Problem understanding Esp docs for I2S

[Esp_Noobe_Sag]

Hi everyone.
I am so new to esp developing and I'll be very glad if you could help me.

In esp-idf docs for I2S communication, in PDM Mode Tx section there is an image that shows Din/Dout pin sends Msb and Lsb values for right and left channels, however as I know, PDM is a PWM-like square wave signal with variable pulse widths that if goes through an RC filter, we could be able to get the analog main harmonic of the digitized signal. PDM sholdnt have any Msb or Lsb because it does not communicate digital data bytes but a series of pulse train to be filtered later. So what is wrong with my ideas or docs?
Thank

[ESP_Sprite]

Yes, your line of thought is correct. Can you tell me what document + figure you are referring to? I'll ask the documentation team to fix it.

[Esp_Noobe_Sag]

what document + figure

Hi again, Thank you for your response.

Below is the link of doc:
https://docs.espressif.com/projects/esp ... ce-i2s-pdm

And here is a screenshot of where I am confused:

[ESP_Sprite]

Sorry, your image doesn't work.

[Esp_Noobe_Sag]

posting image again

image for a misleading part in docs

Screenshot_20241024_101916_Chrome.jpg (734.74 KiB) Viewed 846 times