Digging into SD host controller on MK20DN512VLQ10

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Digging into SD host controller on MK20DN512VLQ10

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garylynch
Contributor IV

I am doing maintenance on a product based on the MK20DN512VLQ10 and am having trouble understanding the data sent to the peripheral registers of its SD host controller.  I contacted the help desk yesterday, asking for the reference manual.  Downloaded suggested document from:
- https://www.nxp.com/docs/en/data-sheet/K20P144M100SF2V2.pdf

When I search it for SDHC, I find a chapter with some timing diagrams and a table of the pins where the signals emerge.  No mention of peripheral registers whatsoever.

I have previously used reference manuals for K60, K10, and K70 processors and they all contained full disclosure for all peripherals. Why can't I find it here?

Advanced thanks for your suggestions.

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garylynch
Contributor IV

Thanks, Mark.  Your feedback is spot-on, as usual.

So I was correct in asking for the Reference Manual, but should have paid more attention to the first page as the data sheet is so similar.

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mjbcswitzerland
Specialist V

Hi Gary

You have a link to the data sheet and not the reference manual.


You can get the K20 100MHz parts' reference manuals at

Arm Cortex-M4|Kinetis K20 100 MHz 32-bit USB MCUs | NXP 

Regards

Mark
[uTasker project developer for Kinetis and i.MX RT]

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garylynch
Contributor IV

Thanks, Mark.  Your feedback is spot-on, as usual.

So I was correct in asking for the Reference Manual, but should have paid more attention to the first page as the data sheet is so similar.

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