LAUNCHXL-F280049C: About Manual Slave Address Acknowledgement in PMBus module

Hi,

    I set MAN_SLAVE_ACK bit of PMBSC register and reset ACK bit of PMBACK register in slave.Does the PMBUS bus return to bus idle immediately, or does it return to bus idle after a timeout (by PMBTIMLOWTIMOUT or PMBTIMHIGHTIMOUT)? 

   Thanks！