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參數(shù)資料
| 型號(hào)： | HD66727 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形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/鍵掃描功能（帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動(dòng)器驅(qū)動(dòng)程序） |
| 文件頁(yè)數(shù)： | 46/98頁(yè) |
| 文件大小： | 1576K |
| 代理商： | HD66727 |
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HD66727
46
Reset Function
Initialization by Internal Reset Circuit
The HD66727 is internally initialized by RESET* input. During initialization, the system executes the
instructions as described below. Here, the busy flag (BF) therefore indicates a busy state (BF = 1),
accepting no instruction or RAM data access from the MPU. Here, reset input must be held at least 10 ms.
After releasing power-on reset, clear display instruction is operated. So wait for 1,000 clock-cycles or
more.
Make sure to reset the HD66727 immediately after power-on.
Initialization of Instruction Sets, RAM, and Pins
Instruction set initialization:
1. Clear display executed
Writes 20H to DDRAM after releasing reset.
2. Return home executed
Sets the address counter (AC) to 00H to select DDRAM
3. Start oscillator executed
4. Entry mode set
I/D = 1: Increment by 1
OSC = 0: Clock frequency not divided
5. Cursor control
B/W = 0: White-black inverting cursor off
C = 0: 8th raster-row cursor off
B = 0: Blink cursor off
6. Display on/off control
D = 0: Character/segment display off
FW = 0: 5-dot font width
LC = 0: Line-cursor off
7. Power control
AMP = 0: LCD power supply off
SLP = 0: Sleep mode off
STB = 0: Standby mode off
8. Display control
NL1, NL0 = 11: 4-line display (1/34 multiplexing duty ratio)
DL3–DL1 = 000: Double-height display off
9. Contrast adjust
CT = 0000: Weak contrast
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66728 | 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點(diǎn)圖形LCD控制器) |
| HD66730 | Dot-Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器) |
| HD66731 | Dot-Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器) |
| HD66731A00TB0L | 122 x 32 pixel format, Compact LCD size |
| HD66731A00TA0L | 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 |
|---|---|
| HD66727A03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03BP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0L | 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 |
| HD66727A04 | 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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