IVP wrote 2014-04-26 13:14:
>> Btw, a 16*2 HD44780 display has ram for more rows and
>> characters (don't remember how many now) and the ram not
>> used for the actual display can be used as external ram for
>> the PIC as long as the display isn't cleared with the clr command.
>
> There are 8 x 8 bytes of redefinable character memory (CGRAM)
> which can be used, and they aren't affected by the clear command
> ($01), which writes spaces to the display (DDRAM)
>
> Joe
>

Yes, but if you'd like to display all swedish national
characters (=C5=C4=D6=E5=E4=F6) you need some of them... :-)

Jan-Erik.

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