¡ Semiconductor

ML9203-xx

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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.