2004 Mar 01
49
Philips Semiconductors
Product specification
Digital video encoder
SAA7102; SAA7103
Table 65 Subaddress 6DH
Table 66 Subaddress 6EH
Table 67 Logic levels and function of PHRES
Table 68 Logic levels and function of LDEL
Table 69 Logic levels and function of FLC
DATA BYTE
DESCRIPTION
VTRIG
sets the vertical trigger phase related to chip-internal vertical input
increasing VTRIG decreases delays of all internally generated timing signals, measured in half lines;
variation range of VTRIG = 0 to 31 (1FH); the default value is 0
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
BLCKON
0
encoder in normal operation mode; default after reset
1
output signal is forced to blanking level
PHRES
−
selects the phase reset mode of the colour subcarrier generator; see Table 67
LDEL
−
selects the delay on luminance path with reference to chrominance path; see Table 68
FLC
−
field length control; see Table 69
DATA BYTE
DESCRIPTION
PHRES1
PHRES0
0
0
no subcarrier reset
0
1
subcarrier reset every two lines
1
0
subcarrier reset every eight fields
1
1
subcarrier reset every four fields
DATA BYTE
DESCRIPTION
LDEL1
LDEL0
0
0
no luminance delay; default after reset
0
1
1 LLC luminance delay
1
0
2 LLC luminance delay
1
1
3 LLC luminance delay
DATA BYTE
DESCRIPTION
FLC1
FLC0
0
0
interlaced 312.5 lines/field at 50 Hz, 262.5 lines/field at 60 Hz; default after reset
0
1
non-interlaced 312 lines/field at 50 Hz, 262 lines/field at 60 Hz
1
0
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
1
1
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz