Error (169032): I/O bank QL<n> contains input or bidirectional pins with I/O standards that make it impossible to choose a legal VCCIO value for the bank

Description

You might encounter the following Quartus® II Fitter error for Cyclone® IV GX device transceiver input pins using LVDS I/O standard.

"Error (169032): I/O bank QL<n> contains input or bidirectional pins with I/O standards that
make it impossible to choose a legal VCCIO value for the bank"

It is a Quartus II software known issue and will be fixed in a future Quartus II software release.

Resolution

Assign 1.5 V PCML I/O standard to Cyclone® IV GX FPGA transceiver input pins.