Output Pins of PLL Lock

Anfernee Chang

Hi Champs,

There are three pins below on C6678 Errata indicate the status of the main PLL lock, DDR3 PLL lock and PA PLL lock. Are there corresponding registers for checking the status?

• RSV20 - COREPLLLOCK
• RSV21 - DDR3PLLLOCK
• RSV22 - PAPLLLOCK

Best regards,

Anfernee

over 14 years ago

0 Chad Courtney over 14 years ago

TI__Mastermind 30825 points

Yes, that is what the Errata states. Normally these aren't needed and thus are marked reserved but for the issue documented in the errata we've let the user know they can be used to check the status of the PLL lock.

Best Regards,

Chad

0 Anfernee Chang over 14 years ago in reply to Chad Courtney

TI__Intellectual 1015 points

Hi Chad,

But are there registers could be checked from SW side for the same purpose instead of measuring the pins?

Regards,

Anfernee

0 Chad Courtney over 14 years ago in reply to Anfernee Chang

TI__Mastermind 30825 points

Ok, mis-read the original question. No, we do not of MMRs for reading the lock status.

Best Regards,

Chad

0 Anfernee Chang over 14 years ago in reply to Chad Courtney

TI__Intellectual 1015 points

Hi Chad,

Got it! Thank you!!

Regards,

Anfernee

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Output Pins of PLL Lock