18.104.22.168. Clock and Reset Interface Signals
|ref_clk||Input||1||Reference clock for the PLL. The reference clock must be synchronous with strobe_in to ensure the dqs_enable signal is in-sync with strobe_in.|
|reset_n||Input||1||Resets the interface. This signal is asynchronous.|
|interface_locked||Output||1||Interface locked signal from PHY Lite for Parallel Interfaces IP to Intel FPGA core. This signal indicates that the PLL and PHY circuitry are locked.
Data transfer should starts after the assertion of this signal.
|core_clk_out||Output||1|| Use this core clock in the core-to-periphery transfer of soft logic data and control signals.
The core_clk_out frequency depends on the interface frequency and clock rate of user logic parameter.
|pll_extra_clock[0..3]||Output||4||These are the additional output clock signals generated by PHY Lite for Parallel Interfaces IP when you enable Specify additional output clocks based on existing PLL parameter.
Important: PHY Lite for Parallel Interfaces in Intel® Arria® 10 and Intel® Cyclone® 10 GX devices do not support exposing additional output clocks when VCO frequency is below 600 MHz.
|pll_locked||Output||1||This is the locked signal for the additional output clocks generated by the IP.|
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