PHY Lite for Parallel Interfaces Intel® FPGA IP User Guide

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ID 683716
Date 12/13/2021
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3.3.2.1. Clock and Reset Interface Signals

Table 42.  Clock and Reset Interface Signals
Signal Name Direction Width Description
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 Intel® Stratix® 10 FPGA IP to core logic. 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 Intel® Stratix® 10 FPGA IP when you enable Specify additional output clocks based on existing PLL parameter.
pll_locked Output 1 This is the locked signal for the additional output clocks generated by the IP.

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