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參數(shù)資料
| 型號(hào)： | HD66712 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dot-Matrix Liquid Crystal Display Controller/Driver |
| 中文描述： | 點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 43/88頁(yè) |
| 文件大?。?/td> | 662K |
| 代理商： | HD66712 |
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HD66712U
406
B:
The character indicated by the cursor blinks when B is 1. The blinking is displayed as switching
between all blank dots and displayed characters at a speed of 370-ms intervals when f
cp
or f
OSC
is 270 kHz.
The cursor and blinking can be set to display simultaneously. (The blinking frequency changes according
to f
OSC
or the reciprocal of f
cp
. For example, when f
cp
is 300 kHz, 370
×
270/300 = 333 ms.)
Extended Function Set
When the extended register enable bit (RE) is 1, FW, B/W, and NW bit shown below are accessed.
Once these registers are accessed, the set values are held even if the RE bit is set to zero.
FW:
When FW is 1, each displayed character is controlled with a 6-dot width. The user font in CGRAM
is displayed with a 6-bit character width from bits 5 to 0. As for fonts stored in CGROM, no display area
is assigned to the left most bit, and the font is displayed with a 5-bit character width. If the FW bit is
changed, data in DDRAM and CGRAM SEGRAM is destroyed. Therefore, set FW before data is written
to RAM. When font width is set to 6 dots, the frame frequency decreases to 5/6 compared to 5-dot time.
See “Oscillator Circuit” for details.
B/W:
When B/W is 1, the character at the cursor position is cyclically displayed with black-white
inversion. At this time, bits C and B in display on/off control register are “Don’t care.” When f
CP
or f
OSC
is
270 kHz, display is changed by switching every 370 ms.
NW:
When NW is 1, 4-line display is performed. At this time, bit N in the function set register is “Don’t
care.”
i) Cursor display example
ii) Blink display example
White-black inverting
display example
iii)
Alternating
display
Alternating
display
i) 5-dot character width
ii) 6-dot character width
a) Cursor blink width control
b) Font width control
Figure 16 Example of Display Control
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66712UA02TA0 | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712SA00FS | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712SA01FS | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712SA02FS | Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712UA03TA0 | Dot-Matrix Liquid Crystal Display Controller/Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66712A00TA0 | 制造商:Renesas Electronics Corporation 功能描述: |
| HD66712A00TB0 | 制造商:Renesas Electronics Corporation 功能描述: |
| HD66712FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66712SA00FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712SA01FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
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