is used only
⢠1/3 duty â BP0, BP1, and BP3 are used
⢠1/4 duty â BP0, BP1, BP2, and BP3 are used
When the LCD driver module is enabled the backplane waveforms for the selected duty are driven out of
the backplane pins. The backplane waveforms are periodic and are shown are shown in Figure 8-5,
Figure 8-6, and Figure 8-7.
MC68HC08LT8 Data Sheet, Rev. 1
78
Freescale Semiconductor
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