PT6547 Datasheet, PDF (8/35 Pages) Princeton Technology Corp – LCD Driver IC with Key Input Function

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LCD Driver IC with Key Input Function
PT6547
COMMAND 2: DATA/OUTPUT-2 STATE SETTING COMMANDS
The Data Setting Commands executes the Data Write or Data Read Modes for PT6547. The data
Setting Command, the bit 7 (b6) is given the value of “1” while bit 8 (b7) and bit 6 to bit 5 (b5 to b4) is
given the value of “0”. Please refer to the diagram below.
When power is turned on, the bit 4 to bit 1 (b3 to b0) are given the value of “0”.
MSB
LSB
0 1 0 0 b3 b2 b1 b0
Data Write & Read Mode Setting:
00: Write data to Display RAM
01: Write data to General Purpose Output port
10: Read Key data
11: Segment/Key Scan Output setting
Address Increment Mode Setting (Display Mode):
0: Increment address after data has been written
1: Fixes address
Mode Setting:
0: Normal Operation Mode
PT6547 V1.2
-8-
January, 2006