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| 型號： | MSM6562B-xx |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | DOT MATRIX LCD CONTROLLER DRIVER |
| 中文描述： | 點(diǎn)陣LCD控制器驅(qū)動 |
| 文件頁數(shù)： | 30/50頁 |
| 文件大?。?/td> | 496K |
| 代理商： | MSM6562B-XX |
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Semiconductor
MSM6562B-xx
30/50
(1) Display clear
When this instruction is executed, the LCD display is cleared.
The I/D value for the entry mode set instruction is set to 1 (increment). The S value for the
entry mode set instruction does not change.
When the cursor and blink are being displayed, the blinking and cursor position moves
to the left end of the LCD (the left end of the first line in the 2-line display mode).
(Note)
The address counter (ADC) goes to "00" (hex.) of the DD RAM address. The
execution time when the OSC oscillation frequency is 250kHz is 1.64ms (max.).
13. Description of Instructions
The instruction code is defined as the signal through which the MSM6562B-xx is accessed by
the CPU.
The MSM6562B-xx begins operation upon receipt of the instruction code input.
As the internal processing operation of MSM6562B-xx is started with a timing that does not affect
the LCD display, the busy status continues longer than the CPU cycle time.
Under the busy status (when the busy flag is set to "H"), the MSM6562B-xx does not execute any
instructions other than the busy flag read.
Therefore, it must be confirmed before an instruction code is input from the CPU that the busy
flag is set to "L".
(2) Cursor home
When this instruction is executed, the cursor and blinking position move to the left end
of the LCD (to the left end of the first line in the 2-line display mode) when the cursor and
blink are being displayed.
When the display is in shift, the display returns to its original position before shifting.
(Note)
All DD RAM data goes to "20" (hex.), while the address counter (ADC) goes to
"00" (hex.) of the DD RAM address. The execution time when the OSC
oscillation frequency is 250kHz is 1.64ms (max.).
1
RS
1
0
RS
0
0
R/W
0
DB
7
0
DB
6
0
DB
5
0
DB
4
0
DB
3
0
DB
2
0
DB
1
1
DB
0
Instruction code
1
RS
1
0
RS
0
0
R/W
0
DB
7
0
DB
6
0
DB
5
0
DB
4
0
DB
3
0
DB
2
1
DB
1
X
DB
0
Instruction code
X : Don't Care
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