msm9202 Oki Semiconductor, msm9202 Datasheet - Page 23

• Manufacturer Part Number: msm9202
• Description: 5 7 Dot Character 16-digit Display Controller/driver With Character Ram
• Manufacturer: Oki Semiconductor

¡ Semiconductor
5. Display duty set
[Command format]
[Relation between setup data and controlled COM duty]
(writes display duty value to duty cycle register)
Display duty adjusts contrast in 8 stages using 3-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.
1st byte
HEX
0
1
2
3
4
5
6
7
D0 (LSB) to D2 (MSB) : display duty data (3 bits: 8 stages)
D0
0
1
0
1
0
1
0
1
LSB
D0 D1 D2
B0 B1 B2 B3 B4 B5 B6 B7
D1
0
0
1
1
0
0
1
1
D2
0
0
0
0
1
1
1
1
*
1
* : don't care
COM duty
10/16
11/16
12/16
13/16
14/16
15/16
8/16
9/16
0
1
MSB
0
: selects display duty set mode and sets duty value
¨
(The state when power is turned on or when RESET
signal is input.)
FEDL9202-04
MSM9202-01
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