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InterruptConditions
Figure52.LSUInterruptConditionStatusandClearRegisters
LSUInterruptConditionStatusRegister(LSU_ICSR)(AddressOffset0260h)
31302928272625242322212019181716
ICS31ICS30ICS29ICS28ICS27ICS26ICS25ICS24ICS23ICS22ICS21ICS20ICS19ICS18ICS17ICS16
R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0
1514131211109876543210
ICS15ICS14ICS13ICS12ICS11ICS10ICS9ICS8ICS7ICS6ICS5ICS4ICS3ICS2ICS1ICS0
R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0R-0
LSUInterruptConditionClearRegister(LSU_ICCR)(AddressOffset0268h)
31302928272625242322212019181716
ICC31ICC30ICC29ICC28ICC27ICC26ICC25ICC24ICC23ICC22ICC21ICC20ICC19ICC18ICC17ICC16
W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0
1514131211109876543210
ICC15ICC14ICC13ICC12ICC11ICC10ICC9ICC8ICC7ICC6ICC5ICC4ICC3ICC2ICC1ICC0
W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0W-0
LEGEND:R=Readonly;W=Writeonly;-n=Valueafterreset
Table36.InterruptConditionsShowninLSU_ICSRandClearedWithLSU_ICCR
BitAssociatedLSUInterruptCondition
31LSU4Packetnotsentduetounavailableoutboundcreditatgivenpriority
30LSU4RetryDoorbellresponsereceivedorAtomictest-and-swapwasnotallowed(semaphorein
use)
29LSU4TransactionwasnotsentduetoDMAdatatransfererror
28LSU4Transactiontimeoutoccurred
27LSU4Transactionwasnotsentduetounsupportedtransactiontypeorinvalidfieldencoding
26LSU4TransactionwasnotsentduetoXoffcondition
25LSU4Non-postedtransactionreceivedERRORresponse,orerrorinresponsepayload
24LSU4Transactioncomplete,Noerrors(posted/non-posted)
(1)
23LSU3Packetnotsentduetounavailableoutboundcreditatgivenpriority
22LSU3RetryDoorbellresponsereceivedorAtomictest-and-swapwasnotallowed(semaphorein
use)
21LSU3TransactionwasnotsentduetoDMAdatatransfererror
20LSU3Transactiontimeoutoccurred
19LSU3Transactionwasnotsentduetounsupportedtransactiontypeorinvalidfieldencoding
18LSU3TransactionwasnotsentduetoXoffcondition
17LSU3Non-postedtransactionreceivedERRORresponse,orerrorinresponsepayload
16LSU3Transactioncomplete,Noerrors(posted/non-posted)
(1)
15LSU2Packetnotsentduetounavailableoutboundcreditatgivenpriority
14LSU2RetryDoorbellresponsereceivedorAtomictest-and-swapwasnotallowed(semaphorein
use)
13LSU2TransactionwasnotsentduetoDMAdatatransfererror
12LSU2Transactiontimeoutoccurred
11LSU2Transactionwasnotsentduetounsupportedtransactiontypeorinvalidfieldencoding
10LSU2TransactionwasnotsentduetoXoffcondition
9LSU2Non-postedtransactionreceivedERRORresponse,orerrorinresponsepayload
8LSU2Transactioncomplete,Noerrors(posted/non-posted)
(1)
7LSU1Packetnotsentduetounavailableoutboundcreditatgivenpriority
(1)
EnableforthisinterruptisultimatelycontrolledbytheInterruptReqregisterbitofLSUn_REG4.Thisallowsenabling/disabling
onaperrequestbasis.ForoptimumLSUperformance,interruptpacingshouldnotbeusedontheLSUinterrupts.Section4.7
describesinterruptpacing.
90SerialRapidIO(SRIO)SPRUE13A–September2006
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