SBAA457 June 2021 PCM6240-Q1 , PCM6260-Q1 , PCM6340-Q1 , PCM6360-Q1
For a 12-MHz MCLK, the following I2C script configures the PCM6xx0 as controller mode with GPIO1 as MCLK input for a 44.1-kHz or 48-kHz sampling rate:
w 90 21 a0 # configure GPIO1 as MCLK input
w 90 13 80 # configure device as master with MCLK = 12 MHz
w 90 14 48 # FS = 44.1/48k BCLK/ratio = 256