TMP88CS38 datasheet(166/226 Pages) TOSHIBA

166 / 226 page

TMP88CS38/CM38A/CP38A

2007-09-12

88CS38-166

(4) Background function

Background color function is used to color the entire background for the

character area (Refer to Table 2.15.4). Except the character area whose character

code is 000H.

This function is specified for each display page by setting EBKGD (Bit7 in

ORRCL) in the OSD control register to “1”.

A background color is specified for each display page by setting IBDT, RBDT,

GBDT, and BBDT (Bit7 to 4 in ORBK) in the OSD control registers.

Background specification unit: Display page

Background enable register (1 bit) ..... EBKGD (Bit7 in ORRCL)

“0”

......... Disable background

“1”

......... Enable background

Background color specification unit: Display page

Background color specification registers (4 bits) ... IBDT, RBDT, GBDT,

BBDT (Bit7 to 4 in ORBK)

I signal function select: PISEL (Bit6 in ORETC)

“0”

......... 15 colors specification

I pin can be used to make a half level of R, G, B signal

(Dark color) through an extra circuit.

“1”

......... 8 colors specification

Contents of IBDT register is disregarded.

I pin can be used as half transparency/half tone

through an extra circuit.

Table 2.15.5 Background Color (15 colors)

IBDT

RBDT

GBDT

BBDT

Background Color

Black

Blue

Green

Cyan

Red

Magenta

Yellow

White

Black

Dark blue

Dark green

Dark cyan

Dark red

Dark magenta

Dark yellow

Gray

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