External Memory Interfaces Intel® Stratix® 10 FPGA IP User Guide

ID 683741
Date 3/11/2022
Public

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11.1.1.1. PHY or Core

Timing analysis of the PHY or core path includes the path from the last set of registers in the core to the first set of registers in the periphery (C2P), path from the last set of registers in the periphery to the first set of registers in the core (P2C) and ECC related path if it is enabled.

Core timing analysis excludes user logic timing to or from EMIF blocks. The EMIF IP provides a constrained clock (for example: ddr3_usr_clk) with which to clock customer logic; pll_afi_clk serves this purpose.

The PHY or core analyzes this path by calling the report_timing command in <variation_name>_report_timing.tcl and <variation_name>_report_timing_core.tcl.

Note: In version 14.1 and later, the Spatial Pessimism Removal slack values in the Core to Periphery and Periphery to Core tables are always equal to zero. This occurs because pessimism removal is integrated into the base timing analysis.

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