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ML9203 Datasheet(PDF) 21 Page - OKI electronic componets

Part # ML9203
Description  5 x 7 Dot Character x 16-Digit x 2-Line Display Controller/Driver with Character RAM
PDF  31 Pages
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Manufacturer  OKI [OKI electronic componets]
Direct Link  http://www.oki.com
Logo OKI - OKI electronic componets

ML9203 Datasheet(HTML) 21 Page - OKI electronic componets

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ML9203-xx
21/30
5. Display duty set
(writes display duty value to duty cycle register)
Display duty adjusts brightness in 1024 stages using 10-bit data.
When power is turned on or when the RESET signal is input, the duty cycle register value is
"0". Always execute this instruction before turning the display on, then set a desired duty
value.
[Command format]
D0 (LSB) to D9 (MSB) : Display duty data (10 bits: 1024 stages)
* : Don't care
[Relation between setup data and controlled COM duty]
D0 D1
**1010
B0 B1 B2 B3 B4 B5 B6 B7
1st byte
LSB
MSB
: selects display duty set mode and sets duty value (lower 2 bits)
D2 D3 D4 D5 D6 D7 D8 D9
B0 B1 B2 B3 B4 B5 B6 B7
2nd byte
(2nd)
LSB
MSB
: sets duty value (upper 8 bits)
HEX
D0
D1
D2
COM duty
000
0
0
0
0/1024
001
1
0
0
1/1024
002
0
1
0
2/1024
3CE
0
1
1
974/1024
3CF
1
1
1
975/1024
3D0
0
0
0
976/1024
3D1
1
0
0
976/1024
3FF
1
1
1
976/1024
D3
0
0
0
1
1
0
0
1
D4
0
0
0
0
0
1
1
1
D5
0
0
0
0
0
0
0
1
D6
0
0
0
1
1
1
1
1
D7
0
0
0
1
1
1
1
1
D8
0
0
0
1
1
1
1
1
D9
0
0
0
1
1
1
1
1
The state when power is turned on or when RESET signal is input.



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