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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. H/W Circuit Description
-19-
3.5 LCD Interface(8-bit Parallel interface)
Figure 3-5-1. LCD Interface
Signal
Description
_LCD_MAIN_CS
This signal enable to access to the driver IC of main LCD.
_LCD_SUB_CS
This signal enable to access to the driver IC of sub LCD.
LCD_D(0:7)
This signal transfer display data to driver IC.
LCD_ADS, _LCD_WR
This signal transfer control signal to driver IC.
LCD_RESET
This signal makes driver IC to HW default status.
VRWLED
This signal provide power to white LEDs.
MLED1/2
This signal be feed back from white LEDs.
V_EXTH, V_IO
This signal provides power to LCD modules.
NA
EVRC14S03Q030100R
FL300
5
G1
10
G2
INOUT_A1
1
2
INOUT_A2
3
INOUT_A3
INOUT_A4
4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
6
INOUT_B4
VA300
EVLC14S02050
VBAT
VA302
6
7
8
9
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
54
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
CN301
1
10
INOUT_A4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
INOUT_B4
6
FL303
EVRC14S03Q030100R
G1
5
G2
10
1
INOUT_A1
INOUT_A2
2
INOUT_A3
3
4
G1
5
G2
10
1
INOUT_A1
INOUT_A2
2
INOUT_A3
3
4
INOUT_A4
INOUT_B1
9
8
INOUT_B2
INOUT_B3
7
INOUT_B4
6
FL304
EVRC14S03Q030100R
1u
C316
DNI
C310
100K
R312
5
G1
10
G2
INOUT_A1
1
2
INOUT_A2
3
INOUT_A3
INOUT_A4
4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
6
INOUT_B4
EVRC14S03Q030100R
FL302
C312
1V8_CAM
0.1u
VA301
47K
R308
2V8_CAM
6
INOUT_B4
EVRC14S03Q030100R
FL301
5
G1
10
G2
INOUT_A1
1
2
INOUT_A2
3
INOUT_A3
INOUT_A4
4
9
INOUT_B1
INOUT_B2
8
7
INOUT_B3
V_EXTH
1000p
C314
V_IO
VA303
4
INOUT_A4
INOUT_B1
9
8
INOUT_B2
7
INOUT_B3
INOUT_B4
6
FL305
EVRC14S03Q030100R
G1
5
G2
10
1
INOUT_A1
INOUT_A2
2
INOUT_A3
3
C311
DNI
0.1u
C315
C313
0.1u
IND_LED_B
VRWLED
MLED1
SPK_N
I2C_SCL
IND_LED_R
CAM_PWDN
MLED2
EAR_P
SPK_P
LCD_RESET
MOTOR_P
I2C_SDA
EAR_N
_LCD_SUB_CS
CAM_D(3)
CAM_D(2)
CAM_D(1)
CAM_D(0)
CAM_MCLK
CAM_PCLK
CAM_HS
CAM_VS
LCD_D(0:7)
CAM_D(0:7)
CAM_D(7)
CAM_D(6)
CAM_D(5)
CAM_D(4)
CAM_RESET
_LCD_WR
LCD_ID
_LCD_MAIN_CS
LCD_D(7)
LCD_D(6)
LCD_D(5)
LCD_D(4)
LCD_D(3)
LCD_D(2)
LCD_D(1)
LCD_D(0)
LCD_ADS