About this document
8086 Interrupt Cycle Explained by yr48 is a document available to read on EtoBox.
The document describes the interrupt sequence and operating modes of an 8086-8259A interrupt controller system. The interrupt sequence involves the 8259A resolving interrupt requests, sending an interrupt signal to the CPU, and providing an interrupt vector. The 8259A has several operating modes including fully nested, automatic rotation, automatic EOI, specific rotation, specific mask, and edge/level triggered modes. These modes determine the priority scheme and behavior of interrupt handling.
- Author
- yr48
- Language
- EN