Linux/PCM1681: PCM1681 SPI timing

Part Number:PCM1681

Tool/software: Linux

HI all:

We used the pcm1681 to output four channels.

Now we can not write the pcm1681's register by the spi bus.

From the pcm1681' datasheet, we can not find any spi bus and spi timing support.

There are no spi timing diagram.

So please give us more datasheet to know more spi bus.

We want to know the spi mode?

Thanks

regards