SAA7129 Philips Semiconductors, SAA7129 Datasheet - Page 20
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SAA7129
Manufacturer Part Number
SAA7129
Description
Digital video encoder
Manufacturer
Philips Semiconductors
Datasheet
1.SAA7129.pdf
(56 pages)
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Philips Semiconductors
Table 16 Subaddress 3AH
Table 17 Subaddresses 42H to 44H and 48H to 4AH
Table 18 Subaddresses 45H to 47H and 4BH to 4DH
2000 Mar 08
ADDRESS
ADDRESS
Digital video encoder
4AH
4BH
4CH
4DH
42H
48H
43H
49H
44H
45H
46H
47H
BIT
7
6
5
4
3
2
1
0
CBENB
SYMP
DEMOFF
CSYNC
MP2C
VP2C
SYMBOL
KEY1UU
KEY2UU
KEY1UV
KEY1UY
KEY2UV
KEY2UY
KEY1LU
KEY2LU
KEY1LV
KEY2LV
KEY1LY
KEY2LY
BYTE
BYTE
0 = data from input ports is encoded; default state after reset
1 = colour bar with fixed colours is encoded
These 2 bits are reserved; each must be set to a logic 0.
0 = horizontal and vertical trigger is taken from RCV2 and RCV1 respectively; default
state after reset
1 = horizontal and vertical trigger is decoded out of “ITU-R BT.656” compatible data at
MPEG port
0 = YC
1 = YC
0 = CVBS output signal is switched to CVBS DAC; default state after reset
1 = advanced composite sync is switched to CVBS DAC
0 = input data is 2’s complement from MPEG port fader input
1 = input data is straight binary from MPEG port fader input; default state after reset
0 = input data is 2’s complement from Video port fader input
1 = input data is straight binary from Video port fader input; default state after reset
Key colour 1 lower and upper limits for U, V and Y. If MPEG input signal is within the
limits of key colour 1 the incoming signals at the Video port and MPEG port are added
together according to the equation:
FADE1
Default value of all bytes after reset = 80H.
Key colour 2 lower and upper limits for U,V and Y. If MPEG input signal is within the
limits of key colour 2 the incoming signals at the Video port and MPEG port are added
together according to the equation:
FADE2
Default value of all bytes after reset = 80H.
B
B
C
C
video signal + (1
video signal + (1
R
R
-to-RGB dematrix is active; default state after reset
-to-RGB dematrix is bypassed
20
FADE1)
FADE2)
DESCRIPTION
DESCRIPTION
DESCRIPTION
MPEG signal
LUT values
SAA7128H; SAA7129H
Product specification