saa7120 NXP Semiconductors, saa7120 Datasheet - Page 20

• Manufacturer Part Number: saa7120
• Description: Digital Video Encoder Condenc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 30 Logic levels and function of FLC
Table 31 Subaddress 6F
Table 32 Logic levels and function of CCEN
Table 33 Subaddress 70 to 72
1997 Jan 06
CCEN
TTXEN
SCCLN
RCV2S
RCV2E
DATA BYTE
DATA BYTE
Digital Video Encoder (ConDENC)
CCEN1
FLC1
0
0
1
1
0
0
1
1
DATA BYTE
DATA BYTE
start of output signal on pin RCV2
end of output signal on pin RCV2
values above 1715 (FISE = 1) or [1727 (FISE = 0)] are not allowed
first active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
RCV2S = 11AH [0FDH]
values above 1715 (FISE = 1) or [1727 (FISE = 0)] are not allowed
last active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
RCV2E = 694H [687H]
CCEN0
LEVEL
LOGIC
FLC0
0
1
0
1
0
1
0
1
0
1
interlaced 312.5 lines/field at 50 Hz, 262.5 lines/field at 60 Hz; default after reset
non-interlaced 312 lines/field at 50 Hz, 262 lines/field at 60 Hz
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
enables individual Line 21 encoding; see Table 32
disables teletext insertion
enables teletext insertion
selects the actual line, where closed caption or extended data are encoded
Line 21 encoding off
enables encoding in field 1 (odd)
enables encoding in field 2 (even)
enables encoding in both fields
line = (SCCLN + 4) for M-systems
line = (SCCLN + 1) for other systems
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DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
SAA7120; SAA7121
Preliminary specification