HD66717 Datasheet, PDF (71/90 Pages) Hitachi Semiconductor – (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)

HD66717
Double-Height Display
The HD66717 can double the height of any desired line from the first to third lines. A line can be selected
by the DL3 to DL1 bits as listed in Table 25. All the standard font characters stored in the CGROM and
CGRAM can be doubled in height, providing an easy-to-see display. Note that there should be no space
between lines for double-height display (Figure 43).
Table 25 Double-Height Display Specifications
2-Line Display
DL3 DL2 DL1 (NL1, NL0 = 01)
0 0 0 1st & 2nd lines: normal
0 0 1 1st line: double-height
0 1 0 Disabled
0 1 1 1st line: double-height
1 0 0 1st & 2nd lines: normal
1 0 1 1st line: double-height
1 1 0 Disabled
1 1 1 1st line: double-height
3-Line Display
(NL1, NL0 = 10)
1st to 3rd lines: normal
1st line: double-height
2nd line: normal
2nd line: double-height
1st line: normal
Disabled
Disabled
1st line: double-height
2nd line: normal
2nd line: double-height
1st line: normal
Disabled
4-Line Display
(NL1, NL0 = 11)
1st to 4th lines: normal
1st line: double-height
2nd & 3rd lines: normal
2nd line: double-height
1st & 3rd lines: normal
1st & 2nd lines: double-height
3rd line: double-height
1st & 2nd lines: normal
Disabled
Disabled
1st & 2nd lines: double-height
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