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參數(shù)資料
| 型號(hào)： | HCD66727A03 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| 中文描述： | 低功耗點(diǎn)陣液晶顯示控制器/鍵掃描功能驅(qū)動(dòng)程序 |
| 文件頁(yè)數(shù)： | 72/97頁(yè) |
| 文件大?。?/td> | 513K |
| 代理商： | HCD66727A03 |
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HD66727
72
Vertical Smooth Scroll
The HD66727 can scroll in the vertical direction in units of raster-rows. This function is achieved by
writing character codes into DDRAM area that is not being used for display. In other words, since DDRAM
corresponds to a 5-line
×
12-character display, one of the lines can be used to achieve continuous smooth
vertical scroll even in a 4-line display. Here, after the fifth line is displayed, the first line is displayed again.
Specifically, this function is controlled by incrementing or decrementing the value in the display-start line
bits (SL2 to SL0) and display-start raster-row bits (SN2 to SN0) by 1. For example, to smoothly scroll up,
first set SN2 to SN0 to 000, and increment SL2 to SL0 by 1 from 000 to 111 to scroll seven raster-rows.
Then increment SN2 to SN0 to 001, and again increment SL2 to SL0 by 1 from 000 to 111. To start
displaying and scrolling from the first raster-row of the second line, update the first line of DDRAM data as
desired during its non-display period.
Figure 41 shows an example of vertical smooth scrolling and Figure 42 shows an example of setting
instructions for vertically scrolling upward in a 4-line display (NL1 and NL0 = 11).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCD66727A03BP | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04 | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04BP | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66730A00 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCD66727A03BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66730A00 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
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