TDA935x Philips, TDA935x Datasheet - Page 28

• Manufacturer Part Number: TDA935x
• Description: TV Signal Processor-Teletext Decoder with Embedded u-Controller
• Manufacturer: Philips

Philips Semiconductors
Table 3 SFR Bit description
2001 Jan 18
WDT
WDTKEY
WSS1
WSS2
WSS<7:4>
ERROR
WSS<7:4>
WSS3
XRAMP
XRAMP<7:0>
TV signal processor-Teletext decoder with
embedded -Controller
Painter1_Plus
WSS<13:11>
WSS<13:11>
WKEY<7:0>
WSS<10:8>
WSS<10:8>
standalone)
WDv<7:0>
Names
WSS<3:0>
WSS<3:0>
reversed in
(Polarity
GPF<2>
GPF<1>
GPF<0>
ERROR
ERROR
ERROR
0 - Disable Closed Caption acquisition
1 - Enable Closed Caption acquisition
0 - Disable Text acquisition
1 - Enable Text acquisition
0 - Standalone (Painter1_Plus) mode
1 - UOC mode
Watch Dog Timer period
Watch Dog Timer Key.
Note: Must be set to 55H to disable Watch dog timer when active.
0 - No error in WSS<3:0>
1 - Error in WSS<3:0>
Signalling bits to define aspect ratio (group 1)
0 - No errors in WSS<7:4>
1 - Error in WSS<7:4>
Signalling bits to define enhanced services (group 2)
0 - No error in WSS<13:11>
1 - Error in WSS<13:11>
Signalling bits to define reserved elements (group 4)
0 - No error in WSS<10:8>
1 - Error in WS<10:8>
Signalling bits to define subtitles (group 3)
Internal RAM access upper byte address.
ADD
BAH
BBH
BCH
FFH
FEH
FAH
WSS<13:11
WKEY<7>
XRAMP<7>
WDV<7>
< ERROR
BIT7
0
0
WKEY<6>
XRAMP<6>
WSS<13>
WDV<6>
BIT6
0
0
WKEY<5>
XRAMP<5>
WSS<12>
WDV<5>
BIT5
0
0
WSS<3:0>
ERROR
WSS<7:4>
ERROR
WKEY<4>
XRAMP<4>
WSS<11>
WDV<4>
BIT4
28
WSS<3>
WSS<7>
WSS<10:8>
WKEY<3>
XRAMP<3>
WDV<3>
ERROR
BIT3
TDA935X/6X/8X PS/N2 series
WSS<2>
WSS<6>
WKEY<2>
XRAMP<2>
WSS<10>
WDV<2>
BIT2
Tentative Device Specification
WSS<1>
WSS<5>
WKEY<1>
XRAMP<1>
WDV<1>
WSS<9>
BIT1
WSS<0>
WSS<4>
WKEY<0>
XRAMP<0>
WDV<0>
WSS<8>
BIT0
RESET
00H
00H
00H
00H
00H
00H