what's the meaning of "Vstart" in ADP7104 datasheet?

In ADP7104 datasheet, there is a shreshold for UVLOrise/UVLOfall for EN/UVLO pin, In my opinion it means Vout is enabled when the input of EN/UVLO is bigger than 1.28V and Vout is disabled when the input of EN/UVLO is less than 1.13V(or less), am i right?

I don't understand what Vstart means? 

If i just want to control the ADP7104 power-on/off by CPLD, if i can connect the EN/UVLO pin to the 2.5V bank of CPLD?