參數(shù)資料
型號: S1C63653F
元件分類: 微控制器/微處理器
英文描述: 4-BIT, FLASH, 4 MHz, MICROCONTROLLER, CQFP100
封裝: CERAMIC, QFP15-100
文件頁數(shù): 83/121頁
文件大?。?/td> 1127K
代理商: S1C63653F
56
EPSON
S1C63653 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
4.8.6 LCD contrast adjustment
In the S1C63653, the LCD contrast can be adjusted by the software.
It is realized by controlling the voltages VC1, VC2 and VC3 output from the LCD system voltage circuit.
The contrast can be adjusted to 16 levels as shown in Table 4.8.6.1. VC1 is changed within the range from
0.95 to 1.40 V (0.03 V step), and other voltages change according to VC1.
Table 4.8.6.1 LCD contrast
No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
LC3
0
1
LC2
0
1
0
1
LC1
0
1
0
1
0
1
0
1
LC0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VC1 (V)
0.95
0.98
1.01
1.04
1.07
1.10
1.13
1.16
1.19
1.22
1.25
1.28
1.31
1.34
1.37
1.40
Contrast
light
dark
*
Do not set VC1 to 1.16 V or more (LC = 7 or more) when the LCD system
voltage regulator is driven in the halver mode.
At initial reset, the LC0–LC3 are set to 0000B. The software should initialize the register to get the desired
contrast.
When an external power supply is selected by mask option, the LC0–LC3 register becomes invalid.
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