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| 型號： | UPD16682W |
| 廠商： | NEC Corp. |
| 英文描述： | 1/65 DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM |
| 中文描述： | 1 / 65稅LCD控制器/驅(qū)動器，片內(nèi)RAM |
| 文件頁數(shù)： | 31/56頁 |
| 文件大小： | 435K |
| 代理商： | UPD16682W |
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Data Sheet S13368EJ3V0DS00
31
μ
PD16682
12.12 Read Modify Write
This command is used in a pair with the end command. When this command has been input, the column address is
not changed by the display data read command and can be incremented (+1) only by the display data write
command. This status is retained until an end command is input. Once an end command has been input, the
column address returns to the address that was used when the read modify write command was input. This function
can be used to lighten the burden on the MPU when repeatedly modifying data in special display areas such as the
blinking cursor.
A0
E, /RD
R,/W, /WR
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
0
1
0
1
1
1
0
0
0
0
0
Caution The commands other than the display data read/write commands can be used even
during read modify write mode. However, the column address set command cannot be
used.
Figure 12
1. Sequence for Cursor Display
No
Yes
Page address set
Column address set
Read modify write
Dummy read
Data read
Data write
Changes completed
End
Data processing
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