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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.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Signals Description
nLCD_CS MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin
LCD_ID Identify LCD module maker
LCD_RESET This pin resets LCD module. This signal comes from AD6726 directly.
nLCD_WR Enable writing to LCD Driver.
nLCD_RS This pin determines whether the data to LCD module are
LCD command or data.
2V8_MM 2.8V is supplied to LCD driver IC.
Table 3.5.B LCD CONTRON SIGNALS DISCRIPTION
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