M37281EKSP Datasheet, PDF (66/172 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M37281MAH–XXXSP,M37281MFH–XXXSP,M37281MKH–XXXSP, M37281EKSP
8.11 OSD FUNCTIONS
Table 8.11.1 outlines the OSD functions.
This OSD function can display the following: the block display (32
characters ✕ 16 lines), the SPRITE display. And besides, the func-
tion can display the both display at the same time. There are 3 dis-
play modes and they are selected by a block unit. The display modes
are selected by block control register i (i = 1 to 16).
The features of each mode are described below.
Table.8.11.1 Features of Each Display Style
Display style
Parameter
CC mode
(Closed caption mode)
Block display
OSD mode
(On-screem display mode)
Number of display
characters
Dot structure
16 ✕ 20 dots
(Character display area:
16 ✕ 26 dots)
Kinds of characters
510 kinds
32 characters ✕ 16 lines
16 ✕ 20 dots
CDOSD mode
(Color dot on-screen
display mode)
16 ✕ 26 dots
62 kinds
SPRITE display
1 character
16 ✕ 20 dots
1 kind
Font memory
Kinds of character
4 kinds
sizes
Pre-divide
ratio (Note 1)
✕ 1, ✕ 2
Dot size
1TC ✕ 1/2H,
1TC ✕ 1H
Attribute
Smooth italic,
under line, flash (Blinking)
Border
ROM
14 kinds
✕ 1, ✕ 2, ✕ 3
1TC ✕ 1/2H,
1TC ✕ 1H,
1.5TC ✕ 1/2H,
1.5TC ✕ 1H,
2TC ✕ 2H,
3TC ✕ 3H
RAM
8 kinds
✕ 1, ✕ 2
1TC ✕ 1/2H,
1TC ✕ 1H,
2TC ✕ 1H,
2TC ✕ 2H
Character font
coloring
1 screen: 8 kinds
(per character unit)
Max. 64 kinds
1 screen: 16 kinds
(per character unit)
Max. 64 kinds
1 screen: 8 kinds (per dot unit) 1 screen: 8 kinds
(only specified dots are colored (per dot unit)
per character unit) Max. 64 kinds
Max. 64 kinds
Character
background
coloring
Display layer
Possible
Possible
(a character unit, 1 screen: 4 (a character unit,1 screen: 16 kinds,
kinds, Max. 64 kinds)
Max. 64 kinds)
Layer 1
Layer 1 and layer 2
Layer 3 (with highest priority)
OSD output (Note 2)
Raster coloring
Other function
(Note 3)
Analog R, G, B output (each 4 adjustment levels : 64 colors), Digital OUT1, OUT2 output
Possible (a screen unit)
Auto solid space function
Triple layer OSD function, window function, blank funtion
Display position
Display expansion
(multiline display)
Horizontal: 256 levels, Vertical: 1024 levels
Possible
Horizontal: 2048 levels
Vertical: 1024 levels
Notes1: The character size is specified with dot size and pre-divide ratio (refer to “8.11.3 Dot Size”).
2: SPRITE display do not output OUT2.
3: SPRITE display is not referred as windowed function.
Rev.1.01 2003.07.16 page 66 of 170