LRC and BCK Clock setting for AD1938


I need your help to get some additional information while using AD1938.

If AD1938 is configured in master mode, will it continuously generate LRC and BCK even if all channels of ADC & DAC are muted?

Also, can someone please help me understand the rationale on why BCK and LRC clocks are free-running? Which operating scenario will demand BCK and LRC clocks to remain free-running?

Appreciate for your help and attention on this support request.