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HMP8191 Datasheet(PDF) 10 Page - Intersil Corporation |
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HMP8191 Datasheet(HTML) 10 Page - Intersil Corporation |
10 / 32 page 10 TABLE 6. BT.656 ANCILLARY DATA FORMAT FOR CLOSED CAPTIONING DATA PIXEL INPUT P15 P14 P13 P12 P11 P10 P9 P8 Preamble 1 0 0 0 0 0 0 0 0 Preamble 2 1 1 1 1 1 1 1 1 Preamble 3 1 1 1 1 1 1 1 1 Data ID ep# ep 1 1 0 0 0 Line Data Block Number ep# ep 0 0 0 0 0 1 Data Word Count ep# ep 0 0 0 0 0 1 Caption Register Byte 3 ep# ep 0 0 bit 15 bit 14 bit 13 bit 12 Caption Register Byte 1 ep# ep 0 0 bit 11 bit 10 bit 9 bit 8 Caption Register Byte 1 ep# ep 0 0 bit 7 bit 6 bit 5 bit 4 Caption Register Byte 0 ep# ep 0 0 bit 3 bit 2 bit 1 bit 0 CRC P14# X X X X X X X NOTE: The even parity (EP and EP#) bits are ignored. Line = Data Register Select: 0 = Line 21; 1 = 284. X = Don’t Care. TABLE 7. CLOSED CAPTIONING MODES CLOSED CAPTIONING ENABLE BITS OUTPUT LINE(S) CAPTIONING REGISTER WRITE STATUS BIT 284A 284B 21A 21B 284 21 00 None Ignored Ignored Always 1 Always 1 01 21 (NTSC) 18 (M PAL) 22 (Other PAL) Ignored Caption Data Always 1 0 = Loaded 1 = Output 10 284 (NTSC) 281 (M PAL) 335 (Other PAL) Caption Data Ignored 0 = Loaded 1 = Output Always 1 11 21, 284 (NTSC) 18, 281 (M PAL) 22, 335 (Other PAL) Caption Data Caption Data 0 = Loaded 1 = Output 0 = Loaded 1 = Output TABLE 8. BT.656 ANCILLARY DATA FORMAT FOR WIDESCREEN SIGNALLING DATA PIXEL INPUT P15 P14 P13 P12 P11 P10 P9 P8 Preamble 1 0 0 0 0 0 0 0 0 Preamble 2 1 1 1 1 1 1 1 1 Preamble 3 1 1 1 1 1 1 1 1 Data ID ep# ep 1 1 0 0 1 Line Data Block Number ep# ep 0 0 0 0 0 1 Data Word Count ep# ep 0 0 0 0 1 0 WSS Data Nibble 3 ep# ep 0 0 0 0 bit 13 bit 12 WSS Data Nibble 2 ep# ep 0 0 bit 11 bit 10 bit 9 bit 8 WSS Data Nibble 1 ep# ep 0 0 bit 7 bit 6 bit 5 bit 4 WSS Data Nibble 0 ep# ep 0 0 bit 3 bit 2 bit 1 bit 0 WSS CRC Nibble 1 ep# ep 0 0 0 0 bit 5 bit 4 WSS CRC Nibble 0 ep# ep 0 0 bit 3 bit 2 bit 1 bit 0 Reserved ep# ep 0 0 0 0 0 0 Reserved ep# ep 0 0 0 0 0 0 CRC P14# X X X X X X X NOTE: The even parity (EP and EP#) bits are ignored. Line = Data Register Select: 0 = Line 20; 1 = 283. The WSS CRC data bits are ignored during PAL operation but must be included in the transfer. X = Don’t Care. HMP8190, HMP8191 |
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