topic Can't find I2S MCLK source options in K22F documentation in Kinetis Microcontrollers

Can't find I2S MCLK source options in K22F documentation

scottm — Mon, 26 Jun 2017 18:27:07 GMT

The MK22FN1M0AVLH12 reference manual's section on the I2S module master clock says to see the chip-specific configuration information for the definitions of the input options used by I2Sx_TCR2[MSEL] and I2Sx_MCR[MICS]. I can't find those definitions in the chip-specific information - just the rather unhelpful statement that "The MCLK Input Clock Select bit of the MCLK Control Register (MCR[MICS]) selects the clock input to the I2S/SAI module’s MCLK divider."

Where are these clock source options listed?

Thanks,

Scott

Re: Can't find I2S MCLK source options in K22F documentation

Robin_Shen — Tue, 27 Jun 2017 06:55:20 GMT

Hi Scott,

See the chapter '5.7.9 I2S/SAI clocking' in K22P64M120SF5V2RM.

Best Regards,

Robin

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Re: Can't find I2S MCLK source options in K22F documentation

scottm — Tue, 27 Jun 2017 18:11:49 GMT

Thanks. I was confused because 3.9.6.2 is also entitled "I2S/SAI clocking" and there's no indication there that more information is to be found elsewhere. It would be great if someday all of the reference manuals had hyperlinks between sections whenever the relevant information is spread out.

Scott