Altera CPLD Max V (P/N: 5M2210ZF256C4)

I am supplying this CPLD from two separate power rails (A 1.8V rail and a 3.3V rail). The CPLD uses 1.8V for VCCI02 through VCCI04, and uses the 3.3V rail for VCCI01. The 1.8V rail starts up in about...