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SX127x CadDone Behavior

Hi All:

I have a quick clarification question on the behavior of the CadDone interrupt. Please refer to page 43 of the SX1276 data sheet.

The flow diagram on page 43 seems to imply that the CadDone interrupt will be fired regardless of whether channel activity is detected. The CadDetected IRQ bit is used to determine whether any activity was found. However, I am not seeing the CadDone interrupt raised in the no activity case. Am I missing something? Is there a timeout value that I need to set?

Thanks in advance for the help, Bruce.