參數(shù)資料
型號(hào)： HD61604
廠商： Hitachi,Ltd.
英文描述： Segment Type LCD Driver(段類型LCD驅(qū)動(dòng)器)
中文描述： 段類型LCD驅(qū)動(dòng)器（段類型液晶驅(qū)動(dòng)器）
文件頁數(shù)： 10/33頁
文件大?。?/td> 199K
代理商： HD61604
HD61604/HD61605
1276
Writing Data into HD61604 Display RAM:
Data is written into the display RAM in the following five
methods:
1. Bit manipulation
Data is written into any bit of RAM on a bit basis.
2. Static display mode
8-bit data is written on a digit basis according to the 7-segment type LCD pattern of static drive.
3. 1/2 duty cycle display mode
8-bit data is written on a digit basis according to the 7-segment type LCD pattern of 1/2 duty cycle
drive.
4. 1/3 duty cycle display mode
8-bit data is written on a digit basis according to the 7-segment type LCD pattern of 1/3 duty cycle
drive.
5. 1/4 duty cycle display mode
8-bit data is written on a digit basis according to the 7-segment type LCD pattern of 1/4 duty cycle
drive.
The RAM area and the allocation of the segment data for 1-digit display depend on the drive methods as
described in the section of “Reading Data from Display RAM”.
8-bit data is written on a digit basis corresponding to the above duty cycle driving methods. The digits are
allocated as shown in Figure 8. As the data can be transferred on a digit basis from a microprocessor,
transfer efficiency is improved by allocating the LCD pattern according to the allocation of each bit data
of the digit in the data RAM.
Figure 8 shows the digit address (displayed as Adn) to specify the store address of the transferred 8-bit
data on a digit basis.
Figure 9 shows the correspondence between each segment in an Adn and the 8-bit input data.
When data is transferred on a digit basis 8-bit display data and digit address should be specified as
described above.
However, when the digit address is Ad6 of static, Ad12 of 1/2 duty cycle, or Ad25 for 1/4 duty cycle,
display RAM does not have enough bits for the data. Thus the extra bits of the input 8-bit data are
ignored.
In bit manipulation, any one bit of display RAM can be written. When data is transferred on a bit basis,
1-bit display data, a segment address (6 bits) and a common address (2 bits) should be specified.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD61604R 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD61605 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD61605R 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD61810 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
HD61810CP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
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