2 ms·
Depends on the system architecture. But a lot of complex systems have been message signaled internally for a very long time, hypertransport based systems being
by monocasa 4y ago
Depends on the system architecture. But a lot of complex systems have been message signaled internally for a very long time, hypertransport based systems being a prominent early example in the desktop/server space.
- eqvinox 4y agoIndeed there are no interrupt pins in PCI express at all, you only have a choice between special "Legacy/Compatibility" Assert_INTx message packets, or plain Memory Writes for MSI/MSI-X. But both are carried as in-band PCIe packets on the high speed lanes.