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ES9822PRO 数据表(PDF) 28 Page - ESS Technology,Inc |
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ES9822PRO 数据表(HTML) 28 Page - ESS Technology,Inc |
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28 / 126 page  0.3 ES9822 PRO Product Datasheet ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM 28 Digital Audio Output Port Pins are configured in Master (AUX Output) or Slave (Aux Input) modes through GPIO Configurations. PCM Pin Connections See Audio Interface Timing (I2S) for timing criteria. Can select GPIO 4,5,6 for the datapath. Pin Name Function Description GPIO1 I2S BCLK I2S clock (Master or Slave) GPIO2 I2S WS I2S WS (Master or Slave) GPIO3 I2S DATA I2S DATA out (selectable for 2 channels) Table 11 - PCM Pin Connections TDM Pin Connections See Registers 7-15 for configuration, Can select GPIO 4-6 for the datapath. Pin Name Function Description GPIO1 TDM BCK TDM clock (Master or Slave) GPIO2 TDM WS TDM WS (Master or Slave) GPIO3 TDM DATA TDM DATA out (default) Table 12 - TDM Pin Connections DSD Pin Connections DSD requires 1 pin per ADC channel, any channel can be mapped to any of the GPIOs (GPIO3-6). See registers 6,7,19 for configuration Pin Name Function Description GPIO1 DSD Clock DSD Bit Clock (Master or Slave) GPIO3 DSD DATA out DSD data mapped to selected channel (Channel 1 default) GPIO4 DSD DATA out DSD data mapped to selected channel (Channel 2 default) Table 13 - DSD Pin Connections S/PDIF Pin Connections S/PDIF Output is provided on GPIOs. Use GPIOx_CFG for S/PDIF output. Pin Name Description GPIOx GPIOx_CFG setting for GPIO of 4’d8 (S/PDIF output) Table 14 - S/PDIF Pin Connections |
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