术语 | interrupt priority |
释义 | interrupt priority 中断优先权;[岔断优先度] The priorities assigned frequently to interrupt requests. Whenever two inter- rupts occur simultaneously, the one with the higher priority is considered first. Furthermore, a higherpriority interrupt can interrupt the service routine of a lowerpriority interrupt.Most microprocessors do not have builtin priorities, and these must be handled either with software or external hardware. 通常指定给各种中断请求的优先权别。每当两个中断同时发生时,首先响应优先权较高 的那一个中断,而且一个优先权较高的中断可以打断优先权较低的中断的服务例行程序。 大多数微型计算机都没有内建的优先权,因此必须由软件或外部硬件来处理中断请求。 |
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