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TDA4VM: What‘s the difference between several reset methods?

Shukai Ming
Prodigy 250 points
Part Number: TDA4VM

Hi experts,

  I found several different reset methods in TRM:  Power-On Reset, Warm Reset, Cold Reset, Global Soft Reset...

  What's the difference between them? What will they reset respectively?

Thanks,

Shukai

  • 0
    TI__Guru** 110971 points

    Hi Shukai,

    Please reference TRM Section 5.3.2 Reset Sources.   Table 5-2212, gives a good definition of the Reset Source, and Type column along with the sequence sublinks, provide additional detail.

    Regarding "Global Soft Reset" which section of the TRM is being referenced?

    Regards,

    kb

  • 0 in reply to KB
    Prodigy 250 points

    Hi KB,

      TRM Section 12.11.2.5 ESM Registers ,  ESM_SFT_RST register mentioned Global Soft Reset.

    Thanks,

    Shukai

  • +1 in reply to Shukai Ming
    TI__Guru** 110971 points

    Thanks Shukai,

    The Global Soft Reset documented in the ESM section of the TRM, deals with the ESM module only.  The ESM_SFT_RST KEY, can be used to clear all the raw status bits and all enable bits in the ESM module, putting the error pin to the ESM_IDLE.   

    Section 12.11.2.4.3 ESM Error Pin Output, goes over the flow chart.

    Keep in mind that:

    Regards,

    kb