Category: INTERFACING ICS

Programming 8259

Programming 8259: The Programming 8259 requires two types of command words. Initialization Command Words (ICWs) and Operational Command Words (OCWs). The Programming 8259 can be initialized with four ICWs; the first two are compulsory, and the other two are optional based on the modes being used. These words must be issued in a given sequence. […]

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