s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 319

• 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.

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
NOTES:
1. When the LCD module is turned off, clear LCON.0 to "0" to reduce power consumption.
2. If external variable resistor is used to connect V
control LCD contrast using the external variable resistor.
Figure 12-6. Application with External Contrast Control (1/5 Bias)
V
V
V
V
V
LC1
LC2
LC3
LC4
LC5
Application With Contrast Control
Output H: LCD on
"0"
S3C72M5/C72M7/C72M9
V
DD
V
"1"
LCNST.7 = 0
L: LCD off
SS
Fixed
Controller
Contrast
V
LCD
16 steps of voltage
LCON.0 (Off)
LC1
to V
DD
or normal I/O port, you can
LCD CONTROLLER/DRIVER
12-11