M3727GM6 Datasheet, PDF (88/129 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
8.11.14 Raster Coloring Function
An entire screen (raster) can be colored by setting the bits 4 to 0 of
the raster color register. Since each of the R, G, B, OUT1, and OUT2
pins can be switched to raster coloring output, 8 raster colors can be
obtained.
When the character color/the character background color overlaps
with the raster color, the color (R, G, B, OUT1, OUT2), specified for
the character color/the character background color, takes priority of
the raster color. This ensures that character color/character back-
ground color is not mixed with the raster color.
The raster color register is shown in Figure 8.11.29, the example of
raster coloring is shown in Figure 8.11.30.
Raster Color Register
b7 b6 b5 b4 b3 b2 b1 b0
00
Raster color register (RC) [Address 00D9 16]
B
Name
0 Raster color R
control bit (RC0)
1 Raster color G
control bit (RC1)
2 ^{Raster color B}
control bit (RC2)
3 ^{Raster color OUT1}
control bit (RC3)
4 Raster color OUT2
control bit (RC4)
Functions
0 : No output
1 : Output
0 : No output
1 : Output
0 : No output
1 : Output
0 : No output
1 : Output
0 : No output
1 : Output
5, 6 _{Fix these bits to “0.”}
After reset _{R W}
0 RW
0 RW
0 RW
0 RW
0 RW
0 RW
7 Port function
0 : OSC1/XCIN,
0
selection bit (RC7)
OSC2/XCOUT
1 : P26, P27
Note: Either OSD clock source or 32 kHz oscillating clock is
selected by bits 5 and 6 of the OSD control register.
RW
Fig. 8.11.29 Raster Color Register
Rev.1.00 Apr 01, 2001 page 88 of 127
REJ03B0132-0100Z