HD66710 Datasheet, PDF (15/73 Pages) Hitachi Semiconductor – (Dot Matrix Liquid Crystal Display Controller/Driver)

HD66710
• 4-line display (NW = 1)
 Case 1: The first line is displayed from COM1 to COM8, the second line is displayed from COM9
to COM16, the third line is displayed from COM17 to COM24, and the fourth line is displayed
from COM25 to COM32. Care is required because the DDRAM addresses of each line are not
consecutive. For example, the case is shown in Figure 6 where 8 × 4-line display is performed
using the HD66710.
When a display shift operation is performed, the DDRAM address shifts. See Figure 6.
123456 78
COM1 to 8 00 01 02 03 04 05 06 07
COM9 to 16 ^{20 21 22 23 24 25 26 27}
COM17 to 24 40 41 42 43 44 45 46 47
COM25 to 32 ^{60 61 62 63 64 65 66 67}
Display position
DDRAM address
12 3456 78
COM1 to 8 01 02 03 04 05 06 07 08
COM9 to 16
COM17 to 24
21 22 23 24 25 26 27 28
41 42 43 44 45 46 47 48
(Left shift display)
COM25 to 32 ^{61 62 63 64 65 66 67 68}
1 2 3456 78
13 00 01 02 03 04 05 06
33 20 21 22 23 24 25 26
53 40 41 42 43 44 45 46
(Right shift display)
73 60 61 62 63 64 65 66
Figure 6 4-Line Display
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