SAA7109 PHILIPS [NXP Semiconductors], SAA7109 Datasheet - Page 134

• Manufacturer Part Number: SAA7109
• Description: PC-CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 110 Subaddresses 76H, 77H and 7CH
Table 111 Subaddresses 78H, 79H and 7CH
Table 112 Subaddresses 7AH to 7CH
Table 113 Subaddress 7CH
Table 114 Subaddresses 7EH and 7FH
2004 Mar 16
TTXOVS
TTXOVE
TTXEVS
TTXEVE
FAL
LAL
TTX60
LINE
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
PC-CODEC
first line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in odd field
last line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in odd field
first line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in even field
last line of occurrence of signal TTXRQ on pin TTXRQ_XCLKO2
(CLK2EN = 0) in even field
first active line = FAL + 4 for M-systems and FAL + 1 for other systems, measured in lines
last active line = LAL + 3 for M-systems and LAL for other system, measured in lines
individual lines in both fields (PAL counting) can be disabled for insertion of teletext by the respective
bits, disabled line = LINExx (50 Hz field rate)
LOGIC
LEVEL
line = (TTXOVS + 4) for M-systems
line = (TTXOVS + 1) for other systems
line = (TTXOVE + 3) for M-systems
line = TTXOVE for other systems
line = (TTXEVS + 4) for M-systems
line = (TTXEVS + 1) for other systems
line = (TTXEVE + 3) for M-systems
line = TTXEVE for other systems
FAL = 0 coincides with the first field synchronization pulse
LAL = 0 coincides with the first field synchronization pulse
this bit mask is effective only if the lines are enabled by TTXOVS/TTXOVE and TTXEVS/TTXEVE
0
1
enables NABTS (FISE = 1) or European TTX (FISE = 0); default after reset
enables world standard teletext 60 Hz (FISE = 1)
DESCRIPTION
DESCRIPTION
134
DESCRIPTION
DESCRIPTION
DESCRIPTION
SAA7108E; SAA7109E
TTXOVS = 05H; is default after
reset if strapped to PAL
TTXOVS = 06H; is default after
reset if strapped to NTSC
TTXOVE = 16H; is default after
reset if strapped to PAL
TTXOVE = 10H; is default after
reset if strapped to NTSC
TTXEVS = 04H; is default after
reset if strapped to PAL
TTXEVS = 05H; is default after
reset if strapped to NTSC
TTXEVE = 16H; is default after
reset if strapped to PAL
TTXEVE = 10H; is default after
reset if strapped to NTSC
REMARKS
REMARKS
Product specification