SAI max slot of i.MX-RT105x

[sugiyamatoshihi]

Hi, 

I'd like to confirm  max slot number of SAI in i.MX-RT.

There are below description  in 36.1.3 Synchronous Audio Interface (SAI) of reference manual.

• Maximum Frame Size of 32 Words
• Word size programmable from 8-bits to 32-bits

I  think max 2x16slot (32bits per 1 slot) can be output in one frame at TDM mode.

It may use 49.152MHz bit clock at 48kHz frame rate.

Is it possible?

Best Regards,

Sugiyama

[art]

The maximum bit clock frequency of the i.MX RT105x SAI module is limited to 25MHz, so, the answer is: no, it is not possible to transfer SAI data with the bit clock rate of 49.152MHz.

Have a great day,
Artur

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

[sugiyamatoshihi]

Hi, Artur,

Thank you for the answer.

I understood.

So, it means 48KHz frame rate, 16 slot is max with 24.576MHz clock

Best regards,

Sugiyama