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PT6302_10 Datasheet, PDF (11/27 Pages) Princeton Technology Corp – VFD Driver/Controller IC with Character RAM
Please refer below for the CGROM Address and CGRAM Address Setting relationship.
HEX X0 X1 X2 CGROM Address
00
0
0
0 RAM00(00000000B)
01
1
0
0 RAM01(00000001B)
02
0
1
0 RAM02(00000010B)
03
1
1
0 RAM03(00000011B)
04
0
0
1 RAM04(00000100B)
05
1
0
1 RAM05(00000101B)
06
0
1
1 RAM06(00000110B)
07
1
1
1 RAM07(00000111B)
The CGROM and CGRAM output area placement is given in the table below.
C0 C1 C2 C3 C4
C5 C6 C7 C8 C9
C10 C11 C12 C13 C14
C15 C16 C17 C18 C19
C20 C21 C22 C23 C24
C25 C26 C27 C28 C29
C30 C31 C32 C33 C34
Area corresponds to the 6th Byte (5th Column)
Area corresponds to the 5th Byte (4th Column)
Area corresponds to the 4th Byte (3rd Column)
Area corresponds to the 3rd Byte (2nd Column)
Area corresponds to the 2nd Byte (1st Column)
PT6302
Note: The Character Generator ROM (CGROM) consists of 8 CGROM Address bits generating 5 x 7 dot matrix character patterns. It can store up to a
maximum of 248 types of character patterns.
V2.1
11
August 2010