HD66724 Datasheet, PDF (80/117 Pages) Hitachi Semiconductor – (Graphics LCD Controller/Driver with Key Scan Function)

HD66724/HD66725
Graphics Display Function
The HD66724/HD66725 have a character display mode (GR = 0) where CGRAM or CGROM is used to
display font patterns, and a graphics display mode (GR = 1) where bit pattern data is set to CGRAM to
display given patterns. In the character display mode, an LCD panel display can easily be provided by
sending byte-per-character character codes to DDRAM, but any pattern not set to CGROM or CGRAM
cannot be displayed. In the graphics display mode, all bit pattern data to be displayed must be sent
although any pattern can be displayed. The HD66724/HD66725 support both of these modes which can
easily be switched using the GR bit.
In the graphics display mode, kanji characters, special symbols, and graphic icons can be displayed. In the
HD66724, up to a 72 x 26-dot display is allowed using CGRAM and SEGRAM. Thus, for a 12 x 12-dot
kanji font, up to a 2-line x 6-character kanji display is allowed. In the HD66725, up to a 96 x 26-dot
display is allowed, and up to a 2-line x 8-character kanji display is allowed for a 12 x 12-dot kanji font.
kanji
kanji
Figure 44 Kanji Display in Graphics Display Mode
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