
Philips Semiconductors
Preliminary specification
1999 Sep 28
26
TV signal processor-Teletext decoder with
embedded
μ
-Controller
TDA 935X/6X/8X series
525 DISPLAY
0 - 625 Line synchronisation for Display
1 - 525 Line synchronisation for Display
525 TEXT
0 - 525 Line WST not being received
1 - 525 line WST being received
625 TEXT
0 - 625 Line WST not being received
1 - 625 line WST being received
PKT 8/30
0 - No Packet 8/30/x(625) or Packet 4/30/x(525) data detected
1 - Packet 8/30/x(625) or Packet 4/30/x(525) data detected
FASTEXT
0 - No Packet x/27 data detected
1 - Packet x/27 data detected
TXT14
0
0
0
(Reserved)
0
PAGE<3>
PAGE<2>
PAGE<1>
PAGE<0>
00H
PAGE<3:0>
Current Display page
TXT15
0
0
0
(Reserved)
0
BLOCK<3>
BLOCK<2>
BLOCK<1>
BLOCK<0>
00H
BLOCK<3:0>
Current Micro block to be accessed by TXT9, TXT10 and TXT11
TXT17
0
FORCE
ACQ<1>
FORCE
ACQ<0>
FORCE
DISP<1>
FORCE
DISP<0>
SCREEN
COL2
SCREEN
COL1
SCREEN
COL0
00H
FORCE
ACQ<1:0>
00 - Automatic Selection
01 - Force 525 timing, Force 525 Teletext Standard
10 - Force 625 timing, Force 625 Teletext Standard
11 - Force 625 timing, Force 525 Teletext Standard
FORCE
DISP<1:0>
00 - Automatic Selection
01 - Force Display to 525 mode (9 lines per row)
10 - Force Display to 625 mode (10 lines per row)
11 - Not Valid (default to 625)
SCREEN
COL<2:0>
Defines colour to be displayed instead of TV picture and black background. The bits <2:0> are equivalent to the RGB components
000 - Transparent
001 - CLUT entry 9
010 - CLUT entry 10
011- CLUT entry 11
100 - CLUT entry 12
101 - CLUT entry 13
110- CLUT entry 14
111 - CLUT entry 15
TXT18
NOT<3>
NOT<2>
NOT<1>
NOT<0>
0
0
BS<1>
BS<0>
00H
NOT<3:0>
National Option table selection, maximum of 32 when used with East/West bit
BS<1:0>
Basic Character set selection
TXT19
TEN
TC<2>
TC<1>
TC<0>
0
0
TS<1>
TS<0>
00H
TEN
0 - Disable Twist function
1- Enable Twist character set
TC<2:0>
Language control bits (C12/C13/C14) that has Twisted character set
TS<1:0>
Twist Character set selection
TXT20
DRCS
ENABLE
OSD
PLANES
0
0
OSD LANG
ENABLE
OSD
LAN<2>
OSD
LAN<1>
OSD
LAN<0>
00H
DRCS ENABLE
0 - Normal OSD characters used
1 - Re-map column 8 and 9 to DRCS.
OSD PLANES
0 - Character code columns 8 and 9 defined as single plane characters (two colours per character).
1- Character code columns 8 and 9 defined as two plane characters (four colours per character).
Names
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
RESET
Table 4 SFR Bit description