Microprocessor20755 marksProgrammable Interrupt Controller 8259A
Differentiate between vectored and non-vectored interrupts. Where and how 8259 PIC can be used to handle interrupts.
Differentiate between vectored and non-vectored interrupts. Where and how 8259 PIC can be used to handle interrupts. [5]
--- Feature Vectored Interrupt Non-Vectored (Polled) Interrupt --------- Definition The interrupting device identifies itself and provides the address (vector) of its ISR directly to the CPU The CPU must poll each device to find out which one requested the interrupt Speed Faster, since the CPU ju...