2 dma controller, 2 on-chip dsp peripherals, 1 digital audio input port (dai) – Cirrus Logic CS4970x4 User Manual
Page 7: 2 digital audio output port (dao), 3 serial control port 1 & 2 (i2c or spi), 4 external memory interface, 5 general purpose input/output (gpio), 6 phase-locked loop (pll)-based clock generator, Table 3. cs4970x4 dsp memory sizes
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