參數(shù)資料
型號： M37271MF-XXXSP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
中文描述： 單芯片8位CMOS微機(jī)隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù)： 66/97頁
文件大?。?/td> 1436K
代理商： M37271MF-XXXSP
MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
66
4
Extra font
There are 32 kinds of the extra fonts configured with 16
26 dots in
OSD ROM. 16 kinds of these fonts can be displayed by ORed with
the character font by a character unit (refer to Figure 50). For the
others, only the extra font is displayed (refer to Figure 50). In only the
EXOSD mode, the extra font is controlled the following : bits 7 to 5 of
the color code 1, bit 3 of the color code 2, and decode value (EX4) of
the character code. When the character code = “00
16
” to “13F
16
,”
EX4 is “0, ” when the character code = “140
16
,” EX4 is “1.” Since
there is no font with the character code = “140
16
,” a blank is dis-
played.
The extra font color for each screen is specified by the extra color
register. When the character font overlaps with the extra font, the
color of the area becomes the ORed color of both fonts.
Note :
When using the extra font, set bits 7 and 6 of the OSD control
register to “0” (refer to Figure 52).
Fig. 70. Structure of extra font color register
(10) Attribute
The attributes (flash, underline, italic) are controlled to the character
font. The attributes for each character are specified by the color codes
1 and 2 (refer to Figure 68). The attributes to be controlled are differ-
ent depending on each mode.
CC mode..................... Flash, underline, italic
OSD mode .................. Border (all bordered, shadow bordered can
be selected)
EXOSD mode ............. Border (all bordered, shadow bordered can
be selected) , extra font (32 kinds)
1
Under line
The underline is output at the 23th and 24th dots in vertical direction
only in the CC mode. The underline is controlled by bit 6 of the color
code 1. The color of underline is the same color as that of the char-
acter font.
2
Flash
The parts of the character font, the underline, and the character back-
ground are flashed only in the CC mode. The color signals (R, G, B,
OUT1) of the character font and the underline are controlled by bit 5
of the color code 1. All of the color signals for the character font flash.
However, the color signal for the character background can be con-
trolled by bit 3 of the OSD control register (refer to Figure 52). The
flash cycle bases on the V
SYNC
count.
· V
SYNC
cycle
48
;
768 ms (at flash ON)
· V
SYNC
cycle
16
;
256 ms (at flash OFF)
3
Italic
The italic is made by slanting the font stored in OSD ROM only in the
CC mode. The italic is controlled by bit 7 of the color code 1.
The display example of the italic and underline is shown in Figure 70.
In this case, 16 26 dots are used and “R” is displayed.
Notes 1:
When setting both the italic and the flash, the italic charac-
ter flashes.
2:
When the pre-divide ratio = 1, the italic character with slant
of 1 dot
5 steps is displayed (refer to Figure 71 (c)). When
the pre-divide ratio = 2, the italic character with slant of 1/2
dot
10 steps is displayed (refer to Figure 71 (d)).
3:
The boundary of character color is displayed in italic. How-
ever, the boundary of character background color is not af-
fected by the italic (refer to Figure 72).
4:
The adjacent character (one side or both side) to an italic
character is displayed in italic even when the character is
not specified to display in italic (refer to Figure 72).
5:
When displaying the italic character in the block with the
pre-divide ratio = 1, set the OSD clock frequency to 11 MHz
to 14 MHz.
7
Extra font color
register
(EC : address 0218
16
)
Extra font color
R control bit
0 : No output
1 : Output
Extra font color
G control bit
0 : No output
1 : Output
Extra font color
B control bit
0 : No output
1 : Output
Extra font color
I1 control bit
0 : No output
1 : Output
Extra font color
I2 control bit
0 : No output
1 : Output
0
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