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STA310 数据表(PDF) 62 Page - STMicroelectronics |
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STA310 数据表(HTML) 62 Page - STMicroelectronics |
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62 / 90 page ![]() STA310 62/90 Downsampling filter Address: 0x70 Type: R/W Software Reset: NC Hardware Reset: UND Description: This register controls the downsampling filter for the LPCM video, LPCM audio modes. When decoding a 96kHz DVD-LPCM stream, it might be necessary to downsample the stream to 48kHz . 9.15 Bass redirection registers VOLUME0 Volume of first channel Address: 0x4E Type: RWS Software Reset: 0 Hardware Reset: UND Description: This register reads or writes the attenuation that is applied to the channel selected by CHAN_IDX. The volume of the left channel can be set up with a 0.5dB step. s If CHAN_IDX = 0, then VOLUME0 can be written with the attenuation that will be applied to Left channel. s If CHAN_IDX = 1, then VOLUME0 can be written with the attenuation that will be applied to Center channel. s If CHAN_IDX = 2, then VOLUME0 can be written with the attenuation that will be applied to Left Surround channel. s If CHAN_IDX = 5, then reading VOLUME0 provides the attenuation that is applied to Left channel. s If CHAN_IDX = 6, then reading VOLUME0 provides the attenuation that is applied to Center channel. s If CHAN_IDX = 7, then reading VOLUME0 provides the attenuation that is applied to Left Surround channel. s Other values of CHAN_IDX are reserved. VOLUME1 Volume of second channel Address: 0x63 Type: RWS Software Reset: 0 Hardware Reset: UND Description: This register reads or writes the attenuation that is applied to the channel selected by CHAN_IDX. The volume of the right channel can be set up with a 0.5dB step. s If CHAN_IDX = 0, then VOLUME1 can be written with the attenuation that will be applied to Right channel. s If CHAN_IDX = 1, then VOLUME1 can be written with the attenuation that will be applied to Subwoofer channel. s If CHAN_IDX = 2, then VOLUME1 can be written with the attenuation that will be applied to Right Surround channel. s If CHAN_IDX = 5, then reading VOLUME1 provides the attenuation that is applied to Right channel. s If CHAN_IDX = 6, then reading VOLUME1 provides the attenuation that is applied to Subwoofer channel. s If CHAN_IDX = 7, then reading VOLUME1 provides the attenuation that is applied to Right Surround channel. s Other values of CHAN_IDX are reserved. 7654321 0 Value Mode 0 Automatic (according to bitstream) 1 Force Downsampling 2 Suppress Downsampling 7654321 0 AVol0 765 4321 0 AVol1 |
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