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.; 微處理芯片系列中的一種控制器,使得微計(jì)算機(jī)能夠管理更多的中斷線。這些控制器 能夠接受多達(dá)8個中斷源,每個中斷源都被引導(dǎo)到由程序員可以指定的地址上,而且它們還 可以串聯(lián)到一起,以管理更多的中斷。