MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
The OSD circuit has an extended display mode. This mode allows
multiple lines (16 lines or more) to be displayed on the screen by
interrupting the display each time one line is displayed and rewriting
data in the block for which display is terminated by software.
Figure 62 shows the configuration of OSD character. Figure 63 shows
the block diagram of the OSD circuit. Figure 64 shows the structure
of the OSD control register. Figure 65 shows the structure of the
block control register i.
CC mode
OSD mode
16 dots
16 dots
Blank area
✽
Underline area
Blank area
✽
✽
✽ : Displayed only in CCD mode.
EXOSD mode
16 dots
16 dots
16 dots
logical
sum
(OR)
Character font
Extra font
Fig. 62. Configuration of OSD Character Display Area
65
RENESAS [ RENESAS TECHNOLOGY CORP ]
