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[C6747/DA8xx] IPU/IPD is valid during reset ?

Naoki Kawada
Guru 19890 points

Other Parts Discussed in Thread: DA8XX

Hi

I would like to confirm whether IPU/IPD registers are valid or not while reset pin is being asserted.
The same has been discussed here for OMAPL137.

http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/p/235970/831493.aspx#831493

I believe the same is also applicable for C6747/da8xx. Correct, right ?

Best Regards,
Kawada

  • 0
    TI__Mastermind 35645 points

    Hi Kawada,

    Thanks for your post.

    Yes, you are correct, it should be applicable to c6747/da830 but not da8xx.

     IPU/IPD value will remain same and never change during and after reset.

    Thanks & regards,

    Sivaraj K

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  • 0 in reply to Sivaraj Kuppuraj
    Guru 19890 points

    Hi Sivaraj,

    Thank you for your reply. Great to know that!
    For further my understanding, it is good to know it is same to c6745/da808 also.

    Thanks.
    Kawada

     

  • 0 in reply to Naoki Kawada
    TI__Mastermind 35645 points

    Hi Kawada,

    Thanks for your update.

    It is not same for c6745/da808 since this is of different architecture.

    Thanks & regards,

    Sivaraj K

     

  • 0 in reply to Sivaraj Kuppuraj
    Guru 19890 points

    Hi Sivaraj

    Thanks for your update.
    My understanding is that c6745/da808 is almost same in HW point of view and these devices are based on primus (OMAPL137) architecture. So, if OMAPL137's IPU/IPD is valid during reset, I wondered the behavior of c6745/da808's IPU/IPD was also same with OMAPL137's one.
    Did you mean this understanding was not correct ?

    Best Regards,
    Kawada

  • 0 in reply to Naoki Kawada
    TI__Mastermind 35645 points

    Hi Kawada,

    Thanks for your update.

    You need to check both the schematics of c6747/DA830 & c6745/DA808 and confirm whether in HW point of view, if it is same and I agree that, both the devices are primus based. I didn't mean, your understanding is wrong, just you need to confirm, both the devices should be same in HW point of view. If it is so, c6747/OMAPL137's IPU/IPD would be valid during & after reset.

    Thanks & regards,
    Sivaraj K