NXP Semiconductors MC9S08LG16, Reference Manual

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Chapter 8 LCD Module (S08LCDLPV1)
MC9S08LG32 MCU Series, Rev. 5
160 Freescale Semiconductor
9.1.5 Features
The LCD module driver features include:
• LCD waveforms functional in wait, stop2 and stop3 low-power modes
• 45 LCD (LCD[44:0]) pins with selectable frontplane/backplane configuration
— Generate up to 44
frontplane signals
— Generate up to 8 backplanes signals
• Programmable LCD frame frequency
• Programmable blink modes and frequency
— All segments blank during blink period
— Alternate display for each LCD segment in x4 or less mode
— Blink operation in low-power modes
• Programmable LCD power supply switch, making it an ideal solution for battery-powered and
board-level applications
— Charge pump requires only four external capacitors
— Internal LCD power using V
DD
(1.8 to 3.6 V)
— External V
LL3
power supply option (3V)
• Integrated charge pump for generating LCD bias voltages
— Hardware configurable to drive 3 V or 5 V LCD panels
— On-chip generation of bias voltages
• Waveform storage registers LCDWF
• Backplane reassignment to assist in vertical scrolling on dot-matrix displays
• Software configurable LCD frame frequency interrupt
• Internal ADC channels are connected to V
LL1
to monitor their magnitudes. This feature allows
software to adjust the contrast.