
1996 Jul 03
16
Philips Semiconductors
Preliminary specification
Digital Video Encoders (DENC2-M6)
SAA7184; SAA7185B
Table 14
Subaddress 5F (CCRS and BLNVB; note 1)
Note
1.
BLNVB = vertical blanking level during vertical blanking interval and its value is typically identical to BLNNL.
Table 15
Subaddress 61
DATA BYTE
FUNCTION
CCRS1
CCRS0
0
0
1
1
0
1
0
1
no cross colour reduction (for overall transfer characteristic of luminance see Fig.5)
cross colour reduction #1 active (for overall transfer characteristic see Fig.5)
cross colour reduction #2 active (for overall transfer characteristic see Fig.5)
cross colour reduction #3 active (for overall transfer characteristic see Fig.5)
DATA
BYTE
LOGIC
LEVEL
DESCRIPTION
FISE
0
1
0
1
0
864 total pixel clocks per line. Default after reset.
858 total pixel clocks per line
NTSC encoding (non-alternating V component)
PAL encoding (alternating V component). Default after reset.
enlarged bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 3 and 4)
standard bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 3 and 4). Default after reset.
no real time control of generated subcarrier frequency. Default after reset.
real time control of generated subcarrier frequency through SAA7151B or SAA7111
(see Fig.9)
luminance gain for white
black 100 IRE. Default after reset.
luminance gain for white
black 92.5 IRE including 7.5 IRE set-up of black
PAL switch phase is nominal. Default after reset.
PAL switch phase is inverted compared to nominal
DACs in normal operational mode. Default after reset.
DACs forced to lowest output voltage
PAL
SCBW
1
RTCE
0
1
YGS
0
1
0
1
0
1
INPI
DOWN