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VFD Driver/Controller IC
COMMAND 2: DATA SETTING COMMANDS
PT6312
The Data Setting Commands executes the Data Write or Data Read Modes for PT6312. 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, the bit 4 to bit 1 (b3 to b0) are given the value of “0”.
MSB
0
1
-
-
LSB
b3 b2 b1 b0
Data write & read mode settings:
00: Write data to display mode
01: Write data to LED port
10: Read Key data
11: Read SW data
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
Not relevant
PT6312 V2.6
-7-
December, 2005
PTC [ PRINCETON TECHNOLOGY CORP ]
