FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
Announcements
All support for Intel NUC 7 - 13 systems has transitioned to ASUS. Read latest update.

PCIe msi

Altera_Forum
Honored Contributor II
1,471 Views

Can anybody tell me how should configure "MSI enable" bit in "MSI control register" of PCI express IP is it through RTL or SYSTEM SOFTWARE

0 Kudos
1 Reply
Altera_Forum
Honored Contributor II
786 Views

This is done by your system software, a.k.a. the driver. If you enable this, the device will (have to) send interrupts not as legacy interrupts but as MSI. If you disable this, the device is only allowed to use legacy interrupts.

0 Kudos
Reply