STV9936S datasheet(23/48 Pages) STMICROELECTRONICS

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STV9936P/S

Character Specifications

4.5.3

Character Blinking Effect

A character blinking effect can be programmed for each of the color boxes. This value is selected by

the BLINK bit. When this bit is set to 1, the blinking effect is enabled and the characters blink.

4.6

Multicolor Characters

16 multicolor characters can be separately programmed for each of the color-boxes. These special

characters are stored in the character font (see Figure 10) and are selected by bits MCOLOR[3:0].

MCOLOR[3] for Window 4

MCOLOR[2] for Window 3

MCOLOR[1] for Window 2

MCOLOR[0] for Window 1

If the MCOLOR bit is set to 0 for a specific color-box, the 256 monochrome ROM characters from

$00 to $FF are available (default value).

If the MCOLOR bit is set to 1, the 240 monochrome ROM characters from $00 to $EF and the 16

multicolor characters from $F0 to $FF are available.

No shadowing effects on multicolor characters.

No background effects on multicolor characters.

Blinking on multicolor characters: background color coded in the associated color-box.

4.7

Character Shadowing

A character shadowing effect can be separately programmed for each of the four color-boxes. This

value is selected by bits CSHA[3:0], respectively. The shadowing color is black.

When this bit is set to 1, the characters of the corresponding OSD window are displayed with a

shadowing effect, as shown in Figure 9. The default value is 0 (no shadowing effect).

Table 27: Multicolor Characters

FWR

FAC

Default

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

80h

08h

MCOLOR[3:0]

Figure 9: Character Shadowing

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