s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 318

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

LCD CONTROLLER/DRIVER
12-10
V
V
V
V
V
LC1
LC2
LC3
LC4
LC5
Application Without Contrast Control
NOTES:
1. When the LCD module is turned off, clear LCON.0 to "0" to reduce power consumption.
2. When LCNST.7 is logic one, you can control LCD contrast by writing data to LCNST.3-.0.
Figure 12-5. Internal Voltage Dividing Resistor Connection (1/5 Bias, Display On)
"0"
S3C72M5/C72M7/C72M9
V
DD
"1"
V
LCNST.7 = 0
SS
Fixed
Controller
Contrast
V
LCD
16 steps of voltage
LCON.0 (On)
V
V
V
V
V
LC1
LC2
LC3
LC4
LC5
S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
Application With Contrast Control
"0"
S3C72M5/C72M7/C72M9
V
DD
V
"1"
LCNST.7 = 1
SS
Fixed
Controller
Contrast
V
LCD
16 steps of voltage
LCON.0 (On)
V
n = 0, 1, 2, ........, 15
LCD
= V
DD
x (n+17)/32