Rev.1.00
May 18, 2004
page 177 of 296
M306V7MG/MH/MJ/MJA-XXXFP, M306V7FG/FH/FJ/FJAFP
2.16 OSD Functions
Table 2.16.1 outlines the OSD functions of this microcomputer. This OSD function can display the follow-
ing: the block display (32 characters 16 lines or 42 characters 16 lines) and the SPRITE display, and
can display the both display at the same time. There are 3 display 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 display are
described below.
Note: When using OSD function, select “No-division mode” as BCLK operating mode and set the main
clock frequency to f(XIN) = 16 MHz or 10 MHz. At this time, set bit 7 (SSCK) of the peripheral mode
register according to the XIN frequency to be used.
Table 2.16.1 Features of each display style
CC mode
(Closed caption mode)
OSD mode
(On-screen display mode)
OSDS mode
Display style
Parameter
Number of display characters
32 characters 16 lines/42 characters 16 lines
16 20 dots
(Character display area:
16 26 dots)
4 kinds
1, 2
1TC 1/2H,
1TC 1H
Smooth italic,
under line, flash
1 screen: 8 kinds
(a character unit)
Max. 512 kinds
Possible
(a character unit, 1 screen: 4
kinds, Max. 512 kinds)
Layer 1
Analog R, G, B output (each 8 adjustment levels: 512 colors), Digital OUT1, OUT2 output
Dot structure
Kinds of
character
ROM
OSDL
enable mode
OSDL
disable mode
254 kinds
508 kinds
254 kinds
Kinds of character sizes
(See note 1) Pre-divide
ratio (Note)
Dot size
Attribute
Character font
coloring
Character
background
coloring
Display layer
OSD output (See note 2)
Possible (a screen unit, max 512 kinds)
Raster coloring
Auto solid space function
Other function
(See note 3)
Triple layer OSD function, window function, blank function
Possible
Display expansion
(multiline display)
14 kinds
1TC 1/2H,
1TC 1H,
1.5TC 1/2H,
1.5TC 1H,
2TC 2H,
3TC 3H
Border
Possible
(a character unit,1 screen: 16 kinds,
Max. 512 kinds)
1 screen: 16 kinds
(a character unit)
Max. 512 kinds
Notes 1: The character size is specified with dot size and pre-divide ratio (refer to “2.16.3 Dot Size”).
2: As for SPRITE display, OUT2 is not output.
3: As for SPRITE display, the window function does not operate.
4: The divide ratio of the frequency divider (the pre-divide circuit) is referred as “pre-divide ratio” hereafter.
Block display
OSDL mode
CDOSD mode
(Color dot on-screen
display mode)
SPRITE display
1, 2, 3
Layers 1, 2
24 32 dots
254 kinds
12 kinds
Layer 3 (with highest priority)
16 26 dots
126 kinds
14 kinds
1TC 1/2H,
1TC 1H,
1.5TC 1/2H,
1.5TC 1H,
2TC 2H,
3TC 3H
1 screen: 16 kinds (a dot unit)
(only specified dots are colored
by a character unit)
Max. 512 kinds
1 screen: 16 kinds
(a dot unit)
Max. 512 kinds
32 20 dots
2 kinds of RAM font
8 kinds
1TC 1/2H,
1TC 1H,
2TC 2H,
3TC 3H
1 character 2 lines
1, 2
OSDP mode
16 20 dots
12 20 dots
8 20 dots
4 20 dots
1TC 1/2H,
1TC 1H,
2TC 2H,
3TC 3H
Layer 1Layers 1, 2