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PIC

Author: Gabriel Torres Last Updated: January 7, 2006 Category: CPU Programmable Interrupt Controller or Peripheral Interface Controller (1) Integrated circuit in charge of expanding the number of interruption lines (IRQ) the CPU supports, since processors used on the PC have only one interruption line. On the original 1981 PC the interrupt controller was an integrated circuit called 8259. Nowadays this circuit is embedded on the motherboard chipset (in the south bridge chip). (2) A kind of programmable microcontroller very popular among hobbyists since it is very easy to program and use in prototypes. Related Terms: ICD IRQ Print Version | Send to Friend | Bookmark this Term

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