Description
No, Cyclone® III devices do not support PCI I/O standard with VCCIO of 3.3V. The device can only support the PCI I/O standard with a VCCIO of 3.0V.
Refer to AN447:Interfacing Cyclone III Devices with 3.3/3.0/2.5-V LVTTL/LVCMOS I/O Systems (PDF) for more details.