Hello,
in the SAI chapter of the Ref Man rev3, you can find this table:
There are some perplexing points:
- It seems that SAI1 cannot be fed by MCLK pin as other SAIs, and it has sai*_ipg_clk_sai_mclk selectable
- SAI3 seems to be able to be powered only by sai2_clk_root, instead of sai3_clk_root.
- SAI4 seems to have enabled only one option (MCLK pin) and no sai4_clk_root option at all.
but on MCUXpresso Config Tools 24.12 I see:
Looking at this diagram I can rewrite the points above:
- sai*_ipg_clk_sai_mclk seems to be the same of SAI*_MCLK pin
- SAI3 seems to be able to be powered by SAI3_CLK_ROOT
- SAI4 seems to have 2 option enabled including SAI4_CLK_ROOT as well as SAI4_MCLK pin
I believe that the documentation has “problems” and needs revision. Anyway please share with me, because maybe it could be Config Tool that is buggy.
best regards
Max
