FUNCTIONAL DESCRIPTION (continued)

12 - THE R/G/B OUTPUT PICTURE

The following tables show the picture design in R/G/B output mode, according to :

- Blink on/off (BK character attribute & C[6:4] control bits)

- Character background on/off (BE character attribute & C1 control bit)

- Character border on/off (FBE row attribute)

- C3 = 0 : CSCREEN, CBACKG and CBORD are page attributes, defined by the color register.

- C3 = 1 : CSCREEN is defined by the color register. CBACKG and CBORD are identical to CCHAR and

thus are character attributes. It is recommended to use CO output signal in this case.

An R/G/B external switch must be controlled by the STV5730AFB output to perform the character insertion.

C0 may be used as an additional character intensity signal.

12.1 - Mixed Mode

CHARACTER

FOREGROUND

CHARACTER

BORDER

if on

CHARACTER

BORDER

if off

CHARACTER

BACKGROUND

PAGE

BACKGROUND

Not Blinking and

Char Backg off

CCHAR

CBORD

video

Not Blinking and

Char Backg on

CCHAR

CBORD

CBACKG

video

Blinking and Char Backg off

video

Blinking and Char Backg on

CBACKG

video

12.2 - Full Page Mode

CHARACTER

FOREGROUND

CHARACTER

BORDER

if on

CHARACTER

BORDER

if off

CHARACTER

BACKGROUND

PAGE

BACKGROUND

Not Blinking and

Char Backg off

CCHAR

CBORD

CSCREEN

Not Blinking and

Char Backg on

CCHAR

CBORD

CBACKG

CSCREEN

Blinking and Char Backg off

CSCREEN

Blinking and Char Backg on

CBACKG

CSCREEN

CCHAR is a character attribute.

C3 = 0 : CSCREEN, CBACKG and CBORD are page attributes, defined by the color register.

C3 = 1 : CSCREEN is defined by the color register. CBACKG and CBORD are identical to CCHAR and

thus are character attributes.

STV5730A

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