www.德州仪器.com
ADVance informaTION
interruptpriority
TMS470R1A64
16/32-bitriscflashmicrocontroller
SPNS099–NOVEMBER2004
thecentralinterruptmanager(cim)portionofthesysmodulemanagestheinterruptrequestsfromthedevice
modules(i.e.,spi1orspi2,sci1orsci2,andrti,等.).
althoughthecimcanacceptupto32interruptrequestsignals,thea64deviceonlyuses21ofthoseinterrupt
requestsignals.therequestchannelsaremaskablesothatindividualchannelscanbeselectivelydisabled.所有
interruptrequestscanbeprogrammedinthecimtobeofeithertype:
•
fastinterruptrequest(fiq)
•
normalinterruptrequest(irq)
theprecedencesofrequestchannelsdecreasewithascendingchannelorderinthecim(0,最高的,and31,
最低,priority).forthesechannelprioritiesandtheassociatedmodules,seetable6.
table6.interruptpriority
modulesinterruptsourcesinterruptlevel/频道
spi1spi1end-转移/overrun0
RTICOMP2interrupt1
RTICOMP1interrupt2
RTITAPinterrupt3
spi2spi2end-转移/overrun4
GIOInterruptA5
Reserved6
HETInterruptA7
Reserved8
sci1/sci2sci1/sci2errorinterrupt9
SCI1SCI1receiveinterrupt10
C2SIaC2SIainterrupt11
Reserved12
Reserved13
SCCInterruptA14
Reserved15
MibADCEndeventconversion16
SCI2SCI2receiveinterrupt17
Reserved18
Reserved19
SCI1SCI1transmitinterrupt20
systemswinterrupt(ssi)21
Reserved22
HETInterruptB23
Reserved24
SCCInterruptB25
SCI2SCI2transmitinterrupt26
MibADCEndGroup1conversion27
Reserved28
GIOInterruptB29
MibADCEndGroup2conversion30
Reserved31
14
: 点此下载
