ST7070
ꢃ
2-line display (N = 1) (Figure 4)
Display
Position
38
39
40
1
2
3
4
5
6
00 01 02 03 04 05
40 41 42 43 44 45
………………..
………………..
25 26 27
65 66 67
DDRAM
Address
(hexadecimal)
Figure 4 2-Line Display
Case 1: When the number of display characters is less than 40 2 lines, the two lines are displayed from the
head. Note that the first line end address and the second line start address are not consecutive. For example,
when just the ST7070 is used, 16 characters 2 lines are displayed. See Figure 5.
When display shift operation is performed, the DDRAM address shifts. See Figure 5.
Display
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16
Position
DDRAM
Address
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F
For
Shift
Left
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10
41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50
For
Shift
Right
27 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E
67 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E
Figure 5 2-Line by 16-Character Display Example
Case 2: For a 16-character x 2-line display, See Figure 5.
When display shift operation is performed, the DDRAM address shifts. See Figure 5.
V1.4
10/51
2009/04/29
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
