Filter
Top Products
www.ti.com
SRIORegisters
Table149.PortControlCSRn(SPn_CTL)FieldDescriptions(continued)
BitFieldValueDescription
26–24PORT_WIDTH_OVERRIDEPortwidthoverride.Thisread-onlyfieldisavailableasasoftware
meanstooverridethehardwarewidth.
000bNooverride
001bReserved
010bForcesinglelane,lane0
011bForcesinglelane,lane2
100b–111bReserved
23PORT_DISABLEPortdisable
0Portreceivers/driversareenabled.
1Portreceivers/driversaredisabledandareunableto
receive/transmitanypacketsorcontrolsymbols.
22OUTPUT_PORT_ENABLEOutputportenable
0Theportisstoppedandnotenabledtoissueanypacketsexcept
torouteorrespondtoI/Ologicalmaintenancepackets,
dependinguponthefunctionalityoftheprocessingelement.
Controlsymbolsarenotaffectedandaresentnormally.
1Theportisenabledtoissueanypackets.
21INPUT_PORT_ENABLEInputportreceiveenable
0TheportisstoppedandonlyenabledtorouteorrespondI/O
logicalmaintenancepackets,dependinguponthefunctionalityof
theprocessingelement.Otherpacketsgenerate
packet-not-acceptedcontrolsymbolstoforceanerrorcondition
tobesignaledbythesendingdevice.Controlsymbolsarenot
affectedandarereceivedandhandlednormally.
1Portisenabledtorespondtoanypacket.
20ERROR_CHECK_DISABLEErrorcheckdisable
0RapidIOtransmissionerrorcheckingandrecoveryareenabled.
1RapiIOtransmissionerrorcheckingandrecoveryaredisabled.If
anerrorconditionoccurs,devicebehaviorisundefined.
19MULTICAST_PARTICIPANT0Multicast-eventparticipantenable.Thisread-onlybitis0to
indicatethatmulticast-eventcontrolsymbolscannotbeaccepted
bythisport.
18–4Reserved0Theseread-onlybitsreturn0swhenread.
3STOP_PORT_FLD_ENC_ENABLEStop-on-failenable
0EvenwhentheOutputFailed-encounteredbitisset,theport
continuestoattempttotransmitpacketstotheconnecteddevice.
1WhentheOutputFailed-encounteredbitisset,theportsetsthe
PortErrorbitinthePortnErrorandStatusCSRandstops
attemptingtosendpacketstotheconnecteddevice.Packetsare
discardediftheDropPacketEnablebitisset.
2DROP_PACKET_ENABLEDroppacketenable
0Theoutputportcontinuestotrytotransmitpacketsthathave
beenrejectedduetotransmissionerrors.
1Theoutputportdropspacketsthatareacknowledgedwitha
packet-not-acceptedcontrolsymbolwhentheerrorfailed
thresholdisexceeded.Iftheport"heals",andthecurrenterror
ratefallsbelowthefailedthreshold,theoutputnolongerdrops
packets.(switchdevicesonly)
1PORT_LOCKOUTPortlockout
0Theportisenabledtoissueanypackets.
1Theportisstoppedandisnotenabledtoissueorreceiveany
packets.Theinputportcanstillfollowthetrainingprocedureand
canstillsendandrespondtolink-requests.Allreceivedpackets
returnpacket-not-acceptedcontrolsymbolstoforceanerror
conditiontobesignaledbythesendingdevice.
SPRUE13A–September2006SerialRapidIO(SRIO)207
SubmitDocumentationFeedback