Maskableinterrupt sources that cannot preempt the kernel code and are thus able to invoke operating system APIs from within their handlers.
正规中断。不能抢占内核的掩码中断源，因此可以在处理程序中调用操作系统API。
2
Maskableinterrupt sources with the ability to preempt the kernel code and thus have a lower latency and are less subject to jitter, see Response Time and jitter.
可以抢占内核的掩码中断源，因此拥有更短的延迟时间并且不容易受抖动，参考响应时间与抖动。
3
This paper studies the interrupt latency and context-switch time of embedded real-time operating system, and about the interrupt latency a non-maskableinterrupt idea is put forward.