Datasheet

Chapter 9 Liquid Crystal Display (S08LCDV1)
MC9S08LC60 Series Data Sheet: Technical Data, Rev. 4
Freescale Semiconductor 125
9.1.1 Features
The LCD module driver module features include:
• Low-power LCD waveform mode
• LCD waveforms functional in wait and stop3 low-power modes
• Selectable frontplane/backplane configuration
— Up to 41 frontplanes
— Up to 4 backplanes
• Programmable LCD frame frequency
• Programmable blink modes and frequency
— Independent blink control for each LCD segment
— Blink function remains active in stop3 mode
• Programmable LCD power supply switch making it an ideal solution for battery powered and
board level applications
— Requires only four external capacitors
— Internal LCD power using V
DD
(1.8 to 3.6 V)
— External V
LCD
power supply option (0.9 to 1.8 V)
• Integrated charge pump for LCD
— Hardware configurable to drive 3-V or 5-V LCD panels
— On-chip generation of bias voltages, adjustable charge pump frequency
• Dedicated LCD RAM
• LCD frame frequency interrupt event
• Internal ADC channels are connected to V
LL1
and V
LCD
to monitor their magnitudes.This feature
makes it possible to adjust the contrast by software.
• Low-power, low-voltage CMOS technology
9.1.2 Modes of Operation
The LCD module supports the following operation modes:
Table 9-2. Modes of Operation
Mode Operation
Stop1 all LCD operation is suspended. It is recommended to blank the display before entering stop1
Stop2 all LCD operation is suspended. It is recommended to blank the display before entering stop2.