KS0123 데이터 시트보기 (PDF) - Samsung
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KS0123 Datasheet PDF : 44 Pages
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KS0123 Data Sheet
MULTIMEDIA VIDEO
Horizontal Ancillary Data Sequence (HANC)
The ancillary data contains additional timing information about the following video line. Table 2 shows the
sequence of the ancillary data. The HANC data, if present, should immediately follow the EAV code. The encoder
decodes the ancillary data if the ancillary data type code (TT) matches the data ID code stored in the internal
ANCDID register (index 07h).
The LSB of the ancillary data is a parity bit. The video encoder assumes that the data is error free and always
ignores this bit.
Table 2: Ancillary Data Sequence
Word ID Description
B7
B6
B5
B4
B3
B2
B1
B0
ANC(2) Ancillary Data
0
0
0
0
0
0
0
0
ANC(1)
Header
1
1
1
1
1
1
1
1
ANC(0)
1
1
1
1
1
1
1
1
TT
Data Type
TT6
TT5
TT4
TT3
TT2
TT1
TT0
P
Reserved
(R)
(R)
(R)
(R)
(R)
(R)
(R)
P
(R)
(R)
(R)
(R)
(R)
(R)
(R)
P
FIELD Field number and (R)
(R)
(R)
SVF/
F2
F1
F0
P
synchronous
video flag
PH(1)
Subcarrier
PHV PH12 PH11 PH10 PH9 PH8 PH7
P
Instantaneous
PH(0)
Phase
PH6 PH5 PH4 PH3 PH2 PH1 PH0
P
FR(4)
Subcarrier
FRV
(R)
(R) FR31 FR30 FR29 FR28
P
Frequency
FR(3)
FR27 FR26 FR25 FR24 FR23 FR22 FR21
P
FR(2)
FR20 FR19 FR18 FR17 FR16 FR15 FR14
P
FR(1)
FR13 FR12 FR11 FR10 FR9 FR8 FR7
P
FR(0)
FR6 FR5 FR4 FR3 FR2 FR1 FR0
P
Note: 1. P = odd parity bit
2. R = reserved bit; ignored by video encoder
The ancillary data header(ANC) consists of three bytes which indicate the start of the ancillary data. This is in
accordance with CCIR 656.
The data type code is used to specify the ancillary data type. The encoder compares this value with the value
programmed into the ANCDID register. If the two match, the encoder will process the ancillary data, otherwise the
encoder will ignore the ancillary data.
The field number bits are used by the encoder to program the field counter. The field number will be loaded to the
counter if SVF/ is low and the ancillary timing reference enable (ATMEN) bit is ‘1’.
Modified on May/04/2000
PAGE 9 OF 44
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