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STV82X8 数据表(PDF) 46 Page - STMicroelectronics |
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STV82X8 数据表(HTML) 46 Page - STMicroelectronics |
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46 / 157 page  Register List STV82x8 46/157 12 Register List Note: The unused bits (defined as ‘Reserved’) in the I²C registers must be kept to zero. The system clock registers (from address 08h to 0Bh and from address 5Ah to 5Dh) do not need to be modified if a standard 27 MHz crystal oscillator is used. The default values of the demodulator registers (from address 0Ch to 55h) are for optimum performances and any change is not recommended, except for: ● CAROFFSET1 (22h) to compensate IF carrier frequency with an out-of-standard offset. ● Soundlevel Prescaling PRESCALE_DEMOD_MONO (94h), PRESCALE_DEMOD_STEREO (95h), PRESCALE_DEMOD_SAP (96h), PRESCALE_SCART (97h), PRESCALE_I2S0 (98H), PRESCALE_I2S1 (99H), PRESCALE_I2S2 (9AH) to equalize demodulated or external audio signal before audio processing. ● Peak detector registers PEAK_DETECTOR (9Bh), PEAK_L (9Ch), PEAK_R (9Dh), PEAK_L_R (9Eh) can be used to measure internal sound level. Sound source selection for each audio output channel to be done using AUDIO_MATRIX1 (A2h), AUDIO_MATRIX2 (A3h) and AUDIO_MATRIX3 (A4h). Register AUTOSTD_CTRL (8Ah) is used to select the list of mono, stereo and SAP signals to be recognized automatically. Note: () used in reset value column means that the bit or the byte is read-only. (S) symbol indicates that the field value is represented in signed binary format. |
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