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PT6955 V1.5

- 6 -

June, 2005

LED Driver IC

PT6955

COMMAND 2: DATA SETTING COMMANDS

The Data Setting Commands executes the Data Write Mode for PT6955. The Data Setting Command,

the bits 5 and 6 (b4, b5) are ignored, bit 7 (b6) is given the value of “1” while bit 8 (b7) is given the value

of “0”. Please refer to the diagram below.

When power is turned ON, bit 4 to bit 1 (b3 to b0) are given the value of “0”.

MSB

LSB

0

1

-

-

b3 b2 b1 b0

Not Relevant

Data Write Mode Settings:

00: Write Data to Display Mode

Address Increment Mode Settings (Display Mode)

0: Increment Address after Data has been Written

1: Fixed Address

Mode Settings:

0: Normal Operation Mode

1: Test Mode