參數(shù)資料
型號： HD66728
廠商： Hitachi,Ltd.
英文描述： 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器)
中文描述： 112 × 80點圖形LCD控制器/驅(qū)動器（112 × 80點圖形液晶顯示控制器）
文件頁數(shù)： 60/138頁
文件大?。?/td> 2158K
代理商： HD66728
HD66728
60
Reset Function
The HD66728 is 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 the clear
display instruction is executed following reset cancellation, no instruction or RAM data access from the
MPU is accepted. The reset input must be held for at least 1 ms. Any initializing instruction must wait for
1,000 clock cycles after the reset is canceled so that execution of the clear display instruction can be
completed.
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 oscillation 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), 1/10 bias drive (BS2/1/0 = 000), Weak contrast (CT5-0 = 00000)
7. Entry mode set (REV = 0: Normal display, I/D = 1: Increment by 1, GR = 0: Character display mode,
RDM = 0: Automatically update after reading, SPR = 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 line control (NL3/2/1/0 = 1001: 1/80 duty ratio)
11.Double-height display off (DL10–1 = 0000000000)
l2. Vertical scroll control (SN3/2/1/0 = 0000: First line displayed at the top, SL2/1/0: First raster-row
displayed at the top of the first line, PS1/0 = 00: Partial scroll off)
13.CGROM memory bank 0 selection (RL10–1 = 0000000000)
14.Key scan control (IRE = 0: Key scan interrupt (IRQ) generation disabled, KF1/0 = 00: Key scan set to
64 cycles, KSB = 0: Key standby mode off)
15.Port control (PT2/1/0 = 000: PORT2/1/0 output = GND level)
16.1/64-divided clock boost (DCC = 0)
17. B-pattern waveform AC drive (B/C = 0, EOR = 0, NW4/3/2/1/0 = 00000)
RAM Data Initialization:
1. DDRAM
All addresses are initialized to 20H by the clear display instruction after the reset is canceled.
2. CGRAM/SEGRAM
This is not automatically initialized by reset input but must be initialized by software while display is
off (D = 0).
相關(guān)PDF資料
PDF描述
HD66730 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
HD66731 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
HD66731A00TB0L 122 x 32 pixel format, Compact LCD size
HD66731A00TA0L Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HD66731A01TA0L 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
HD66729 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
HD66730 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HD66730A00FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HD66730A01FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HD66731 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
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