3. TECHNICAL BRIEF
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3.5.1 Interconnection with external devices
A. RTC block interface
Countered by external X-TAL
The X-TAL oscillates 32.768KHz
B. LCD module interface
The LCD module is controlled by DBB chipset, AD6527.
When LCD operate, the AD6527 controls the LCD module through _LCD_CS (L_MAIN_LCD_CS),
_SUB_CS (L_SUB_LCD_CS), LCD_RESET, ADD01(LCD_RS), _WR(LCD_WR), _RD(LCD_RD),
L_DATA[15-00], 2V85_VCAM, IF_MODE, LCD_ID[1:3].
Signals
Description
_LCD_CS
MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin
_SUB_CS
SUB LCD driver chip enable. SUB LCD driver IC has own CS pin
LCD_RESET
This pin resets LCD module. This signal comes from DBB directly.
(GPIO 15)
_WR
Enable writing to LCD Driver.
_RD
Enable reading to LCD Driver.
ADD01
This pin determines whether the data to LCD module are display data or
control data. LCD_RS can select 16 bit parallel bus.
2V85_VCAM
2.85V voltage is supplied to LCD driver IC.
IFMODE
Select 16bits or 8bits interface mode for MAIN LCD.
(GPO_8)
For the future
LCD_ID1
Select LCD modoule maker(2.4V : SII, 0V : HyeLCD)
(AUXADC1 in ABB)
LCD_ID2(GPIO_16)
For the future.
LCD_ID3(GPIO_17)
Table 3-3. LCD CONTRON SIGNALS DISCRIPTION
Summary of Contents for C2100
Page 1: ...Service Manual Model C2100 Service Manual C2100 P N MMBD0048201 Date April 2005 Issue 1 0 ...
Page 76: ...4 TROUBLE SHOOTING 77 4 10 KEY backlight Trouble Test Points Figure 4 21 ...
Page 104: ... 105 8 PCB LAYOUT ...
Page 105: ... 106 8 PCB LAYOUT ...
Page 113: ...10 STAND ALONE TEST 114 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
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