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參數(shù)資料
| 型號(hào)： | HD66740TB0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN |
| 中文描述： | 112 × 80點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 31/95頁(yè) |
| 文件大?。?/td> | 856K |
| 代理商： | HD66740TB0 |
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HD66740
31
Read Data from RAM
RD7-0 :
Read 8-bit data from the CGRAM. In the parallel bus interface mode, the first-byte data read will
be invalid immediately after the RAM address set, and the consecutive second-byte data will be read
normally. In the serial interface mode or I2C bus interface mode, two bytes will be invalid immediately
after the start byte, and the consecutive third-byte data will be read normally. For details, see the Serial
Data Transfer section.
After a RAM read, when RDM = 0, the address is automatically incremented or decremented by 1
according to the I/D bit. When RDM = 1, the address is not updated.
R/W RS DB7
DB0
1
1
DB6 DB5 DB4 DB3 DB2 DB1
RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0
Figure 14 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
Address: N
±
1 (RDM = 0)
Address: N (RDM = 1)
Address: N
±
1 (RDM = 0)
Address: N (RDM = 1)
Figure 15 RAM Read Sequence
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66740WTB0 | 112 x 80-dot Graphics LCD Controller/Driver |
| HD66751 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66750TB0 | 122 x 32 pixel format, Compact LCD size |
| HD66750 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
| HD66751TB0 | 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66740WTB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver |
| HD66741 | 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 |
| HD66750 | 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 |
| HD66750TB0 | 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 |
| HD66751 | 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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