PT6311-LQ PTC [Princeton Technology Corp], PT6311-LQ Datasheet - Page 12

• Manufacturer Part Number: PT6311-LQ
• Description: VFD Driver/Controller IC
• Manufacturer: PTC [Princeton Technology Corp]

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”.
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).
V3.2
Please refer to the diagram below.
MSB
MSB
1
1
1
0
Not Relevant
b5
-
b4
-
b3
b3
b2
b2
b1
b1
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:
Address: 00H to 2FH
Display On
b0
b0
LSB
LSB
12
November 2009
PT6311