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ADV7183ABST Datasheet(PDF) 59 Page - Analog Devices |
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ADV7183ABST Datasheet(HTML) 59 Page - Analog Devices |
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59 / 104 page ![]() ADV7183A Rev. A | Page 59 of 104 Table 156. Gemstar 1× Data, Full-Byte Mode Byte D[9] D[8] D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] Description 0 0 0 0 0 0 0 0 0 0 0 Fixed preamble 1 1 1 1 1 1 1 1 1 1 1 Fixed preamble 2 1 1 1 1 1 1 1 1 1 1 Fixed preamble 3 0 1 0 1 0 0 0 0 0 0 DID 4 !EP EP EF 0 line[3:0] 0 0 SDID 5 !EP EP 0 0 0 0 0 1 0 0 Data count 6 Gemstar word1[7:0] 0 0 User data-words 7 Gemstar word2[7:0] 0 0 User data-words 8 1 0 0 0 0 0 0 0 0 0 UDW padding 200h 9 1 0 0 0 0 0 0 0 0 0 UDW padding 200h 10 !CS[8] CS[8] CS[7] CS[6] CS[5] CS[4] CS[3] CS[2] CS[1] CS[0] Checksum Table 157. NTSC CCAP Data, Half-Byte Mode Byte D[9] D[8] D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] Description 0 0 0 0 0 0 0 0 0 0 0 Fixed preamble 1 1 1 1 1 1 1 1 1 1 1 Fixed preamble 2 1 1 1 1 1 1 1 1 1 1 Fixed preamble 3 0 1 0 1 0 0 0 0 0 0 DID 4 !EP EP EF 0 1 0 1 1 0 0 SDID 5 !EP EP 0 0 0 0 0 1 0 0 Data count 6 !EP EP 0 0 CCAP word1[7:4] 0 0 User data-words 7 !EP EP 0 0 CCAP word1[3:0] 0 0 User data-words 8 !EP EP 0 0 CCAP word2[7:4] 0 0 User data-words 9 !EP EP 0 0 CCAP word2[3:0] 0 0 User data-words 10 !CS[8] CS[8] CS[7] CS[6] CS[5] CS[4] CS[3] CS[2] CS[1] CS[0] Checksum Table 158. NTSC CCAP Data, Full-Byte Mode Byte D[9] D[8] D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] Description 0 0 0 0 0 0 0 0 0 0 0 Fixed preamble 1 1 1 1 1 1 1 1 1 1 1 Fixed preamble 2 1 1 1 1 1 1 1 1 1 1 Fixed preamble 3 0 1 0 1 0 0 0 0 0 0 DID 4 !EP EP EF 0 1 0 1 1 0 0 SDID 5 !EP EP 0 0 0 0 0 1 0 0 Data count 6 CCAP word1[7:0] 0 0 User data-words 7 CCAP word2[7:0] 0 0 User data-words 8 1 0 0 0 0 0 0 0 0 0 UDW padding 200h 9 1 0 0 0 0 0 0 0 0 0 UDW padding 200h 10 !CS[8] CS[8] CS[7] CS[6] CS[5] CS[4] CS[3] CS[2] CS[1] CS[0] Checksum NTSC CCAP Data Half-byte output mode is selected by setting CDECAD = 0, the full-byte mode is enabled by CDECAD = 1. See the GDECAD Gemstar Decode Ancillary Data Format (SDP), Address 0x4C, [0]. The data packet formats are shown in Table 157 and Table 158. Notes • Only closed caption data from the SDP core can be embedded in the output data stream. • NTSC closed caption data is sliced on line 21d on even and odd fields. The corresponding enable bit has to be set high. 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. |
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