About: Programmable interrupt controller

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In computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQ) coming from multiple different sources (like external I/O devices) which may occur simultaneously. It helps prioritize IRQs so that the CPU switches execution to the most appropriate interrupt handler (ISR) after the PIC assesses the IRQ's relative priorities. Common modes of interrupt priority include hard priorities, rotating priorities, and cascading priorities. PICs often allow mapping input to outputs in a configurable way. On the PC architecture PIC are typically embedded into a southbridge chip whose internal architecture is defined by the chipset vendor's standards.

Attributes	Values
rdf:type	Thing
rdfs:label	Programmable interrupt controller (en)
rdfs:comment	In computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQ) coming from multiple different sources (like external I/O devices) which may occur simultaneously. It helps prioritize IRQs so that the CPU switches execution to the most appropriate interrupt handler (ISR) after the PIC assesses the IRQ's relative priorities. Common modes of interrupt priority include hard priorities, rotating priorities, and cascading priorities. PICs often allow mapping input to outputs in a configurable way. On the PC architecture PIC are typically embedded into a southbridge chip whose internal architecture is defined by the chipset vendor's standards. (en)
differentFrom	PIC microcontrollers
dbp:wikiPageUsesTemplate	dbt:Citation_needed dbt:Distinguish dbt:More_footnotes dbt:One_source dbt:Reflist
Subject	Digital electronics Interrupts Motherboard
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Programmable_interrupt_controller?oldid=1047789622&ns=0
Wikipage page ID	1805419 (xsd:integer)
page length (characters) of wiki page	3793 (xsd:nonNegativeInteger)
Wikipage revision ID	1047789622 (xsd:integer)
has abstract	In computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQ) coming from multiple different sources (like external I/O devices) which may occur simultaneously. It helps prioritize IRQs so that the CPU switches execution to the most appropriate interrupt handler (ISR) after the PIC assesses the IRQ's relative priorities. Common modes of interrupt priority include hard priorities, rotating priorities, and cascading priorities. PICs often allow mapping input to outputs in a configurable way. On the PC architecture PIC are typically embedded into a southbridge chip whose internal architecture is defined by the chipset vendor's standards. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Programmable_interrupt_controller
is Wikipage redirect of	Programmable Interrupt Controller Interrupt Mask Register Interrupt controller Interrupt mask register Interrupt request register Interrupt service register Computer Interrupt Equipment Computer interrupt equipment Interrupt Request Register Embedded Programmable Interrupt Controller PICs In-Service Register In-Service register
is Link from a Wikipage to another Wikipage of	NEAT chipset Non-maskable interrupt Ntoskrnl.exe Interrupt Mask Register Interrupt controller Interrupt mask register Interrupt request register Interrupt service register 78K AT91CAP Advanced Programmable Interrupt Controller Architectural state Architecture of Windows NT CIE DioneOS History of science and technology in Japan Message Signaled Interrupts Hudson Soft HuC6280 K1810VM86 KR580VM80A List of Intel chipsets List of Intel processors Communications Processor Module Computer Interrupt Equipment Computer interrupt equipment Task switching Controller (computing) List of computing and IT abbreviations Elbrus-2S+ End of interrupt Epic IBM Personal Computer IMR IRQL (Windows) IRR ISR Kernel (operating system) Industry Standard Architecture Input/output base address Input capture Intel 80186 Intel 80188 Intel 8080 Intel 8085 Intel 8259 Intel X99 Interrupt Interrupt Request Register Interrupt flag Interrupt handler Interrupt latency Interrupt priority level Interrupt request (PC architecture) Interrupt storm LEON Merge (software) Masatoshi Shima Embedded Programmable Interrupt Controller In-Service Register In-Service register

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