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參數(shù)資料
| 型號： | HD66705U |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動器) |
| 中文描述： | 低功耗點陣液晶顯示控制器/驅(qū)動器（圖形液晶顯示控制器/驅(qū)動器） |
| 文件頁數(shù)： | 37/81頁 |
| 文件大?。?/td> | 426K |
| 代理商： | HD66705U |
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HD66705U
37
Write Data to RAM
The write data to RAM instruction (Figure 20) writes 8-bit data to annunciator or DDRAM, or lower 5-bit
data to SEGRAM or CGRAM that is selected by the previous specification of the address set instruction
(annunciator/SEGRAM address set, CGRAM address set, or DDRAM address set).
After a write, the address is automatically incremented or decremented by 1 according to the I/D bit setting
in the entry mode instruction.
The annunciator address is not automatically updated; it must be specifically updated to write data to a
different address. During sleep and standby modes, DDRAM, CGRAM, or SEGRAM cannot be accessed.
Read Data from RAM
The read data from RAM instruction (Figure 21), reads 8-bit data from DDRAM, or 5-bit binary data from
CGRAM or SEGRAM that is selected by the previous specification of the address set instruction
(SEGRAM address set, CGRAM address set, or DDRAM address set). The unused upper three bits of
CGRAM or SEGRAM data are read as 000; annunciator data cannot be read. If no address is specified by
the address set instruction just before this instruction, the first data read will be invalid. When executing
serial read instructions, the next address is normally read from the next address.
After a read, the address is automatically incremented or decremented by 1 according to the I/D bit setting
in the entry mode instruction.
Table 17 lists the above instructions.
1
RS R/W DB7
DB0
0
D
D
D
D
D
D
D
D
Figure 20 Write Data to RAM Instruction
1
RS R/W DB7
DB0
1
D
D
D
D
D
D
D
D
Figure 21 Read Data from RAM Instruction
相關PDF資料 |
PDF描述 |
|---|---|
| HD66710 | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 16 AMP SPDT MINIATURE POWER RELAY |
| HD66710A00TF | (Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712U | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66712 | Dot-Matrix Liquid Crystal Display Controller/Driver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HD66710 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66710A00TF | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver) |
| HD66712 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver |
| HD66712A00TA0 | 制造商:Renesas Electronics Corporation 功能描述: |
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