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ADV7183A
PAL CCAP Data
Half-Byte output mode is selected by setting CDECAD = 0, full-
byte output mode is selected by setting CDECAD = 1. See the
GDECAD Gemstar Decode Ancillary Data Format (SDP),
Address 0x4C, [0] section. Table 159 and Table 160 list the bytes
of the data packet.
Rev. A | Page 60 of 104
Notes
Only closed caption data from the SDP core can be
embedded in the output data stream. PAL closed caption
data is sliced from lines 22 and 335. The corresponding
enable bits have to be set.
See the GDECEL[15:0] Gemstar Decoding Even Lines
(SDP), Address 0x48, [7:0]; Address 0x49, [7:0] and
GDECOL[15:0] Gemstar Decoding Odd Lines (SDP),
Address 0x4A, [7:0]; Address 0x4B, [7:0] sections.
Table 159. PAL CCAP Data, Half-Byte Mode
Byte
D[9]
D[8]
0
0
0
1
1
1
2
1
1
3
0
1
4
!EP
EP
5
!EP
EP
6
!EP
EP
7
!EP
EP
8
!EP
EP
9
!EP
EP
10
!CS[8]
CS[8]
D[7]
0
1
1
0
EF
0
0
0
0
0
CS[7]
D[6]
0
1
1
1
0
0
0
0
0
0
CS[6]
D[5]
0
1
1
0
1
0
D[4]
0
1
1
0
0
0
CCAP word1[7:4]
CCAP word1[3:0]
CCAP word2[7:4]
CCAP word2[3:0]
CS[4]
D[3]
0
1
1
0
1
0
D[2]
0
1
1
0
0
1
D[1]
0
1
1
0
0
0
0
0
0
0
CS[1]
D[0]
0
1
1
0
0
0
0
0
0
0
CS[0]
Description
Fixed preamble
Fixed preamble
Fixed preamble
DID
SDID
Data count
User data-words
User data-words
User data-words
User data-words
Checksum
CS[5]
CS[3]
CS[2]
Table 160. PAL CCAP Data, Full-Byte Mode
Byte
D[9]
D[8]
0
0
0
1
1
1
2
1
1
3
0
1
4
!EP
EP
5
!EP
EP
6
7
8
1
0
9
1
0
10
!CS[8]
CS[8]
D[7]
0
1
1
0
EF
0
D[6]
0
1
1
1
0
0
CCAP word1[7:0]
CCAP word2[7:0]
0
0
CS[6]
D[5]
0
1
1
0
1
0
D[4]
0
1
1
0
0
0
D[3]
0
1
1
0
1
0
D[2]
0
1
1
0
0
1
D[1]
0
1
1
0
0
0
0
0
0
0
CS[1]
D[0]
0
1
1
0
0
0
0
0
0
0
CS[0]
Description
Fixed preamble
Fixed preamble
Fixed preamble
DID
SDID
Data Count
User data-words
User data-words
UDW padding 200h
UDW padding 200h
Checksum
0
0
CS[7]
0
0
CS[5]
0
0
CS[4]
0
0
CS[3]
0
0
CS[2]