
Philips Semiconductors
Preliminary specification
1999 Sep 28
24
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
BKGND IN
0 - Background colour not displayed inside teletext boxes
1 - Background colour displayed inside teletext boxes
COR OUT
0 - COR not active outside teletext and OSD boxes
1 - COR active outside teletext and OSD boxes
COR IN
0 - COR not active inside teletext and OSD boxes
1 - COR active inside teletext and OSD boxes
TEXT OUT
0 - TEXT not displayed outside teletext boxes
1 - TEXT displayed outside teletext boxes
TEXT IN
0 - TEXT not displayed inside teletext boxes
1 - TEXT displayed inside teletext boxes
PICTURE ON
OUT
0 - VIDEO not displayed outside teletext boxes
1 - VIDEO displayed outside teletext boxes
PICTURE ON IN
0 - VIDEO not displayed inside teletext boxes
1 - VIDEO displayed inside teletext boxes
TXT6
BKGND
OUT
BKGND IN
COR OUT
COR IN
TEXT OUT
TEXT IN
PICTURE
ON OUT
PICTURE
ON IN
03H
BKGND OUT
0 - Background colour not displayed outside teletext boxes
1 - Background colour displayed outside teletext boxes
BKGND IN
0 - Background colour not displayed inside teletext boxes
1 - Background colour displayed inside teletext boxes
COR OUT
0 - COR not active outside teletext and OSD boxes
1 - COR active outside teletext and OSD boxes
COR IN
0 - COR not active inside teletext and OSD boxes
1 - COR active inside teletext and OSD boxes
TEXT OUT
0 - TEXT not displayed outside teletext boxes
1 - TEXT displayed outside teletext boxes
TEXT IN
0 - TEXT not displayed inside teletext boxes
1 - TEXT displayed inside teletext boxes
PICTURE ON
OUT
0 - VIDEO not displayed outside teletext boxes
1 - VIDEO displayed outside teletext boxes
PICTURE ON IN
0 - VIDEO not displayed inside teletext boxes
1 - VIDEO displayed inside teletext boxes
TXT7
STATUS
ROW TOP
CURSOR
ON
REVEAL
BOTTOM/
TOP
DOUBLE
HEIGHT
BOX ON 24
BOX ON 1-
23
BOX ON 0
00H
STATUS ROW
TOP
0 - Display memory row 24 information below teletext page (on display row 24)
1 - Display memory row 24 information above teletext page (on display row 0)
CURSOR ON
0 - Disable display of cursor
1 - Display cursor at position given by TXT9 and TXT10
REVEAL
0 - Display as spaces characters in area with conceal attribute set
1 - Display characters in area with conceal attribute set
BOTTOM/TOP
0 - Display memory rows 0 to 11 when double height bit is set
1 - Display memory rows 12 to 23 when double height bit is set
DOUBLE
HEIGHT
0 - Display each characters with normal height
1 - Display each character as twice normal height.
BOX ON 24
0 - Disable display of teletext boxes in memory row 24
1 - Enable display of teletext boxes in memory row 24
BOX ON 1-23
0 - Disable display of teletext boxes in memory row 1 to 23
1 - Enable display of teletext boxes in memory row 1 to 23
Names
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
RESET
Table 4 SFR Bit description