Datasheet
GE-C4002A -TMI-JT/R page 12/27 24.02.2011
Character Generator ROM (CGROM)
The CGROM generate 5×8 dot or 5×10 dot character patterns from 8-bit character codes. See
Table 2.
Character Generator RAM (CGRAM)
In CGRAM, the user can rewrite character by program. For 5×8 dots, eight character patterns can
be written, and for 5×10 dots, four character patterns can be written.
Write into DDRAM the character code at the addresses shown as the left column of table 1. To
show the character patterns stored in CGRAM.
Display position DDRAM address
00
01
02
03
04
05
06
21
22
23
24
25
26
27
40
41
42
43
44
45
46
61
62
63
64
65
66
67
2-Line by 40-Character Display
1 2 3 4 5 6 7 ……. 34 35 36 37 38 39 40