AP-730 Interfacing the 82C59A to Intel 186 Family Processors

Many engineers have found that their applications require more external interrupt requests than are provided on the Intel 186 family of embedded processors. Intel P82C59A-2 programmable interrupt controllers (PIC) can be added to a design to increase the number of available interrupt requests; this application note explains how.

This application note contains the following:

• A reference design
• An analysis of the timings for the reference design and design considerations related to this timing data
• Design considerations for cascading 82C59As
• Source code for the programs used to test the reference design and design considerations

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