PT6311_10 Datasheet, PDF (12/22 Pages) Princeton Technology Corp – VFD Driver/Controller IC

PT6311
COMMAND 3: ADDRESS SETTING COMMANDS
Address Setting Commands are used to set the address of the display memory. The address is considered valid if it has
a value of “00H” to “2FH”. If the address is set to 30H or higher, the data is ignored until a valid address is set. When
power is turned ON, the address is set at “00H”.
Please refer to the diagram below.
MSB
LSB
1 1 b5 b4 b3 b2 b1 b0
Address: 00H to 2FH
COMMAND 4: DISPLAY CONTROL COMMANDS
The Display Control Commands are used to turn ON or OFF a display. It also used to set the pulse width. Please refer to
the diagram below. When the power is turned ON, a 1/16 pulse width is selected and the displayed is turned OFF (the
key scanning is stopped).
MSB
LSB
1 0 - - b3 b2 b1 b0
Not Relevant
Dimming Quantity Settings:
000: Pulse width = 1/16
001: Pulse width = 2/16
010: Pulse width = 4/16
011: Pulse width = 10/16
100: Pulse width – 11/16
101: Pulse width = 12/16
110: Pulse width = 13/16
111: Pulse width = 14/16
Display Settings:
0: Display Off (Key Scan Continues)
1: Display On
V3.2
12
November 2009