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5.22LSUInterruptConditionStatusRegister(LSU_ICSR)
SRIORegisters
Eachofthestatusbitsinthisregisterindicatestheoccurrenceofaparticulartypeoftransactioninterrupt
conditionforaparticularLSU.LSU_ICSRisshowninFigure83anddescribedinTable73.Foradditional
programminginformation,seeSection4.3.3.
Figure83.LSUInterruptConditionStatusRegister(LSU_ICSR)-AddressOffset0260h
<---------------------------------BitsforLSU4---------------------------------><---------------------------------BitsforLSU3--------------------------------->
31302928272625242322212019181716
ICS31ICS30ICS29ICS28ICS27ICS26ICS25ICS24ICS23ICS22ICS21ICS20ICS19ICS18ICS17ICS16
R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0
<---------------------------------BitsforLSU2---------------------------------><---------------------------------BitsforLSU1--------------------------------->
1514131211109876543210
ICS15ICS14ICS13ICS12ICS11ICS10ICS9ICS8ICS7ICS6ICS5ICS4ICS3ICS2ICS1ICS0
R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0
LEGEND:R=Readonly;-n=Valueafterreset
Table73.LSUInterruptConditionStatusRegister(LSU_ICSR)FieldDescriptions
BitFieldValueDescription
31ICS310LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.Packetnotsentduetounavailableoutboundcreditatgiven
priority.
30ICS300LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.RetryDoorbellresponsereceivedorAtomictest-and-swapwas
notallowed(semaphoreinuse).
29ICS290LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.TransactionwasnotsentduetoDMAdatatransfererror.
28ICS280LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.Transactiontimeoutoccurred.
27ICS270LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.Transactionwasnotsentduetounsupportedtransactiontypeor
invalidfieldencoding.
26ICS260LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.TransactionwasnotsentduetoXoffcondition.
25ICS250LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.Non-postedtransactionreceivedERRORresponse,orerrorin
responsepayload.
24ICS240LSU4interruptconditionnotdetected.
1LSU4interruptconditiondetected.Transactioncomplete,Noerrors(posted/non-posted).Enablefor
thisinterruptisultimatelycontrolledbytheInterruptReqbitofLSU4_REG4.Thisallows
enabling/disablingonaperrequestbasis.ForoptimumLSUperformance,interruptpacingshould
notbeusedontheLSUinterrupts.
23ICS230LSU3interruptconditionnotdetected.
1LSU3interruptconditiondetected.Packetnotsentduetounavailableoutboundcreditatgiven
priority.
22ICS220LSU3interruptconditionnotdetected.
1LSU3interruptconditiondetected.RetryDoorbellresponsereceivedorAtomictest-and-swapwas
notallowed(semaphoreinuse).
21ICS210LSU3interruptconditionnotdetected.
1LSU3interruptconditiondetected.TransactionwasnotsentduetoDMAdatatransfererror.
20ICS200LSU3interruptconditionnotdetected.
1LSU3interruptconditiondetected.Transactiontimeoutoccurred.
138SerialRapidIO(SRIO)SPRUE13A–September2006
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