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VFD Driver/Controller IC
PT6315
PT6315 v2.0
Page 17
Sep. 2002
RECOMMENDED SOFTWARE FLOWCHART
Note: 1. Command 1: Display Mode Commands
2. Command 2: Data Setting Commands
3. Command 3 : Address Setting Commands
4. Command 4: Display Control Commands
5. When IC power is applied for the first time, the contents of the Display RAM are not defined; thus, it
is strongly suggested that the contents of the Display RAM must be cleared during the initial setting.
Figure 17: Recommended Software Flowchart
S T A R T
S E T
C O M M A N D 2
( W r i t e D a t a )
S E T
C O M M A N D 2
( R E A D K E Y &
W R I T E D A T A
I N C L U D E D )
S E T
C O M M A N D 3
E N D
I N I T I A L
S E T T I N G
M A I N
L O O P
S E T
C O M M A N D 3
C l e a r D i s p l a y R A M
( S e e N o t e 5 )
S E T
C O M M A N D 1
M A I N
P R O G R A M
S E T
C O M M A N D 4
S E T
C O M M A N D 4
( 8 8 H ~ 8 F H : D i s p l a y
O N )
D e l a y 2 0 0 m s
S E T
C O M M A N D 1
