TLV320AIC3120: AGC Questions

Part Number:TLV320AIC3120

Dear Sir,

Would you pls help for questions as below,

1. If I use PUREPATH to set up an AGC setting, does it belong to mini-DPS?  Is it different from normal AGC setting (below figure)?

2.  Besides, could you tell me what is the difference between 0db and “Reserved” in page 0 register 88 (AGC max. Gain) ?

Thanks, Ian.