2004 Mar 01
44
Philips Semiconductors
Product specification
Digital video encoder
SAA7102; SAA7103
Table 47 Subaddresses 2AH to 2CH
Table 48 Subaddress 2DH
Table 49 Subaddresses 38H and 39H
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
CG
−
LSBs of the respective bytes are encoded immediately after run-in, the MSBs of the
respective bytes have to carry the CRCC bits, in accordance with the definition of copy
generation management system encoding format.
CGEN
0
copy generation data output is disabled; default after reset
1
copy generation data output is enabled
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
VBSEN
0
pin GREEN_VBS_CVBS provides a component GREEN signal (CVBSEN1 = 0) or CVBS
signal (CVBSEN1 = 1)
1
pin GREEN_VBS_CVBS provides a luminance (VBS) signal; default after reset
CVBSEN1
0
pin GREEN_VBS_CVBS provides a component GREEN (G) or luminance (VBS) signal;
default after reset
1
pin GREEN_VBS_CVBS provides a CVBS signal
CVBSEN0
0
pin BLUE_CB_CVBS provides a component BLUE (B) or colour difference BLUE (C
B
) signal
1
pin BLUE_CB_CVBS provides a CVBS signal; default after reset
CEN
0
pin RED_CR_C provides a component RED (R) or colour difference RED (C
R
) signal
1
pin RED_CR_C provides a chrominance signal (C) as modulated subcarrier for S-video;
default after reset
ENCOFF
0
encoder is active; default after reset
1
encoder bypass, DACs are provided with RGB signal after cursor insertion block
CLK2EN
0
pin TTXRQ_XCLKO2 provides a teletext request signal (TTXRQ)
1
pin TTXRQ_XCLKO2 provides the buffered crystal clock divided by two (13.5 MHz); default
after reset
DATA BYTE
DESCRIPTION
GY4 to GY0
Gain luminance of RGB (C
R
, Y and C
B
) output, ranging from (1
−
16
⁄
32
) to (1 +
15
⁄
32
).
Suggested nominal value = 0, depending on external application.
GCD4 to GCD0
Gain colour difference of RGB (C
R
, Y and C
B
) output, ranging from (1
−
16
⁄
32
) to (1 +
15
⁄
32
).
Suggested nominal value = 0, depending on external application.