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The character code used to specify a display character is determined based on the address in the
CRT display ROM in which that character data is stored.
Assume that 1 character data is stored in addresses 10XX0
and 10YY0
to 10YYF
16
In other words, a character code is constructed with the low-order second and third digits (hexadecimal
notation) of the 5-digit address (10000
A character code is "YY
Table 2.11.3 shows the character code table.
Table 2.11.3 Character code table (be omitted partly)
Character code
00
16
01
16
02
16
03
16
:
7E
16
7F
16
80
16
81
16
:
FD
16
FE
16
FF
16
FUNCTIONAL DESCRIPTION
(YY denotes "XX + 800
16
to 107FF
16
" in addresses 11000
16
Character data stored address
Left side 8 dots
10000
to 1000F
16
10010
to 1001F
16
10020
to 1002F
16
10030
to 1003F
16
:
107E0
to 107EF
16
107F0
to 107EF
16
11000
to 1100F
16
11010
to 1101F
16
:
117D0
to 117DF
16
117E0
to 117EF
16
117F0
to 117EF
16
7220 Group User's Manual
2.11 CRT display function
to 10XXF
16
"), then the character code is "XX
16
) where that character data is stored.
16
to 11FFF
.
16
16
16
16
16
16
16
16
16
16
16
16
16
(XX denotes "00
" to "7F
16
16
."
16
Right 4 side 8 dots
10800
to 1080F
16
16
10810
to 1081F
16
16
10820
to 1082F
16
16
10830
to 1083F
16
16
:
10FE0
to 10FEF
16
16
10FF0
to 10FFF
16
16
11800
to 1180F
16
16
11810
to 1181F
16
16
:
11FD0
to 11FDF
16
16
11FE0
to 11FEF
16
16
11FF0
to 11FFF
16
16
")
16
2-79
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