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AM62A7-Q1: Use of WKUP_LFOSC0

KenF
Expert 7150 points
Part Number: AM62A7-Q1
Other Parts Discussed in Thread: AM62A7, AM62A3, SYSCONFIG

Hello Experts,

My customer is building their own board and has a question.

Per Hardware Design Guide for AM62A7/AM62A3 Devices (www.ti.com/.../sprad85), "Use of WKUP_LFOSC0 is optional, depending on the system requirements." When is WKUP_LFOSC0 needed? Could you give us some specific examples?

Best regards,
Ken

  • +1
    TI__Guru 63145 points

    Internally generated 32 kHz clock sources are not as accurate as WKUP_LFOSC0. The customer should use the clock tree tool function in the SYSCONFIG tool to understand which internal functions could benefit from a more accurate 32 kHz clock. They would need to decide if their use case requires any of these functions to be clocked from a more accurate 32.768 kHz source.

    Note: the SYSCONFIG tool can be found under Design & Development / Software Development in the AM62Ax product folder on ti.com.

    Regards,
    Paul