P-Tile Avalon® Streaming Intel® FPGA IP for PCI Express* User Guide

ID 683059
Date 3/28/2022

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Document Table of Contents Interface Reset Signals

Table 47.  Interface Reset Signals
Signal Name Direction Clock EP/RP/BP Description
pin_perst_n Input Asynchronous EP/RP/BP This is an active-low input to the PCIe* Hard IP, and implements the PERST# function defined by the PCIe* specification.
p<n>_pin_perst_n where n = 0, 1, 2, 3 Output Asynchronous EP/RP/BP This is the PERST output signal from the Hard IP. It is derived from the pin_perst_n input signal.
p<n>_reset_status_n where n = 0, 1, 2, 3 Output Synchronous to coreclkout_hip EP/RP/BP This active-low signal is held low until pin_perst_n has been deasserted and the PCIe* Hard IP has come out of reset. This signal is synchronous to coreclkout_hip. When port bifurcation is used, there is one such signal for each Avalon® -ST interface. The signals are differentiated by the prefixes pn. This is a per-port signal.
ninit_done Input Asynchronous EP/RP A "1" on this active-low signal indicates that the FPGA device is not yet fully configured. A "0" indicates the device has been configured and is in normal operating mode.

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