參數(shù)資料
型號: 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): 51/117頁
文件大?。?/td> 834K
代理商: HD66725
HD66724/HD66725
51
Read Data from RAM
RD7-0 :
Reads the 8-bit data from DDRAM, CGRAM or SEGRAM. DDRAM/CGRAM/SEGRAM is
selected by the previous specification of the RM 1/0 bit. In the parallel bus interface mode, the first-byte
data read will be invalid immediately after the RAM address is set, and the subsequent second-byte data
will be read normally. In the serial interface mode, two bytes will be invalid immediately after the start
byte, and the subsequent third-byte data will be read normally. For details, see the Serial Data Transfer
section. After a DDRAM read, the address is automatically incremented or decremented by 1 according to
the I/D bit setting in the entry mode set instruction.
R/W RS DB7
DB0
1
1
DB6 DB5 DB4 DB3 DB2 DB1
RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0
Figure 23 Read Data from RAM Instruction
Address: N set
Dummy read (invalid data)
Read (data of address N)
First byte
Second byte
i) Parallel bus interface mode
Address: N set
Dummy read (invalid data)
Read (data of address N)
First byte
Third byte
ii) Serial interface mode
Start byte
Start byte
Dummy read (invalid data)
Second byte
Figure 24 RAM Read Sequence
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)
HD66731 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
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