Kinetis MicrocontrollersのトピックRe: MK22DX128VMC5 I2S Module Pinout

MK22DX128VMC5 I2S Module Pinout

rsk2 — Fri, 02 Nov 2018 18:16:37 GMT

I'm wondering if there is an error in the MK22DX128VMC5datasheet: https://www.nxp.com/docs/en/data-sheet/K22P121M50SF4.pdf

Section 8.1 shows signals I2S0_TXD1 available on PTC0 and I2S0_RXD1 on PTC11. However section 3.9.5.1 of the reference manual (https://www.nxp.com/docs/en/reference-manual/K22P121M50SF4RM.pdf ) says there is only one TX data line (I2S0_TXD0 I assume) and one RX data line (I2S0-RXD0?). Also, I am told only one data path seems to be supported in Processor Expert and MCUXpresso for this particular MCU.

I'm also wondering if the same problem exists in MK21DX128AVMC5.

Re: MK22DX128VMC5 I2S Module Pinout

rsk2 — Fri, 02 Nov 2018 19:43:10 GMT

BTW, I also noticed some errors in K24P121M120SF5 datasheet:
pin E6 is listed twice, one with name VDDIO_E and the other simply named VDD.

G7 is listed twice, VSS both times.

L10 and K10 are listed 6 times each.

Re: MK22DX128VMC5 I2S Module Pinout

victorjimenez — Tue, 06 Nov 2018 18:42:36 GMT

Hello Randy,

Thanks for providing all the information. Regarding the discrepancy on the datasheet and the reference manual of the MK22DX128VMC5 you are right, there is only on TX data line and it's I2S0_TXD0, the same goes for the RX data line. The information on the pinout table of the reference manual and datasheet that is showing I2S0_RXD1 and I2S0_TXD1 it's wrong, the same applies to the MK21DX128AVMC5. I already reported this.

Regarding the information of the K24 datasheet, VDDIO_E and VDD are the same. The multiple declarations of G7, L10, and K10 are redundant but it's not an error.

Hope it helps!

Victor.

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Re: MK22DX128VMC5 I2S Module Pinout

rsk2 — Thu, 10 Jan 2019 03:06:08 GMT

Wondering if I found another error: the pinout chart in the datasheet and reference manual shows 2 I2S data pins, but the section https://www.nxp.com/docs/en/data-sheet/K22P64M50SF4.pdf but section 3.9.5.1 of the RM says there is only one data pin? Which one is correct? I am guessing there is only one. Are the datasheets ever going to be corrected?

#Frustrated.

Re: MK22DX128VMC5 I2S Module Pinout

victorjimenez — Thu, 17 Jan 2019 21:44:03 GMT

Hello Randy,

Thanks for your feedback! There is only on TX data line and it's I2S0_TXD0, the same goes for the RX data line. I already passed this information to our documentation team, they will fix these discrepancies.

Regards,

Victor