Table of Contents
Advertisement
M37220M3-XXXSP/FP
4.5 Functional description
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
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 4.5.6 shows the character code table.
Table 4.5.6 Character code table (be omitted partly)
Character code
00
16
01
16
02
16
03
16
:
7E
16
7F
16
CRT display RAM (addresses 0600
CRT display RAM is assigned to addresses 0600
CRT display RAM.
Table 4.5.7 Contents of CRT display RAM
Block number
Display position (from left side)
Block 1
Not used
Block 2
4-22
to 10YYF
(YY denotes "XX+800
16
" in addresses 11000
16
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
1st character
2nd character
3rd character
:
18th character
19th character
20th character
1st character
2nd character
3rd character
:
18th character
19th character
20th character
7220 Group User's Manual
"), then the character code is "XX
16
to 107FF
) where that character data is stored.
16
16
to 11FFF
16
Character data stored address
16
16
16
16
16
16
to 06B3
)
16
16
to 06B3
16
Character code specifying
0600
16
0601
16
0602
16
:
0611
16
0612
16
0613
16
0614
16
to
061F
16
0620
16
0621
16
0622
16
:
0631
16
0632
16
0633
16
to 10XXF
(XX denotes 00
16
16
.
16
Right 4 side 8 dots
10800
to 1080F
16
10810
to 1081F
16
10820
to 1082F
16
10830
to 1083F
16
:
10FE0
to 10FEF
16
10FF0
to 10FFF
16
. Table 4.5.7 shows the contents of
16
Color specifying
0680
0681
0682
0691
0692
0693
0694
069F
06A0
06A1
06A2
061
062
063
to 7F
)
16
16
."
16
16
16
16
16
16
16
16
16
16
:
16
16
16
16
:
16
16
16
16
:
16
16
16
Advertisement
Table of Contents
