MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
44
OSD mode
(On-screen display mode)
40 characters ✕ 16 lines
16 ✕ 20 dots
14 kinds
✕ 1, ✕ 2, ✕ 3
1TC
✕
1/2H, 1TC
✕
1H, 1.5TC
✕
1/2H,
1.5TC
✕
1H, 2TC
✕
2H, 3TC
✕
3H
Border
1 screen : 7 kinds, Max. 15 kinds
(a character unit)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
Possible (a character unit, 1 screen
: 7 kinds, max. 7 kinds)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
R, G, B, I1, OUT1, OUT2
Dual layer OSD function (layer 2)
Possible
OSD FUNCTIONS
Table 10 outlines the OSD functions of the M37270MF-XXXSP.
The M37270MF-XXXSP incorporates an OSD control circuit of 40
characters ✕ 16 lines. OSD is controlled by the OSD control regis-
ter. There are 3 display modes and they are selected by a block unit.
The display modes are selected by the block control register i (i = 1
to 6).
The features of each mode are described below.
EXOSD mode
(Extra on-screen display mode)
40 characters ✕ 16 lines
16 ✕ 26 dots
6 kinds
✕ 1, ✕ 2, ✕ 3
1T
C ✕ 1/2H, 1TC ✕ 1H
Border, extra font (32 kinds)
1 screen : 7 kinds, Max. 7 kinds
(a character unit)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
Possible (a character unit, 1 screen :
7 kinds, max. 7 kinds)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
R, G, B, I1, I2, OUT1, OUT2
Possible
CC mode
(Closed caption mode)
40 characters ✕ 16 lines
16 ✕ 26 dots
(Character : 20 ✕ 16 dots)
2 kinds
✕ 1, ✕ 2
1TC ✕ 1/2H
Smooth italic, under line, flash
1 screen : 7 kinds, Max. 7 kinds
(a character unit)
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
Possible (a character unit, 1 screen
: 7 kinds, max. 7 kinds)
R, G, B, OUT1, OUT2
Auto solid space function
Window function
Dual layer OSD function (layer 1)
Possible
Parameter
Number of display
characters
Dot structure
Kinds of characters
Kinds of character sizes
Attribute
Character font coloring
Raster coloring
Character background
coloring
Border coloring
Extra font coloring
OSD output
Function
Display expansion
(multiline display)
Pre-divide
ratio (Note)
Dot size
Table 10. Features of each display mode
Display mode
320 kinds (In EXOSD mode, they can be combined with 32 kinds of extra fonts)
Notes 1: The divide ratio of the frequency divider (the pre-divide circuit) is referred as “pre-divide ratio” hereafter.
2: The character size is specified with dot size and pre-divide ratio (refer to (3) Dote size).
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