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STV6412B 数据表(PDF) 23 Page - STMicroelectronics |
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STV6412B 数据表(HTML) 23 Page - STMicroelectronics |
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23 / 32 page ![]() STV6412B I²C bus selection 23/32 Table 23: Slow blanking and inputs control Reg Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0 05h Encoder R/C sub clamp 1 X X X X X X X X X X X X X X 0 1 Bottom level clamp Average level clamp VCR R/C sub clamp 1 X X X X X X X X X X X X 0 1 X X Bottom level clamp Average level clamp Encoder input level adjustment 2 X X X X X X X X X X X X 0 0 1 0 1 0 X X X X X X 0 dB for normal audio inputs +6 dB for weak audio inputs +9 dB for weak audio inputs Slow blanking TV SCART 2 X X X X X X X X 0 0 1 1 0 1 0 1 X X X X X X X X X X X X X X X X Input mode only Output < 2 V Output 16/9 format Output 4/3 format Slow blanking VCR SCART 2 0 0 1 1 0 1 0 1 X X X X X X X X X X X X X X X X X X X X X X X X Input mode only Output < 2 V Output 16/9 format Output 4/3 format Table 24: Standby modes Reg Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0 06h ENC inputs 1 X X X X X X X X X X X X X X 0 1 Inputs active Inputs disabled VCR inputs 1 X X X X X X X X X X X X 0 1 X X Inputs active Inputs disabled TV inputs 1 X X X X X X X X X X 0 1 X X X X Inputs active Inputs disabled AUX inputs 1 X X X X X X X X 0 1 X X X X X X Inputs active Inputs disabled VCR outputs 1 X X X X X X 0 1 X X X X X X X X Audio & video outputs ON Audio & video outputs OFF CINCH outputs 1 X X X X 0 1 X X X X X X X X X X Audio & video outputs on audio & video outputs OFF TV outputs 1 X X 0 1 X X X X X X X X X X X X Audio & video outputs ON Audio & video outputs OFF RFmod outputs 1 0 1 X X X X X X X X X X X X X X Audio & video outputs ON Audio & video outputs OFF Full stop 1 1 1 111 11 Only I²C bus and slow blanking detection parts are supplied. |
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