KS0040 Datasheet, PDF (20/73 Pages) Samsung semiconductor – 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD

65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
KS0040
Character Generator RAM (CGRAM)
CGRAM is used for user defined character pattern. It can generate 32,16 X 16 dots full-size fonts include cursor
position. The capacity of CGRAM can support bitmap graphics 128 X 64 dot. To use the character pattern in
CGRAM write the character code into DDRAM like table 6.
Table 6. Relationship between Character Code (DDRAM) and Character Pattern (CGRAM)
Character code
(DDRAM data)
0000h
CGRAM address
RRRR
3210
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
AAAAAA
654321
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
CGRAM data
(A0 = 0)
D D D D D DDD
7 6 5 4 3 21 0
CGRAM data
(A0 = 1)
D D D D D DD D
7 6 5 4 3 21 0
Pattern
number
Pattern 1
:
:
:
:
:
:
001Fh
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
1111
110000
110001
110010
110011
110100
110101
110110
110111
111000
111001
111010
111011
111100
111101
111110
111111
Pattern 32
17