Device Family: Intel® Stratix® 10

Intel Software: Quartus Prime Pro

Type: Answers

Area: Intellectual Property

Last Modified: May 06, 2020
Version Found: v19.3
Bug ID: 22010664625
Document ID: UG-20032
Document Version Found: April 22, 2020
IP: Avalon-ST Stratix 10 Hard IP for PCI Express

Error(11176): Alt_sld_fab_0.alt_sld_fab_0.alt_sld_fab_0.stfabric.demux: "Number of Output Ports" (numOutputInterfaces) 22 is out of range: 1-16


This error may be seen in the Intel® Quartus® Prime Pro edition software version 19.3 and earlier when enabling the PCIe Link Inspector and the proper clock and reset connections are not made. When enabling the PCIe Link Inspector ensure the following clock signals are connected to a 100MHz clock source:

  • hip_reconfig_clk
  • xcvr_reconfig_clk
  • reconfig_pll0_clk
  • reconfig_pll1_clk

Additionally ensure that the following reset signals are connected to an appropriate reset signal:

  • hip_reconfig_rst_n
  • xcvr_reconfig_reset
  • reconfig_pll0_reset
  • reconfig_pll1_reset


This information is scheduled to be added in a future release of the Intel® Stratix® 10 Avalon® streaming and Single Root I/O Virtualization (SR-IOV) Interface for PCI Express Solutions User Guide.