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5.89PortErrorRateCSRn(SPn_ERR_RATE)
SRIORegisters
Eachofthefourportsissupportedbyaregisterofthistype(seeTable172).SPn_ERR_RATEisshown
inFigure152anddescribedinTable173.
Table172.SPn_ERR_RATERegistersandtheAssociatedPorts
RegisterAddressOffsetAssociatedPort
SP0_ERR_RATE2068hPort0
SP1_ERR_RATE20A8hPort1
SP2_ERR_RATE20E8hPort2
SP3_ERR_RATE2128hPort3
Figure152.PortErrorRateCSRn(SPn_ERR_RATE)
312423181716
ERROR_RATE_
ERROR_RATE_BIASReserved
RECOVERY
R/W-FFhR-00hR/W-00
15870
PEAK_ERROR_RATEERROR_RATE_COUNTER
R/W-00hR/W-00h
LEGEND:R/W=Read/Write;R=Readonly;-n=Valueafterreset
Table173.PortErrorRateCSRn(SPn_ERR_RATE)FieldDescriptions
BitFieldValueDescription
31–24ERROR_RATE_BIASThesebitsprovidetheerrorratebiasvalue.
00hDonotdecrementtheerrorratecounter
01hDecrementevery1ms(nominal)
03hDecrementevery10ms(nominal)
07hDecrementevery100ms
0FhDecrementevery1s(nominal)
1FhDecrementevery10s(nominal)
3FhDecrementevery100s(nominal)
7FhDecrementevery1000s(nominal)
FFhDecrementevery10000s(nominal)
OtherReserved
23–18Reserved00hTheseread-onlybitsreturn0swhenread.
17–16ERROR_RATE_RECOVERYThesebitslimittheincrementingoftheerrorratecounterabovethe
failedthresholdtrigger.
00bOnlycount2errorsabove
01bOnlycount4errorsabove
10bOnlycount16errorsabove
11bDonotlimitincrementingtheerrorratecount
15–8PEAK_ERROR_RATE00h–FFhThisfieldcontainsthepeakvalueattainedbytheerrorratecounter.
7–0ERROR_RATE_COUNTER00h–FFhThesebitsmaintainacountofthenumberoftransmissionerrorsthat
haveoccurred.Ifthisvalueequalsthevaluecontainedintheerrorrate
thresholdtriggerregister,thenanerrorwillbereported.
SerialRapidIO(SRIO) 228SPRUE13A–September2006
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