No audio format on playback panel

[Doc77]

DoP is where DSD format is packed on-the-fly into PCM frames that contain a special "DoP flag" that tells the DAC to unpack the frames and send the bits to the DSD processing section on the chip.

The DoP PCM formats are:
DSD64   -> 24 bit / 176.4 kHz
DSD128 -> 24 bit / 352.8 kHz

If you see 32 bit instead of 24 bit its because the DAC only accepts 32 bit word length. In this case 24 bit is simply zero-padded to 32-bit. The original 24 bits of data are left untouched.

Exactly as you see in the attached screenshots. The only difference, as we have already said, is that by selecting Dop, I have no sound (i2s only pcm..)

But from DSD 1bit I don't get PCM 176.4 khz, but PCM 352.8 Khz?!?! The .dsf file is the same DSD 1 bit 2.822 Mhz: this is a DSD64 or DSD128 ?? 
Is this normal?

Many thanks @Tim Curtis