M3727GM6 Datasheet, PDF (78/129 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M3727GM6/M8–XXXSP/FP M37272E8SP/FP
8.11.9 Attribute
The attributes (border, flash, underline, italic) are controlled to the
character font. The attributes to be controlled are different depend-
ing on each mode.
CC mode ..................... Flash, underline, italic (per character unit)
OSD mode .................. Border (per character unit)
(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 RA5 of OSD
RAM. The color of underline is the same color as that of the charac-
ter font.
(2) Flash
The character font and the underline are flashed only in the CC mode.
The flash is controlled by RA4 of OSD RAM. As for character font
part, the character output part is flashed, the character background
part is not flashed. The flash cycle bases on the VSYNC count.
• VSYNC cycle ✕ 48 ≈ 800 ms (at display ON)
• VSYNC cycle ✕ 16 ≈ 267 ms (at display OFF)
(3) Italic
The italic is made by slanting the font stored in OSD ROM to the right
only in the CC mode. The italic is controlled by RA6 of OSD RAM.
The display example of the italic and underline is shown in Figure
8.11.8. In this case, “R” is displayed.
Notes 1: When setting both the italic and the flash, the italic character flashes.
2: The boundary of character color is displayed in italic. However, the
boundary of character background color is not affected by the italic
(refer to Figure 8.11.19).
3: 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 8.11.19).
Rev.1.00 Apr 01, 2001 page 78 of 127
REJ03B0132-0100Z