M37270MF Datasheet, PDF (44/94 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
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.
Table 10. Features of each display mode
Parameter
Number of display
characters
Dot structure
Kinds of characters
Kinds of character sizes
Pre-divide
ratio (Note)
Dot size
Attribute
Character font coloring
CC mode
(Closed caption mode)
40 characters ! 16 lines
Display mode
OSD mode
(On-screen display mode)
40 characters ! 16 lines
EXOSD mode
(Extra on-screen display mode)
40 characters ! 16 lines
16 ! 26 dots
16 ! 20 dots
16 ! 26 dots
(Character : 20 ! 16 dots)
320 kinds (In EXOSD mode, they can be combined with 32 kinds of extra fonts)
2 kinds
14 kinds
6 kinds
! 1, ! 2
! 1, ! 2, ! 3
! 1, ! 2, ! 3
1TC ! 1/2H
Smooth italic, under line, flash
1 screen : 7 kinds, Max. 7 kinds
(a character unit)
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)
1TC ! 1/2H, 1TC ! 1H
Border, extra font (32 kinds)
1 screen : 7 kinds, Max. 7 kinds
(a character unit)
Raster coloring
Possible (a screen unit, 1 screen : Possible (a screen unit, 1 screen : Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
7 kinds, max. 7 kinds)
7 kinds, max. 7 kinds)
Character background
coloring
Possible (a character unit, 1 screen Possible (a character unit, 1 screen Possible (a character unit, 1 screen :
: 7 kinds, max. 7 kinds)
: 7 kinds, max. 7 kinds)
7 kinds, max. 7 kinds)
Border coloring
Possible (a screen unit, 1 screen : Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
7 kinds, max. 7 kinds)
Extra font coloring
Possible (a screen unit, 1 screen :
7 kinds, max. 7 kinds)
OSD output
R, G, B, OUT1, OUT2
R, G, B, I1, OUT1, OUT2
R, G, B, I1, I2, OUT1, OUT2
Function
Auto solid space function
Dual layer OSD function (layer 2)
Window function
Dual layer OSD function (layer 1)
Display expansion
(multiline display)
Possible
Possible
Possible
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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