Cyclone® V Hard Processor System Technical Reference Manual

ID 683126
Date 8/28/2023
Public
Document Table of Contents

29.2.1. Alternative Clock Inputs to HPS PLLs

This section lists alternative clock inputs to HPS PLLs.

  • f2h_periph_ref_clock—FPGA-to-HPS peripheral PLL reference clock. You can connect this clock input to a clock in your design that is driven by the clock network on the FPGA side.
  • f2h_sdram_ref_clock—FPGA-to-HPS SDRAM PLL reference clock. You can connect this clock to a clock in your design that is driven by the clock network on the FPGA side.