2004 Mar 01
45
Philips Semiconductors
Product specification
Digital video encoder
SAA7102; SAA7103
Table 50 Subaddress 3AH
Table 51 Subaddress 54H
Table 52 Subaddresses 55H to 59H
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
CBENB
0
data from input ports is encoded
1
colour bar with fixed colours is encoded
SYMP
0
horizontal and vertical trigger is taken from FSVGC or both VSVGC and HSVGC; default
after reset
1
horizontal and vertical trigger is decoded out of
“ITU-R BT.656” compatible data at PD port
DEMOFF
0
Y-C
B
-C
R
to RGB dematrix is active; default after reset
1
Y-C
B
-C
R
to RGB dematrix is bypassed
CSYNC
0
pin 26 provides a horizontal sync for non-interlaced VGA components output (at PIXCLK)
1
pin 26 provides a composite sync for interlaced components output (at XTAL clock)
Y2C
0
input luminance data is twos complement from PD input port
1
input luminance data is straight binary from PD input port; default after reset
UV2C
0
input colour difference data is twos complement from PD input port
1
input colour difference data is straight binary from PD input port; default after reset
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
VPSEN
0
video programming system data insertion is disabled; default after reset
1
video programming system data insertion in line 16 is enabled
EDGE2
0
internal PPD2 data is sampled on the rising clock edge
1
internal PPD2 data is sampled on the falling clock edge; see Tables 25 to 30; default after
reset
EDGE1
0
internal PPD1 data is sampled on the rising clock edge; see Tables 25 to 30; default after
reset
1
internal PPD1 data is sampled on the falling clock edge
DATA BYTE
DESCRIPTION
REMARKS
VPS5
fifth byte of video programming system data
in line 16; LSB first; all other bytes are not
relevant for VPS
VPS11
eleventh byte of video programming system data
VPS12
twelfth byte of video programming system data
VPS13
thirteenth byte of video programming system data
VPS14
fourteenth byte of video programming system data