M37160MF datasheet(81/131 Pages) RENESAS

81 / 131 page

Rev.1.01

2003.11.13

page 81 of 130

M37160M8/MA/MF-XXXSP/FP,M37160EFSP/FP

8.10.15 Raster Coloring Function

An entire screen (raster) can be colored by setting bits 4 to 0 of the

raster color register. Since each of the R, G, B, OUT pins can be

switched to raster coloring output, 8 raster colors can be obtained.

When the character color character background color overlaps with

the raster color, the color (R, G, B, OUT), specified for the character

color character background color, takes priority over the raster color.

This ensures that character color/character background color is not

mixed with the raster color.

The raster color register is shown in Figure 8.10.31, an example of

raster coloring is shown in Figure 8.10.30.

Fig. 8.10.30 Raster Color Register

b7 b6 b5 b4 b3 b2 b1 b0

Raster color register (RC) [Address 00D916]

Name

Functions

After reset R W

Raster Color Register

Raster color R

control bit (RC0)

0 : No output

1 : Output

Raster color G

control bit (RC1)

0 : No output

1 : Output

0 : No output

1 : Output

Raster color B

control bit (RC2)

0 : No output

1 : Output

Raster color OUT

control bit (RC3)

Fix these bits to “0.”

0R W

00 0

Port function

selection bit (RC7)

0 : XCIN,

XCOUT

1 : P26, P27

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