LG KP260 Service Manual page 23

3. TECHNICAL BRIEF
3.6.1 Interconnection with external devices
A. RTC block interface
Countered by external X-TAL
32.768kHz oscillator supplies on-chip Real Time Clock circuitry
B. LCD module interface
The LCD module is controlled via mobile media processor AIT716
If AIT716 is in the state of by-pass mode, the LCD control signals from AD6726
are by-passed through AIT716.
In operating mode, the AIT716 controls the LCD module through nLCD_CS, nLCD_RS, nLCD_WR,
L_DATA07~L_DATA00.
Signals
nLCD_CS
LCD_ID
LCD_RESET
nLCD_WR
nLCD_RS
2V8_MM
LGE Internal Use Only
MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin
Identify LCD module maker
This pin resets LCD module. This signal comes from AD6726 directly.
Enable writing to LCD Driver.
This pin determines whether the data to LCD module are
LCD command or data.
2.8V is supplied to LCD driver IC.
Table 3.5.B LCD CONTRON SIGNALS DISCRIPTION
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Description
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