參數(shù)資料
型號(hào)： ML9041
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(dòng)
文件頁(yè)數(shù)： 46/55頁(yè)
文件大?。?/td> 537K
代理商： ML9041
Semiconductor
ML9041
46/54
Initial Setting of Instructions
(a) Data transfer from and to the CPU using 8 bits of DB0 to DB7
1)
Turn on the power.
2)
Wait for 15 ms or more after V
DD
has reached 2.5V or higher.
3)
Set “8 bits” with the Function Setting instruction.
4)
Wait for 4.1 ms or more.
5)
Set “8 bits” with the Function Setting instruction.
6)
Wait for 100
m
s or more.
7)
Set “8 bits” with the Function Setting instruction.
8)
Check the Busy Flag for No Busy (or wait for 100
m
s or more).
9)
Set “8 bits”, “Number of LCD lines” and “Font size” with the Function Setting instruction.
(After this, the number of LCD lines and the font size cannot be changed.)
10) Check the Busy Flag for No Busy.
11) Execute the Display Mode Setting Instruction, Display Clear Instruction, Entry Mode
Setting instruction and Arbitrator Display Line Setting Instruction.
12) Check the Busy Flag for No Busy.
13) Initialization is completed.
An example of instruction code for 3), 5) and 7)
(b) Data transfer from and to the CPU using 8 bits of DB4 to DB7
1)
Turn on the power.
2)
Wait for 15 ms or more after V
DD
has reached 2.5V or higher.
3)
Set “8 bits” with the Function Setting instruction.
4)
Wait for 4.1 ms or more.
5)
Set “8 bits” with the Function Setting instruction.
6)
Wait for 100
m
s or more.
7)
Set “8 bits” with the Function Setting instruction.
8)
Check the Busy Flag for No Busy (or wait for 100
m
s or longer).
9)
Set “4 bits” with the Function Setting instruction.
10) Wait for 100
m
s or longer.
11) Set “4 bits”, “Number of LCD lines” and “Font size” with the Initial Setting instruction.
(After this, the number of LCD lines and the font size cannot be changed.)
12) Check the Busy Flag for No Busy.
13) Execute the Display Mode Setting Instruction, Display Clear Instruction, Entry Mode
Setting instruction and Arbitrator Display Line Setting Instruction
14) Check the Busy Flag for No Busy.
15) Initialization is completed.
An example of instruction code for 3), 5) and 7)
RS
1
1
RS
0
0
R/
W
0
DB
7
0
DB
6
0
DB
5
1
DB
4
1
DB
3
￥
DB
2
￥
DB
1
￥
DB
0
￥
￥
: Don't Care
RS
1
1
RS
0
0
R/
W
0
DB
7
0
DB
6
0
DB
5
1
DB
4
1
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