2 on-chip dsp peripherals, 1 digital audio input port (dai), 2 digital audio output port (dao) – Cirrus Logic CS4953xx User Manual
Page 8: 3 serial control port 1 & 2 (i2c or spi), 4 parallel control port, 5 external memory interface, 6 general purpose input/output (gpio), 7 phase-locked loop (pll)-based clock generator, 3 dsp i/o description, 1 multiplexed pins
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