In datasheet page 11, equation between Ren1, Ren2 and Vstart, Vstop is given.
and "VEN is the enable threshold voltage of 1.25 V"
so Ven=1.25V, right?
If that's the case, I would suggest you can just specify it's 1.25V, otherwise it's easy to misinterpret Ven as the voltage on EN pin.