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GS2970A Datasheet(PDF) 94 Page - Semtech Corporation |
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GS2970A Datasheet(HTML) 94 Page - Semtech Corporation |
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94 / 150 page  GS2970A 3Gb/s, HD, SD SDI Receiver Data Sheet 54244 - 2 September 2012 94 of 150 Mute On Loss Of Lock When the GS2970A loses lock (LOCKED signal is LOW), the audio de-embedder sets all audio outputs LOW (no audio formatting is performed). The ACLK, WCLK and AMCLK outputs are also forced LOW. 4.19.4 Error Reporting 4.19.4.1 Data Block Number Error When the 1-255 count sequence in the Data Block Number (DBN) word of Group A audio data packets is discontinuous, the DBNA_ERR bit in the host interface AUDIO_ERROR_STAT_X register is set HIGH. When the 1-255 count sequence in the DBN word of Group B audio data packets is discontinuous, the DBNB_ERR bit in the AUDIO_ERROR_STAT_X register is set HIGH. The DBNA_ERR and DBNB_ERR flags also have associated SD_AUDIO_ERROR_MASK and HD_AUDIO_ERROR_MASK register flags for configuration of error reporting in the Receiver. The DBNA_ERR and DBNB_ERR flags remains set until cleared by writing to these locations. 4.19.4.2 ECC Error The GS2970A monitors the ECC error status of the two selected audio groups, as described in Section 4.19.2.6 on page 86. The ECC[N]_ERROR flags also have associated SD_AUDIO_ERROR_MASK and HD_AUDIO_ERROR_MASK register flags for configuration of error reporting in the Receiver. The ECC[N]_ERROR flags remain set until read via the host interface. Table 4-25:Audio Mute Control Bits Name Description Default MUTE_ALL Ch1-8 audio mute enable (1: Enabled)0 MUTE8 Ch8 audio mute enable (1: Enabled)0 MUTE7 Ch7 audio mute enable (1: Enabled)0 MUTE6Ch6 audio mute enable (1: Enabled)0 MUTE5 Ch5 audio mute enable (1: Enabled)0 MUTE4 Ch4 audio mute enable (1: Enabled)0 MUTE3 Ch3 audio mute enable (1: Enabled)0 MUTE2 Ch2 audio mute enable (1: Enabled)0 MUTE1 Ch1 audio mute enable (1: Enabled)0 |
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