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SAA7118 Datasheet(PDF) 65 Page - NXP Semiconductors |
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SAA7118 Datasheet(HTML) 65 Page - NXP Semiconductors |
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65 / 169 page  2001 May 30 65 Philips Semiconductors Preliminary specification Multistandard video decoder with adaptive comb filter and component video input SAA7118 Table 20 Explanation to Fig.37 Notes 1. Inverted EP (bit 7); for EP see note 2. 2. Even parity (bit 6) of bits 5 to 0. 3. Odd parity (bit 7) of bits 6 to 0. NAME EXPLANATION SAV start of active data; see Table 21 SDID sliced data identification: NEP(1), EP(2), SDID5 to SDID0, freely programmable via I2C-bus subaddress 5EH, D5 to D0, e. g. to be used as source identifier DC Dword count: NEP(1), EP(2), DC5 to DC0. DC describes the number of succeeding 32-bit words: • For SAV/EAV mode DC is fixed to 11 Dwords (byte value 4BH) • For ANC mode it is: DC = 1⁄4(C + n), where C = 2 (the two data identification bytes IDI1 and IDI2) and n = number of decoded bytes according to the chosen text standard. It should be noted that the number of valid bytes inside the stream can be seen in the BC byte. IDI1 internal data identification 1: OP(3), FID (field 1 = 0, field 2 = 1), LineNumber8 to LineNumber3 = Dword 1 byte 1; see Table 21 IDI2 internal data identification 2: OP(3), LineNumber2 to LineNumber0, DataType3 to DataType0 = Dword 1 byte 2; see Table 21 Dn_m Dword number n, byte number m DDC_4 last Dword byte 4, note: for SAV/EAV framing DC is fixed to 0BH, missing data bytes are filled up; the fill value is A0H CS the check sum byte, the check sum is accumulated from the SAV (respectively DID) byte to the DDC_4 byte BC number of valid sliced bytes counted from the IDI1 byte EAV end of active data; see Table 21 |
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