If the clock source for Remote Update Intel® FPGA IP is shared with the flash controller IP (ASMI Parallel Intel FPGA IP, ASMI Parallel II Intel FPGA IP, Serial Flash Controller Intel FPGA IP, Serial Flash Controller II Intel FPGA IP, Generic QUAD SPI Controller Intel FPGA IP, Generic QUAD SPI Controller II Intel FPGA IP, or Generic Serial Flash Interface Intel FPGA IP), the maximum frequency is limited by the maximum frequency supported by the respective flash controller IP.
If the clock source for Remote Update Intel FPGA IP is not shared with the flash controller IP, the maximum frequency can be as high as 100MHz for Arria® 10, Cyclone® 10 GX, Arria® V, Cyclone V and Stratix® V devices.