- In microprocessor chip families, a controller that enables a microcomputer to handle more interrupt lines. These controllers accept as many as eight interrupt sources, each of which is vectored to a separate address specified by the programmer. Moreover, they can be cascaded together to handle virtually any number of interrupts.; 微处理芯片系列中的一种控制器,使得微计算机能够管理更多的中断线。这些控制器 能够接受多达8个中断源,每个中断源都被引导到由程序员可以指定的地址上,而且它们还 可以串联到一起,以管理更多的中断。
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