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The LCD can not display intensified character like CRT
display, thus double dot character is used for distinction
between normal character and intensified character.
INTEN1 signal is used to select either single dot character
or double dot character font.
INTEN1
=
Low •••••• Single dot character
INTEN1
=
high ••••• Double dot character
RSA01-RSA21, and RSA31 are raster scan address.
The RSA01
is the lowest bit (LSB).
TABLE 0-5
ROM Address Assignment
RSA31
RSA21
RSA11
RSA01
L
L
L
0
N
L
L
H
1
8x8
0
T
L
H
L
2
Character
L
H
H
3
U
H
H
L
4
S
E
H
H
H
5
0
H
H
L
6
H
H
H
7
III
1 byte
~
D - 16
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