參數(shù)資料
型號： M37274MA-052SP
廠商： Mitsubishi Electric Corporation
英文描述： PHOTO SM DETECTOR
中文描述： 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù)： 90/147頁
文件大?。?/td> 2042K
代理商： M37274MA-052SP
90
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274EFSP
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
MITSUBISHI MICROCOMPUTERS
Border
The border is output in the OSD mode and the EXOSD mode. The all
bordered (bordering around of character font) and the shadow bor-
dered (bordering right and bottom sides of character font) are se-
lected (refer to Figure 88) by bit 2 of the OSD control register (refer to
Figure 64). The border ON/OFF is controlled by bit 2 of the block
control register (refer to Figure 65).
The OUT1 signal is used for border output. The border color for each
screen is specified by the border color register.
The horizontal size (x) of border is 1T
C
(OSD clock cycle divided in
the pre-divide circuit) regardless of the character font dot size. How-
ever, only when the pre-divide ratio = 2 and character size = 1.5T
C
,
the horizontal size is 1.5T
C
. The vertical size (y) different depending
on the screen scan mode and the vertical dot size of character font.
Notes 1 :
There is no border for the extra font.
2 :
The border dot area is the shaded area as shown in Figure
90. In the EXOSD mode, top and bottom of character font
display area is not bordered.
3 :
When the border dot overlaps on the next character
font, the character font has priority (refer to Figure 91 A).
When the border dot overlaps on the next character back
ground, the border has priority (refer to Figure 91 B).
4 :
The border is not displayed at right side of the most right
dot in the display area of the 40th character (the character
located at the most right of the block).
However, note that MASK version cannot display the bor-
der for the right edge dots of the 36th’s character area.
Fig. 88. Example of Border Display
Fig. 89. Horizontal and Vertical Size of Border
All bordered
Shadow bordered
y
x
1/2H
1H
1H
Vertical dot size of
character font
Border
dot size
Scan mode
Horizontal size (x)
Vertical size (y)
1T
C
(OSD clock cycle divided in pre-divide circuit)
1.5T
C
when selecting 1.5T
C
for character size.
Normal scan mode
Bi-scan mode
1/2H 1H, 2H, 3H 1/2H, 1H, 2H, 3H
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