參數(shù)資料
型號: S1C6S460D
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC124
封裝: 4.69 X 4.68 MM, DIE-124
文件頁數(shù): 59/107頁
文件大小: 788K
代理商: S1C6S460D
S1C6S460 TECHNICAL MANUAL
EPSON
47
CHAPTER 7: LCD DRIVER
7.4 Control of LCD Driver
The control registers for the LCD driver are explained below.
Table 7.4.1 Control registers of LCD driver
Address
Comment
Register
D3
D2
D1
D0
Name
Init
1
0
F71H
HLMOD
R/W
ALOFF
ALON
LDUTY
HLMOD
1
0
All LCD dots fade out control
All LCD dots displayed control
LCD drive duty switch
Heavy load protection mode
All off
All on
1/8
HLMOD
Normal
1/16
Normal
LDUTY
ALON
ALOFF
F72H
LC0
LC3
LC2
LC1
LC0
X
LC1
LC2
LC3
LCD contrast adjustment
LC3–LC0 = 0
light
:
LC3–LC0 = 15
dark
R/W
LDUTY (F71H [D1], R/W)
Sets the LCD drive duty.
When "1" is written: 1/8 duty
When "0" is written: 1/16 duty
Reading: Valid
Writing "1" or "0" on LDUTY will set is to 1/8 duty or 1/16 duty, respectively.
At initial reset, LDUTY is set at "0".
ALON (F71H [D2], R/W)
Displays the all LCD dots on.
When "1" is written: All LCD dots displayed
When "0" is written: Normal operation
Reading: Valid
Writing "1" to ALON will display all the LCD dots on; writing "0" will set the LCD display back to
normal. LCD panel testing may be conducted with this function.
Total LCD displaying at ALON = "1" is a static operation and does not affect the content of the display
data memory.
ALON precedes ALOFF.
At initial reset, ALON is set at "0".
ALOFF (F71H [D3], R/W)
Fade outs the all LCD dots.
When "1" is written: All LCD dots fade out
When "0" is written: Normal operation
Reading: Valid
When "1" is written on ALOFF, all LCD dots will fade out; writing "0" will set it back to normal.
All fading out of LCD at ALOFF = "1" is due to light out signals and does not affect the content of the
display data memory.
Flashing of the entire LCD panel is performed by this function.
At initial reset, ALOFF is set to "1".
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