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參數(shù)資料
| 型號(hào)： | HD66705U |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動(dòng)器) |
| 中文描述： | 低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器（圖形液晶顯示控制器/驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 61/81頁 |
| 文件大?。?/td> | 426K |
| 代理商： | HD66705U |
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HD66705U
61
Vertical Smooth Scroll
The
HD66705U
can scroll in the vertical direction in units of raster-rows. This function is achieved by
writing character codes into the DDRAM area that is not being used for display. In other words, since the
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
scroll-start line bits (SL2 to SL0) and scroll-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 38 shows an example of vertical smooth scrolling and Figure 39 shows an example of setting
instructions for vertically scrolling upward in a 2-line display (NL = 1).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66710 | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 16 AMP SPDT MINIATURE POWER RELAY |
| HD66710A00TF | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712U | Dot-Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器) |
| HD66712 | Dot-Matrix Liquid Crystal Display Controller/Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66710 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00TF | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712A00TA0 | 制造商:Renesas Electronics Corporation 功能描述: |
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