AD9361 TXNRX signal and transmit timing

Hi,

When AD9361 is in FDD independent control mode and while ENSM is in the FDD state when exactly AD9361 starts transmitting?

For example in 2R2T DDR, Dual Port configuration,  ENSM is in FDD state, TXNRX is set high (TX enabled) until the TX_FRAME signal goes high does AD9361 starts transmitting anything on one of the TX channels?

Thanks,

Asli