About: Non-maskable interrupt

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In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors. Some NMIs may be masked, but only by using proprietary methods specific to the particular NMI. An NMI is often used when response time is critical or when an interrupt should never be disabled during normal system operation. Such uses include reporting non-recoverable hardware errors, system debugging and profiling, and handling of special cases like system resets.

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rdf:type	company
rdfs:label	Non-maskable interrupt (en)
rdfs:comment	In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors. Some NMIs may be masked, but only by using proprietary methods specific to the particular NMI. An NMI is often used when response time is critical or when an interrupt should never be disabled during normal system operation. Such uses include reporting non-recoverable hardware errors, system debugging and profiling, and handling of special cases like system resets. (en)
sameAs	Non-maskable interrupt Non-maskable interrupt
dbp:wikiPageUsesTemplate	dbt:Cite_web dbt:Mono dbt:Reflist dbt:Short_description
Subject	Debugging Interrupts
Link from a Wikipa... related subject.	dbpedia-pt:Interrupção_não-mascarada
gold:hypernym	Computer
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Non-maskable_interrupt?oldid=1052811108&ns=0
Wikipage page ID	1250055 (xsd:integer)
page length (characters) of wiki page	7503 (xsd:nonNegativeInteger)
Wikipage revision ID	1052811108 (xsd:integer)
Link from a Wikipage to another Wikipage	Floppy disk Macintosh Processor register Programmable interrupt controller Sun Microsystems Vertical blanking interval X86 +D 19-inch rack Advanced Programmable Interrupt Controller Amstrad PCW Atari BIOS Debugging Interrupts Chipset DISCiPLE Debugger Debugging Commodore 128 Commodore 64 Commodore International Computer architecture Computing Control-Alt-Delete Coprocessor Home computer Microsoft Microsoft Developer Network Parity bit Error Error correction code I386 IBM PC compatible IBM Personal Computer System Management Mode HP 95LX Hang (computing) Intel 8087 Inter-processor interrupt Interrupt Interrupt handler Interrupt latency Miles Gordon Technology ZX Spectrum MOS Technology MOS Technology 6502 MOS Technology 6551 MOS Technology CIA Multiface Nintendo Entertainment System Read-only memory Windows 2000
has abstract	In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors. Some NMIs may be masked, but only by using proprietary methods specific to the particular NMI. An NMI is often used when response time is critical or when an interrupt should never be disabled during normal system operation. Such uses include reporting non-recoverable hardware errors, system debugging and profiling, and handling of special cases like system resets. Modern computer architectures typically use NMIs to handle non-recoverable errors which need immediate attention. Therefore, such interrupts should not be masked in the normal operation of the system. These errors include non-recoverable internal system chipset errors, corruption in system memory such as parity and ECC errors, and data corruption detected on system and peripheral buses. On some systems, a computer user can trigger an NMI through hardware and software debugging interfaces and system reset buttons. Programmers typically use debugging NMIs to diagnose and fix faulty code. In such cases, an NMI can execute an interrupt handler that transfers control to a special monitor program. From this program, a developer can inspect the machine's memory and examine the internal state of the program at the instant of its interruption. This also allows the debugging or diagnosing of computers which appear hung. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Non-maskable_interrupt
is Wikipage redirect of	Non-Maskable Interrupt Non-Maskable interrupt Nonmaskable interrupt Non-Maskable Interrupts Non-Maskable interrupts Non maskable interrupt
is Link from a Wikipage to another Wikipage of	NMI Non-Maskable Interrupt Non-Maskable interrupt Nonmaskable interrupt OS/2 +D AIM-65 ARM Cortex-M ARM Cortex-R Advanced Programmable Interrupt Controller Blue screen of death Non-Maskable Interrupts Non-Maskable interrupts Non maskable interrupt Dick Smith Super-80 Computer DISCiPLE Commodore 64 Control-Alt-Delete High Precision Event Timer List of computing and IT abbreviations Motorola 68000 End of interrupt

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