9.5.1.1 Hardware Control Configuration
PCM186x devices require the following functions to be configured on startup. Hardware-controlled devices require a subset of these configurations:
- Control interface type and address for PCM186x software-controlled devices
- The clock mode and rate (automatic in slave mode, or divider ratio in master mode) for hardware-controlled devices. For more details see the Clocks section.
- The interface audio data format for hardware-controlled devices.
- Digital filter selection (FIR or IIR) for hardware-controlled devices; requires a power cycle to change.
- Analog input channels and PGA gain for hardware-controlled devices.