參數(shù)資料
型號(hào)： HD61602
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)： 10/37頁
文件大?。?/td> 229K
代理商： HD61602
HD61602/HD61603
1239
Writing Data into 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 driving methods
as described in “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 Figure 8 (allocation of digits). 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 6 shows the digit address (displayed as Adn) to specify the store address of the transferred 8-bit
data on a digit basis.
Figure 7 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 for static, Ad12 for 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.
相關(guān)PDF資料
PDF描述
HD61604 Segment Type LCD Driver(段類型LCD驅(qū)動(dòng)器)
HD61605 Segment Type LCD Driver(段類型LCD驅(qū)動(dòng)器)
HD61830A00H LCDC (LCD Timing Controller)
HD61830 LCDC (LCD Timing Controller)
HD61830B LCDC (LCD Timing Controller)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD61602R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER
HD61602RH 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER
HD61603 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER
HD61603R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER
HD61604 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
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