Critical Issue
Description
IntxAck_o is active in the Legacy Interrupt
Assertion and Legacy Interrupt Deassertion
timing diagrams found in the Arria V and Cyclone V Avalon-MM Interface
for PCIe Solutions User Guides. However, for Arria V and Cyclone V
devices, IntxAck_o is not active.
Resolution
No workaround is necessary. IntxReq_i instructs the Hard IP for PCI
Express to send an Assert_INTA message TLP. The deassertion of
IntxReq_i instructs the Hard IP for PCI Express to send a
Deassert_INTA message.