I have reviewed T4240 Data Sheet and T2080 Data Sheet,found that they may be woking on the same VID mechanism.
There is a Note in T4240 Data Sheet:
"9. If VID is known at initial start-up, set VDD=VID else if VID is not known at initial start-up, set VDD to 1.025V and change it
immediately, to VDD=VID after reading VID at the beginning of booting."
Does this Note apply to T2080?