M3727GM6 Datasheet, PDF (81/129 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
(4) Border
The border is output around of character font (all bordered) in the
OSD mode. The border ON/OFF is controlled by bit 0 and 1 of the
block control register i (refer to Figure 8.11.4).
The OUT1 signal is used for border output.
The horizontal size (x) of border is 1TC (OSD clock cycle divided in
pre-divide circuit) regardless of the character font dot size. The verti-
cal size (y) different depending on the screen scan mode and the
vertical dot size of character font.
Notes 1 : The border dot area is the shaded area as shown in Figure 8.11.20.
2 : When the border dot overlaps on the next character font, the charac-
ter font has priority (refer to Figure 8.11.22 A).
When the border dot overlaps on the next character back ground, the
border has priority (refer to Figure 8.11.22 B).
3 : The border in vertical out of character area is not displayed (refer to
Figure 8.11.22).
OSD mode
16 dots
All bordered
Fig. 8.11.20 Example of Border Display
Character
font area
1 dot width of border
1 dot width of border
y
x
Border dot size
Vertical dot size of
character font
Horizontal size (x)
Vertical size (y)
1/2H
1H, 2H, 3H
1Tc (OSD clock cycle divided
in pre-divide circuit)
1/2H
1H
Fig. 8.11.21 Horizontal and Vertical Size of Border
Rev.1.00 Apr 01, 2001 page 81 of 127
REJ03B0132-0100Z