UPD6462 NEC, UPD6462 Datasheet - Page 34

• Manufacturer Part Number: UPD6462
• Description: CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
• Manufacturer: NEC

34
• Rimming control bit
Rimming: Whenever there is a dot at the right or left edge of the display area for a character, rimming of the dot will
Example
• Background control bits
• Background and rimming in RGB+V
The background color is specified with the background/rim color control command.
the RGB or V
is added to the areas for the V
to those areas for V
V
channel are valid. Those for the V
the V
C2
This bit is used to specify whether all characters displayed on the screen are rimmed.
These bits are used to select no background, minimum background, or overall background as the background type.
No background:
Minimum background: Adds a background of an area that is wider than the character display area by a minimum
Overall background:
Characters for which the V
When RGB+3BLK (RGB compatible blanking) mode is selected, only the background control bits for the RGB
-Specified Characters for details of the display of V
C2
channel. The V
encroach into the adjacent character display area. For dots at the top or bottom edge, however, no rim is
added either above the top edge or below the bottom edge, that is, rimming does not encroach into the
character display area above or below. Other dots are rimmed as shown below.
C1
channel. When background (minimum/overall) is specified for the RGB or V
The width of a rim is always 1t (minimum dot) regardless of the character size.
C2
-specified characters. (Refer to 1.4 DISPLAY IN RGB+V
C1
Outputs only character data.
of one dot at each side.
Adds a background over the entire screen.
pin is used to output the logical OR of the R, G, and B outputs.).
C2
C2
channel is specified with the displayed character control command are not output to
-specified characters. By contrast for the V
C1
C1
and V
+V
C2
C2
Character dots
mode
channels are invalid (In RGB+3BLK mode, no pin outputs a signal for
Rim
C2
-specified character areas for the RGB or V
C2
channel, a background is added only
C1
+V
C2
MODE and 1.4.4 Display of
C1
channel, no background
PD6461, 6462
C1
channel.)