MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 335

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Liquid Crystal Display Driver (LCD)
Technical Data
336
LCCON[3:0] — LCD Contrast Control
LCCON3
These read/write bits select the bias voltage, V
controls the contrast of the LCD. Maximum contrast is set when
LCCON[3:0] = 0000; minimum contrast is when LCCON[3:0] = 1111.
FC
X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
1
Liquid Crystal Display Driver (LCD)
LCCON2
LC
Table 16-2. Resistor Ladder Selection
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Table 16-3. LCD Bias Voltage Control
Each resistor is approximately 37 kΩ (default)
Each resistor is approximately 146 kΩ
Fast charge mode
LCCON1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
LCCON0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Action
MC68HC908LJ12
bias
Freescale Semiconductor
Bias Voltage
. This voltage
(% of V
11.6%
13.5%
15.3%
17.2%
18.8%
20.5%
22.0%
23.6%
25.0%
26.4%
27.7%
0.6%
2.9%
5.2%
7.4%
9.6%
DD
)
—
Rev. 2.1