參數(shù)資料
型號： HD66724
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)動器驅(qū)動程序）
文件頁數(shù)： 36/117頁
文件大小： 834K
代理商： HD66724
HD66724/HD66725
36
Instruction Descriptions
Key Scan Data Read
In the serial interface mode, the key scan data read instruction reads scan data in scan registers SCAN0 to
SCAN3. Following transfer of the start byte, scan data read operation starts from scan register SCAN0 and
proceeds in the order of SCAN1, SCAN2, and SCAN3. When data read from SCAN 0 to SCAN3 is
completed, the operation starts from SCAN0 again. For details, see the Key Scan Control section.
R/W RS DB7
DB0
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
1
0
1
1
SE2 SE1
SE4 SE3
0
0
0
1
1
0
0
SQ2 SQ1 SQ0
SSE
(SSE = 0)
(SSE = 1)
Figure 3 Key Scan Data Read Instruction
Clear Display
The clear display instruction writes space code 20H (the character pattern for character code 20H must be a
blank pattern) into all DDRAM addresses. It then sets DDRAM address 0 into the address counter. It also
sets I/D to 1 (increment mode) in the entry mode set instruction. Since the execution of this instruction
needs 85 clock cycles, do not send the next instruction during the execution time.
R/W RS DB7
DB0
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
0
0
0
0
1
Figure 4 Clear Display Instruction
Return Home
The return home instruction sets DDRAM address 0 into the address counter. The DDRAM contents do not
change. The cursor or blinking goes to the top left of the display.
R/W RS DB7
DB0
0
0
DB6 DB5 DB4 DB3 DB2 DB1
0
0
0
0
0
0
1
0
Figure 5 Return Home Instruction
相關(guān)PDF資料
PDF描述
HD66725 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
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)動器)
HD66728 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器)
HD66730 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66724/HD66725 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66724RA03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
HD66725 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
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
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