Data Type |
Access | Applies to | Coercion | High-Level Functions |
---|---|---|---|---|
ViBoolean | RO | N/A | None | None |
Returns TRUE if the selected time reference is currently providing a valid time signal. You must set an external time reference for this parameter to function.
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Note This attribute is supported only on certain targets. Refer to Target Support for Timing Attributes and Functions to determine whether or not this attribute is supported on your target. |