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HD44780 Datasheet(PDF) 11 Page - Hitachi Semiconductor |
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HD44780 Datasheet(HTML) 11 Page - Hitachi Semiconductor |
11 / 59 page HD44780U 11 • 2-line display (N = 1) (Figure 4) 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 HD44780 is used, 8 characters × 2 lines are displayed. See Figure 5. When display shift operation is performed, the DDRAM address shifts. See Figure 5. 00 01 02 03 04 26 27 DDRAM address (hexadecimal) Display position 12 3 4 5 39 40 . . . . . . . . . . . . . . . . . . 40 41 42 43 44 66 67 . . . . . . . . . . . . . . . . . . Figure 4 2-Line Display DDRAM address Display position 1234 5 678 00 01 02 03 04 05 06 07 For shift left For shift right 40 41 42 43 44 45 46 47 01 02 03 04 05 06 07 08 41 42 43 44 45 46 47 48 00 01 02 03 04 05 06 40 41 42 43 44 45 46 27 67 Figure 5 2-Line by 8-Character Display Example |
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