When performing FPP configuration of EP4SGX180, EP4SGX230, EP4SGX290, EP4SGX360, EP4SGX530, EP4SE230, EP4SE360, EP4SE530, EP4SE820, EP4S40G2, EP4S40G5, EP4S100G2, EP4S100G3, EP4S100G4, and EP4S100G5 Stratix® IV devices using a high DCLK frequency, certain uncommon bitstream patterns may result in the device exhibiting higher than expected VCC current draw during configuration. When this occurs, the device will fail to enter user mode after configuration, or will assert a CRC_ERROR upon entering user mode.
Your system is not impacted if you do not observe the failure symptoms described above. Please contact Altera mySupport if you suspect your system is impacted by this issue.