Information regarding the USBH from reference manual

Srikanth1 · ‎2023-12-26

Hi

I am working on a custom board based on STM32MP157A . For USBH_EHCI while checking the register (USBH_EHCI_INSNREG05) mentioned in the reference manual (RM0436) it was mentioned to refer to UTMI specification. could you please suggest / share me the vendor specific UTMI specific document for the below attached image

Thanks&Regards

Srikanth

PatrickF · ‎2024-01-04

Hi @Srikanth1 ,

I have asked internally details for those 'vendor specific' fields. My first assumption is that bits 0 to 12 are not used in our implementation and might need to be removed from the documentation.

regards.

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PatrickF · ‎2024-01-04

Hi @Srikanth1 ,

I have asked internally details for those 'vendor specific' fields. My first assumption is that bits 0 to 12 are not used in our implementation and might need to be removed from the documentation.

regards.

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

PatrickF · ‎2024-01-05

Hi,

I got confirmation from expert than the bits 12-0 are not connected in our design and so will do nothing (i.e. vendor specific feature not used).

Future revision of Reference Manual will be updated to reflect this.

Regards.

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