Device Family: Intel® Arria® 10 GT, Intel® Arria® 10 GX, Intel® Arria® 10 SX, Arria® V GZ, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers

Area: Intellectual Property

IP Product: PCI Express 1/2/4/8 Lanes (x8)

Why does my Altera Hard IP for PCI Express not enter compliance loopback in Gen 3 mode?


The Altera® Hard IP core for PCI® Express will not enter compliance loopback mode at Gen3 rates if the compliance receive bit in the configuration register space, has not been set by the loopback master.


To comply with the PCI Express Specification, ensure your loopback master sets the compliance receive bit correctly.