PGA460: Interface Conditions Under Shutdown

Part Number:PGA460

Hello Team,

One of my customers are designing using the PGA460 and had a couple of questions about the state of the interface under a shutdown condition.

1)      Will the TX pin still have a weak pull-up to IOREG or does this shutdown to conserve power?

2)      If the RX input is held low and the device then shuts down will the device remain in shutdown, or will keeping the input low cause it to come out of shutdown?

Could you help clarify this? 

Thanks