8.4.3InterruptRequestStatusRegister0(IRQ0)
8.4.4InterruptRequestStatusRegister1(IRQ1)
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AINTCRegisters
Theinterruptrequeststatusregister0(IRQ0)isshowninFigure8-7anddescribedinTable8-5.Interrupt
statusofINT[31:0](ifmappedtoIRQ).
Figure8-7.InterruptRequestStatusRegister0(IRQ0)
3116
IRQ
R/W-1
1510
IRQIRQ0
R/W-1R-1
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table8-5.InterruptRequestStatusRegister0(IRQ0)FieldDescriptions
BitFieldValueDescription
31-1IRQ[n]InterruptstatusofINTn,ifmappedtointerruptrequest(IRQ31-1).
0Whenreadingbit,interruptoccurred.
1Whenwritingbit,acknowledgeinterrupt.
0IRQ01Interrupt0isalwaysmappedtofastinterruptrequest(FIQ).
Theinterruptrequeststatusregister1(IRQ1)isshowninFigure8-8anddescribedinTable8-6.Interrupt
statusofINT[63:32](ifmappedtoIRQ).
Figure8-8.InterruptRequestStatusRegister1(IRQ1)
3116
Reserved
R-1
150
IRQ
R/W-1
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table8-6.InterruptRequestStatusRegister1(IRQ1)FieldDescriptions
BitFieldValueDescription
31-16Reserved1Reserved
15-0IRQ[n]InterruptstatusofINTn,ifmappedtofastinterruptrequest(IRQ47-32).
0Whenreadingbit,interruptoccurred.
1Whenwritingbit,acknowledgeinterrupt.
SPRUEP9A–May2008ARMInterruptController(AINTC)93
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