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參數(shù)資料
| 型號(hào)： | HD66420TA0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅(qū)動(dòng)程序 |
| 文件頁數(shù)： | 32/52頁 |
| 文件大小： | 167K |
| 代理商： | HD66420TA0 |
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HD66420
32
Blink Function
The HD66420 can blink a specified area on the dot-matrix display. Blinking is achieved by repeatedly
turning on and off the specified area at a frequency of one sixty-fourth the frame frequency. For example,
when the frame frequency is 80 Hz. the area is turned on and off every 0.8 seconds.
The area to be blinked can be designated by specifying vertical and horizontal positions of the area. The
vertical position or the rasters to be blinked, are specified by the blink start raster register (R6) and blink
end raster register (R7).
The horizontal position, or the dots to be blinked in the specified rasters, are specified by the blink registers
R8, R9 and R10 in an 8-dot group; each data bit in the blink registers controls its corresponding 8-dots
group. The relationship between the registers and blink area is shown in figure 18. Setting the BLK bit to 1
in control register 2 after setting the above registers starts blinking the designated area. Note that since the
area to be blinked is designated absolutely with respect to the display RAM, it will move along with a
scrolling display (figure 19).
0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 1
D
B
7
6
5
4
3
2
1
0
D
B
D
B
D
B
D
B
D
B
D
B
D
B
D
B
7
D
B
6
D
B
5
D
B
4
D
B
3
D
B
2
D
B
1
D
B
0
Blink start
line (R6)
Blink end
line (R7)
Blink registers
R8
R9
Blink area
S
LCD
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
0 0 0 1
D
B
3
2
S
D
B
D
B
1
D
B
0
R10
Figure 18 Blink Area Designation by Blink Control Registers
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66421 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66503 | 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時(shí)電路的240通道驅(qū)動(dòng)器) |
| HD66520T | 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器) |
| HD66522 | 160-Channel Column Driver with Internal Bit-Map RAM for Reflective Color Display and Grayscale Display(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66421 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66421TB0 | 制造商:Renesas Electronics Corporation 功能描述: |
| HD66503 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520T | 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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