SAA7183A Philips Semiconductors, SAA7183A Datasheet - Page 27

• Manufacturer Part Number: SAA7183A
• Description: Digital Video Encoder EURO-DENC2
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 33 Subaddress 73 to 75
Table 34 Subaddress 76, 77 and 7C
Table 35 Subaddress 78, 79 and 7C
Table 36 Subaddress 7A to 7C
Table 37 Subaddress 7A to 7C
S
In subaddresses 5B, 5C, 5D, 5E and 62 all IRE values are rounded up.
1996 Oct 02
TTXHS
TTXHE
TTXOVS
TTXOVE
TTXEVS
TTXEVE
FAL
LAL
LINE
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
DATA BYTE
UBADDRESSES
Digital Video Encoder (EURO-DENC2)
start of signal on pin TTXRQ (standard for 50 Hz field rate = tbf)
end of signal on pin TTXRQ (standard for 50 Hz field rate = TTXHS + 1402)
first line of occurrence of signal on pin TTXRQ in odd field = TTXOVS + 1 (50 Hz field rate)
last line of occurrence of signal on pin TTXRQ in odd field = TTXOVE (50 Hz field rate)
first line of occurrence of signal on pin TTXRQ in even field = TTXEVS + 1 (50 Hz field rate)
last line of occurrence of signal on pin TTXRQ in even field = TTXEVE (50 Hz field rate)
first active line = FAL + 4 for M-systems, = FAL + 1 for other systems, measured in lines
last active line = LAL + 3 for M-systems, = 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)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
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
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DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
SAA7182A; SAA7183A
Preliminary specification