LCD Driver (LCD64F6B)MPC5606S Microcontroller Reference Manual, Rev. 7788 Freescale Semiconductor• Selectable continuous drive of LCD while in power down mode22.2.3 Modes of operationThe LCD64F6B module supports up to seven operation modes with different numbers of backplanes anddifferent biasing levels.During power saving mode the LCD operation can be suspended under softwarecontrol. Depending on the state of internal bits, the LCD can operate normally with source clock applied,or the LCD clock generation can be turned off and the LCD64F6B module enters a power conservationstate.This is a high-level description only, detailed descriptions of operating modes are contained in latersections.22.3 External signal description22.3.1 Detailed signal descriptionsTable 22-3. Signal propertiesName Port Function Reset PullupmBackplaneWaveformsBP[m – 1:0]Backplane waveform signals that connect directly to the pads high impedancen FrontplaneWaveformsFP[n – 1:0] Frontplane waveform signals that connect directly to the pads high impedanceLCD Voltage VLCD LCD reference supply voltageVDDXVoltageVDDX LCD supply voltageVSSXVoltageVSSX LCD ground voltageTable 22-4. Interface A—detailed signal descriptionsSignal DescriptionBP[m – 1:0] This output signal vector represents the analog backplane waveforms of the LCD64F6B module andis connected directly to the corresponding pads.FP[n – 1:0] This output signal vector represents the analog frontplane waveforms of the LCD64F6B module andis connected directly to the corresponding pads.VLCD Positive reference supply voltage for the LCD waveform generation.VDDX Positive supply voltage for the LCD waveform generation.VSSX Ground supply voltage for the LCD waveform generation.
