AM5716: C66x CorePac MPFSR FID meaning

Keith Elliott

Part Number: AM5716

Is there any table outlining the meaning of the different FID values in the Memory Protection Status Register FID field? I have been unable to find anything in the CorePac User Guide.

NOTE: This is a follow up from at the request of jian35385

over 6 years ago

0 Biser Gatchev-XID over 6 years ago

TI__Guru**** 393215 points

The factory team have been notified. They will respond here.

0 Keith Elliott over 6 years ago in reply to Biser Gatchev-XID

Intellectual 890 points

Thank you, have you heard back from the factory team?

0 Rogerio Almeida over 6 years ago in reply to Keith Elliott

TI__Mastermind 26025 points

Keith,
Sorry for the delay....last week was a short week due the holiday and some apps from our factory took vacation, so they are working to clean the pending posts...please expect a response soon...

0 Keith Elliott over 6 years ago in reply to Rogerio Almeida

Intellectual 890 points

Are there any updates on this?

0 jian35385 over 6 years ago in reply to Keith Elliott

TI__Mastermind 23125 points

Keith,

I was able to bug some colleagues on this topic - the Memory Protection Hardware of the CorePAC in the AM57x DSP subsystem is an undocumented feature. i.e., the hardware is there, but the mapping from DSP NoC to the CorePac is not documented. The intention was to use the DSP NoC's firewall capability, when CorePac memories are accessed from outside world. There are some brief descriptions in Section 5.3.2.2.3.4 of the AM5716 TRM, but I can imaging you may be confused.

let me know if you have a specific usage of the MPPA registers other than 0.

regards
jian

0 Keith Elliott over 6 years ago in reply to jian35385

Intellectual 890 points

I have no specific use case in mind, I was just attempting to fully document the memory error checking code I was implementing. Thanks for all of your help.

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AM5716: C66x CorePac MPFSR FID meaning