參數(shù)資料
型號: EM78810
廠商: ELAN Microelctronics Corp .
英文描述: 8-Bit Micro-Controller for Telecom Product(工作電壓2.5V-6V的8位呼叫識別的RISC型微控制器)
中文描述: 8位微控制器的電信產(chǎn)品(工作電壓為2.5V到6V的8位呼叫識別的的RISC型微控制器)
文件頁數(shù): 21/31頁
文件大?。?/td> 191K
代理商: EM78810
21
* This specification are subject to be changed without notice.
9.30.1997
EM78810
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
LCD timing control
RE(LCD_C,LCD_M)
Bias control
Vdd-Vlcd
LCD duty control
LCD commom control
COM
RAM
RC(address)
RD(data)
Display data control
LCD SEGMENT control
SEG
32.768KHz
Fig16. LCD DRIVER CONTROL
LCD Driver Control
RA Bit7 : LCD_F (lcd frame frequency, 0/1=> 64 Hz/128 Hz)
RE(LCD Driver Control)(initial state “00000000”)
7
6
-
-
* Bit0 (LCD_M):LCD_M decides the methods, including duty, bias, and frame frequency.
* Bit1~Bit2 (LCD_C#):LCD_C# decides the LCD display enable or blanking.
change the display duty must set the LCD_C to “00”.
5
-
4
-
3
-
2
1
0
LCD_C2
LCD_C1
LCD_M
LCD_C
bit2,1
0 0
LCD Display Control
LCD_M
bit 0
0
1
:
:
LCD driving method/frame freq.
duty bias
1/16 1/4
1/8 1/4
:
:
change duty
Disable(turn off LCD)
Blanking
LCD display enable
0 1
1 1
LCD display area
The LCD display data is stored in the data RAM . The relation of data area and COM/SEG pin is as below:
COM15 ~ COM8
40H (Bit15 ~ Bit8)
41H
:
:
7BH
7CH
7DH
7EH
7FH
COM7 ~ COM0
00H (Bit7 ~ Bit0)
01H
:
:
3BH
3CH
3DH
3EH
3FH
SEG0
SEG1
:
:
SEG59
empty
empty
empty
empty
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