TMS320F28069: CLA and CPU Arbitration

user5882000

Part Number: TMS320F28069

Hi,

How much delay is incurred in CPU if conflict arbitration between CPU and CLA occurs where the CLA has the higher priority?

Thanks,

Kim Ean

over 5 years ago

0 Praveen Kumar Ravichandran over 5 years ago

TI__Expert 4610 points

Kim,

What is the resource you are trying to arbitrate between CLA and CPU? RAMs or Peripherals?

Regards,
Praveen

0 user5882000 over 5 years ago in reply to Praveen Kumar Ravichandran

Prodigy 110 points

Hi Praveen,

The RAMs, CLA to CPU Message RAMs.

Thanks

0 Praveen Kumar Ravichandran over 5 years ago in reply to user5882000

TI__Expert 4610 points

Kim,

CPU should be able to process the RAM once the CLA is done with its ongoing access. Please note that CLA reads has less priority compared to CPU data read in case of CLA to CPU message RAM.

Regards,
Praveen

0 user5882000 over 5 years ago in reply to Praveen Kumar Ravichandran

Prodigy 110 points

Hi Praveen,

My CLA only writes to these variables, while CPU will read them.

Regards,

Kim Ean

0 Praveen Kumar Ravichandran over 5 years ago in reply to user5882000

TI__Expert 4610 points

Kim,

In that case, arbitration will come into effect only when there is an ongoing write from CLA. Once the CLA write is complete, CPU will be granted read access.

Regards,
Praveen

Note: If my post answers your query, please click "This resolved my issue" button.

0 Praveen Kumar Ravichandran over 5 years ago in reply to Praveen Kumar Ravichandran

TI__Expert 4610 points

Kim,

We are closing this thread. If you need more clarification, please post a new query

Regards,
Praveen

0 user5882000 over 5 years ago in reply to Praveen Kumar Ravichandran

Prodigy 110 points

Hi Praveen,

Ok. Thanks!

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TMS320F28069: CLA and CPU Arbitration