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ML9040A 参数 Datasheet PDF下载

ML9040A图片预览
型号: ML9040A
PDF下载: 下载PDF文件 查看货源
内容描述: 具有16点共同驱动器和40点段驱动点阵LCD控制器 [DOT MATRIX LCD CONTROLLER WITH 16-DOT COMMON DRIVER AND 40-DOT SEGMENT DRIVER]
分类和应用: 驱动器控制器
文件页数/大小: 49 页 / 432 K
品牌: OKI [ OKI ELECTRONIC COMPONETS ]
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PEDL9040A-03  
¡ Semiconductor  
ML9040A-Axx/-Bxx  
(2)When character pattern is 5 x 10 dots (see Table 3-2).  
• A method of writing character pattern into the CG RAM by the CPU:  
Four bits of CG RAM address, bits 0-3, correspond to the line position of the character  
pattern.  
First, set increment or decrement with the CPU, and then input the address of the CG  
RAM.  
After this, write the character pattern code into the CG RAM, line by line from DB -  
0
DB .  
7
DB to DB correspond to CG RAM data, bits 0-7, in Table 3-2.  
0
7
It is displayed when "H" is set as input data, while it is not displayed when "L" is set  
as input data.  
As the ADC is automatically incremented or decremented by 1 after the writing of  
data to the CG RAM, it is not necessary to set the CG RAM address again.  
The line, the CGRAM addresses 0-3 of which are "A" in hexadecimal notation, is the  
cursor position. The CGRAM data is 0Red with the cursor at the cursor position and  
displayed to LCD. For this reason, it is necessary to set all input data that become  
cursor positions to "L".  
WhentheCG RAMdata, bits 0-4, and CG RAM addresses, bits 0-3, are"0"to "A", they  
are displayed on the LCD as the display data. When the CG RAM data, bits of 5-7,  
and CG RAM, bit data is 0-4 and CG RAM address data is "B" to "F", it is not output  
to the LCD.  
But in this case, CG RAM can be used as RAM and it can be written into/read out.  
So, it can be used as the data RAM.  
• A method of displaying the CG RAM character pattern to the LCD:  
The CG RAM is selected when 4-upper order bits of the character code are all "L".  
As character code bits 0 and 3 are invalid, the display of "m" is selected by character  
codes "00", "01", "08", and "09" (hex.) as in Table 3-2.  
When the CG RAM character code is written to the DD RAM, the CG RAM character  
pattern is displayed on the LCD display position corresponding to the DD RAM  
address.  
(DD RAM data bits 1 and 2 correspond to CG RAM address bits 4 and 5.)  
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