saa6752hs NXP Semiconductors, saa6752hs Datasheet - Page 48

• Manufacturer Part Number: saa6752hs
• Description: Mpeg-2 Video And Mpeg-audio/ac-3 Audio Encoder With Multiplexer
• Manufacturer: NXP Semiconductors

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Table 20 I
ADR
HEX
70
71
72
73
74
75
76
77
78
I
I
I
I, E, P,
S
I, E, P,
S
I, E, P,
S
I, E, P,
S
I, E, P,
S
I
2
M
C-bus video encoder: general
disable video
encoder
bit rate mode
GOP definition
user data GOP
header
number of user data
GOP
number of user data
picture header
user data picture
header
noise filter
coefficients
adaptive
quantization depth
COMMAND NAME R/W
R/W 1 byte
R/W 1 byte
R/W 2 bytes
R/W 64 bytes
R/W 1 byte
R/W 1 byte
R/W 64 bytes
R/W 2 bytes
R/W 1 byte
SIZE/POSITION
bit 0 = 0
bit 0 = 1
bit 0 = 0
bit 0 = 1
byte 0
byte 1
byte 0
byte 1
enabled
disabled
VBR
CBR
distance (M) (0 to 3)
length (N) (0 to 19)
gain
criterion
0 to 128
PARAMETER/RANGE
DEFAULT
enabled
VBR
0001H:
M = 0;
N = 1
all 0
0
0
all 0
off
32
Specifies if the video encoder is enabled.
If the video encoder is disabled, no video
data will be inserted in the output stream.
defines the encoding bit rate control mode
(variable or constant bit rate)
Defines the used GOP structure as (N.M),
where ‘N’ is the number of frames per GOP
and ‘M’ is the distance of 2 sequential I- or
P-frames (reference frame distance);
distance = 0 is I-frame coding; see Table 3
for meaningful combinations.
Specifies the data to be inserted into the
GOP header.
Specifies the amount of user data to be
inserted into the GOP header.
Specifies the amount of user data to be
inserted into the picture header.
Specifies the data to be inserted into the
picture header. If internal user data insertion
of Closed Caption data into the GOP header
is active and the GOP size is larger than 9,
then the insertion of user data to the picture
header is not available.
Defines the noise filter coefficients gain and
criterion scale.
Selects the depth of quantization
adaptation; 0 for no adaptation, 128 for
maximum adaptation.
DESCRIPTION