Can a CPU be interrupted externally without being signalled by LINT[1:0] (or NMI/INTR)?
Posted on 2010-08-22 02:57:28 by logicman112

I think not.
You can use a software-based IO polling scheme, but that's not really "interrupting" the cpu.
IRQ and NMI are there for a reason, and hardware manufacturers tend not to duplicate functionality since it is pointless and costs something.
Posted on 2010-08-22 06:04:15 by Homer