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On-Screen Display
Setting Up the OSD
Panasonic Semiconductor Development Company MN102H75K/F75K/85K/F85K LSI User Manual
186
Panasonic
■ Italicizing
In closed-caption mode, writing a 1 to bit 10 (ITALIC) of the COL setting in the
VRAM italicizes all characters following that COL. Figure 7-26 shows an
example of an italicized character.
■
Underlining
In closed-caption mode, writing a 1 to bit 11 (CUNDL) of the COL setting in the
VRAM underlines all characters following that COL. Figure 7-26 shows an
example of an underlined character.
■
Blinking
In both normal and closed-caption modes, writing a 1 to bit 8 (BLINK) of the
COL setting in the VRAM causes all characters following that COL to blink. To
use this function, you must enable blinking by writing a 1 to bit 5 (BLINK) of the
OSD3 register (x’007F0A’).
In closed-caption mode, you can specify whether or not the underlines blink on
underlined, blinking characters. Set bit 0 (UNDF) of the OSD3 register to 0 to
disable underline blinking, and set it to 1 to enable underline blinking.
The blink cycle lasts for 128 VSYNC pulses (about 2 seconds). The characters
display for 96 VSYNCs (about 1.5 seconds) and turn off for 32 VSYNCs (about
0.5 seconds).
Figure 7-26 Italicizing and Underlining Example
18 dots
26 dots
Italics
Caption mode
Underlining