Samsung S3C8275X - Manual (Page 274)

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X LCD CONTROLLER/DRIVER
13-5
LCD VOLTAGE DIVIDING RESISTOR
NOTES:
1. R = Internal LCD dividing resistors. The resistors can be disconnected by LCON.7.
2. R' = External LCD dividing resistors.
S3C8275X/C8278X/C8274X
LCON.0
V LC0
V LC2
V LC1
V SS
V DD
R
R
R
V LCD
LCON.7 = 0: Enable internal resistors
Static and 1/3 Bias 1/2 Bias
LCON.0
V LC0
V LC2
V LC1
V SS
V DD
R
R
R
V LCD
LCON.7 = 0: Enable internal resistors
LCON.0
V LC0
V LC2
V LC1
V SS
V DD
R'
R'
R'
V LCD
LCON.7 = 1: Disable internal resistors
Voltage Dividing Resistor Adjustment
S3C8275X/C8278X/C8274X
S3C8275X/C8278X/C8274X
Figure 13-5. Internal Voltage Dividing Resistor Connection