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PT6324_10 Datasheet, PDF (6/16 Pages) Princeton Technology Corp – VFD Driver/Controller IC | |||
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PT6324
FUNCTION DESCRIPTION
COMMANDS
Commands determine the display mode and status of PT6324. A command is the first byte (b0 to b7) inputted to PT6324
via the DIN Pin after STB Pin has changed from âHIGHâ to âLOWâ State. If for some reason the STB Pin is set to âHIGHâ
while data or commands are being transmitted, the serial communication is initialized, and the data/commands being
transmitted are considered invalid.
COMMAND 1: DISPLAY MODE SETTING COMMANDS
PT6324 provides 8 display mode settings as shown in the diagram below: As stated earlier a command is the first one
byte (b0 to b7) transmitted to PT6324 via the DIN Pin when STB is âLOWâ. However, for these commands, the bits 5 to
8 (b4 to b7) are given a value of â0â.
The Display Mode Setting Commands determine the number of segments and grids to be used (1/8 to 1/16 duty, 24
segments). When these commands are executed, the display is forcibly turned off. A display command âONâ must be
executed in order to resume display. If the same mode setting is selected, no command execution is take place,
therefore, nothing happens.
When Power is turned âONâ, the 16-digit, 24-segment modes is selected.
MSB
LSB
0 0 0 0 b3 b2 b1 b0
Display mode settings:
0000: 8 digits, 24 segments
1000: 9 digits, 24 segments
1001: 10 digits, 24 segments
1010: 11 digits, 24 segments
1011: 12 digits, 24 segments
1100: 13 digits, 24 segments
1101: 14 digits, 24 segments
1110: 15 digits, 24 segments
1111: 16 digits, 24 segments
V1.5
6
June 2010
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