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PCM1865: TDM slave mode stuck in standby

Part Number: PCM1865


Hi,

I am trying to get PCM1865 to run in TDM mode with the default slave PLL autodetection from LRCK/BCK without SCK. I have provided a LRCK Fs 48000, BCK 12.288 MHz, and SCK is low.

I2S (default configuration with no register value changes) works, and when powered up, I can see data on the DOUT pin, and read register 0x72 as 0x0f. If I write to registers 0x0c 0x01 and 0x0b 0x13 (4 channel 32-bit TDM), it looks like the chip is stuck in standby mode, register 0x72 reads 0x03.

Register 0x74 reads 0x47 as expected.

Can I figure out somehow why the status remains in stand-by?