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UPD6461 Datasheet(PDF) 18 Page - NEC

Part # UPD6461
Description  CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
PDF  60 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD6461 Datasheet(HTML) 18 Page - NEC

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µPD6461, 6462
1.5 OUTPUTTING BACKGROUND
The figures below show the screen display when minimum background or overall background is specified for each output
channel in RGB+VC1+VC2 mode.
(1) Minimum background
A B C D
F
YOKOHAMA
1991. 9. 2
AM 10:00
0 1 2 3 4 5
E
A B C D
F
YOKOHAMA
1991. 9. 2
AM 10:00
0000
Background only for
VC2-specified areas
No background for
VC2-specified areas
No background for
VC2-specified areas
VC2 output (character signal)
VBLK2 output (background signal)
VC1 output (character signal)
VBLK1 output (background signal)
RGB channel
(2) Overall background
A B C D
F
YOKOHAMA
1991. 9. 2
AM 10:00
0 1 2 3 4 5
E
A B C D
F
YOKOHAMA
1991. 9. 2
AM 10:00
0000
Background only for
VC2-specified areas
No background for
VC2-specified areas
No background for
VC2-specified areas
VC2 output (character signal)
VBLK2 output (background signal)
VC1 output (character signal)
VBLK1 output (background signal)
RGB channel
Remarks 1. The above figures are only examples. Actually, the background can be controlled independently for each
output channel (only in RGB+VC1+VC2 mode), for example, by applying background (overall/minimum) for
the RGB channel but not for the other channels.
2. No background is applied to the VC2-specified areas for the RGB or VC1 channel. If a character adjacent
to a VC2-specified character is rimmed, the rim encroaches into the area for the VC2-specified character
by one dot (minimum size) only at the filled dots at the left or right edge of the area of the rimmed character,
in the same way as for display-off data. The background, however, does not encroach into the adjacent
area.



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