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參數(shù)資料
| 型號(hào)： | HD66725 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Graphics LCD 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： | 圖形液晶顯示控制器/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)： | 55/117頁(yè) |
| 文件大?。?/td> | 834K |
| 代理商： | HD66725 |
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HD66724/HD66725
55
Reset Function
The HD66724/HD66725 are internally initialized by RESET input. During initialization, the system
executes a clear display instruction after reset is canceled. The system executes the other instructions
during the reset period. Because the busy flag (BF) indicates a busy state (BF = 1) during the reset period
and execution of the clear display instruction following reset cancellation, no instruction or RAM data
access from the MPU is accepted. Here, reset input must be held back for at least 1 ms, and an issuing
instruction must wait for 1,000 clock cycles after reset is canceled because the display clearing continues
after reset cancellation.
Instruction Set Initialization:
1. Clear display executed (Writes 20H to DDRAM)
2. Return home executed (Sets the address counter (AC) to 00H to select DDRAM)
3. Start oscillator executed
4. Driver output control (SGS = 0, CMS = 0)
5. Power control (AMP = 0: LCD power off, SLP = 0: Sleep mode off, STB = 0: Standby mode off)
6. Single boost (BT1/0 = 00), 1/6.5 bias drive (BS2/1/0 = 000), Weak contrast (CT4-0 = 00000)
7. Entry mode set (ROM = 0: CGROM bank 0, I/D = 1: Increment by 1, GR = 0: Character display mode)
8. Cursor display off (B/W = 0, C = 0, B = 0)
9. Display on/off control (D = 0: Display off, CEN = 0: Normal position, LC = 0: Line-cursor off)
10.Display control (NL2/1/0 = 100: 1/34 duty ratio)
11.Double-height display off (DL3/2/1 = 000)
l2. Vertical scroll control (SN2/1/0 = 000: First line displayed at the top, SL2/1/0: First raster-row
displayed at the top of the first line)
13.Horizontal scroll off (SEE = 0, SE2/1 = 00, SE4/3 = 00, SQ2/1/0 = 000)
14.Key scan control (IRE = 0: Key scan interrupt (IRQ) generation disabled, KF1/0 = 00: Key scan set to
32 cycles)
15. Port control (PT2/1/0 = 000: PORT2/1/0 output = GND level)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66726 | Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動(dòng)器) |
| HD66727 | 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) |
| 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) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66725A03TA0L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER |
| HD66726 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66726A03TB0L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC |
| HD66727 | 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 |
| HD66727A03 | 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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