Forum Discussion

New Contributor

6 years ago

How to obtain the End-point bus number from Hard IP for PCI Express Intel Arria 10 Avalon ST?

During assembly, a Memory Read Request's we need to know the End-point bus number which provided by Root Complex. If a wrong value used the Root Complex will not provide answers on End-point requests...

SengKok_L_Intel

Regular Contributor

6 years ago

Hi,

The BDF of an endpoint can be obtained from the configuration space register. You can refer to section 5.1.2 to 5.12.2 (transaction layer configuration space signals) for the detail, where the register name is cfg_busdev[12:0]

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_a10_pcie_avst.pdf

Regards -SK

Forum Discussion

How to obtain the End-point bus number from Hard IP for PCI Express Intel Arria 10 Avalon ST?

Recent Discussions

Agilex 7 slew rate reconfiguration

Agilex-7 AXI MCDMA for PCIe hang

Constraints not being picked for DCFIFO

Can't generate F-Tile Ethernet Hard IP Design Example

MAX10 TSE reference design