S6A0074 Datasheet, PDF (17/68 Pages) Samsung semiconductor – 34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
S6A0074
CGROM (CHARACTER GENERATOR ROM)
CGROM has 5 X 8-dot 240 character pattern.
CGRAM (CHARACTER GENERATOR RAM)
CGRAM has up to 5 × 8 dots 8 characters. By writing font data to CGRAM, user defined character can be used
(refer to Table 4).
5 × 8 dots Character Pattern
Table 4. Relationship Between Character Code (DDRAM) and Character Pattern (CGRAM)
Character Code (DDRAM data)
CGRAM Address
CGRAM Data
D7 D6 D5 D4 D3 D2 D1 D0 A5 A4 A3 A2 A1 A0 P7 P6 P5 P4 P3 P2 P1 P0
0 0 0 0 x 0 0 0 0 0 0 0 0 0 B1 B0 x 0 1 1 1 0
001
10001
010
10001
.
.
.
.
.
011
.
11111
.
.
100
.
10001
.
.
.
.
.
101
.
10001
110
10001
111
00000
.
.
.
.
.
.
.
.
0 0 0 0 x 1 1 1 1 1 1 0 0 0 B1 B0 x 1 0 0 0 1
001
10001
010
10001
.
.
.
.
.
011
.
11111
.
.
100
.
10001
.
.
.
.
.
101
.
10001
110
10001
111
00000
Pattern
Number
Pattern 1
.
.
Pattern 8
17