M37270MF Datasheet, PDF (56/94 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
 RAM for OSD (addresses 080016 to 0FFF16)
The RAM for OSD is allocated at addresses 080016 to 0FFF16, and
is divided into a display character code specification part, color code
1 specification part, and color code 2 specification part for each block.
Table 14 shows the contents of the RAM for OSD.
For example, to display 1 character position (the left edge) in block
1, write the character code in address 080016, write the color code 1
at 084016, and write the color code 2 at 082816.
The structure of the RAM for OSD is shown in Figure 65.
Note: For the OSD mode block with dot size of 1.5TC ! 1/2H and
1.5TC ! 1H, the 3nth (n = 1 to 13) character is skipped as
compared with ordinary block^V. Accordingly, maximum 26 char-
acters are only displayed in 1 block. The RAM data for the
3nth character does not effect the display. Any character data
can be stored here.
V Blocks with dot size of 1TC ! 1/2H and 1TC ! 1H, or blocks
on the layer 1
Table 14. Contents of OSD RAM
Block
Block 1
Block 2
Block 3
Block 4
Block 5
Display position (from left)
1st character
2nd character
:
24th character
25th character
:
39th character
40th character
1st character
2nd character
:
24th character
25th character
:
39th character
40th character
1st character
2nd character
:
24th character
25th character
:
39th character
40th character
1st character
2nd character
:
24th character
25th character
:
39th character
40th character
1st character
2nd character
:
24th character
25th character
:
39th character
40th character
Character code specification
080016
080116
:
081716
081816
:
082616
082716
088016
088116
:
089716
0E9816
:
08A616
08A716
090016
090116
:
091716
091816
:
092616
092716
098016
098116
:
099716
099816
:
09A616
09A716
0A0016
0A0116
:
0A1716
0A1816
:
0A2616
0A2716
Color code 1 specification
084016
084116
:
085716
085816
:
086616
086716
08C016
08C116
:
08D716
08D816
:
08E616
08E716
094016
094116
:
095716
095816
:
096616
096716
09C016
09C116
:
09D716
08D816
:
09E616
09E716
0A4016
0A4116
:
0A5716
0A5816
:
0A6616
0A6716
Color code 2 specification
082816
082916
:
083F16
086816
:
087616
087716
08A816
08A916
:
08BF16
08E816
:
08F616
08F716
092816
092916
:
093F16
096816
:
097616
097716
09A816
09A916
:
09BF16
09E816
:
09F616
09F716
0A2816
0A2916
:
0A3F16
0A6816
:
0A7616
0A7716
56