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5.91PortIPDiscoveryTimerfor4xModeRegister(SP_IP_DISCOVERY_TIMER)
SRIORegisters
TheportIPdiscoverytimerfor4xmoderegister(SP_IP_DISCOVERY_TIMER)isshowninFigure154
anddescribedinTable176.
Figure154.PortIPDiscoveryTimerfor4xModeRegister(SP_IP_DISCOVERY_TIMER)-Address
Offset12000h
3128272423201916
DISCOVERY_TIMERReservedPW_TIMERReserved
R/W-9hR-0hR/W-8hR-0h
150
Reserved
R-0000h
LEGEND:R/W=Read/Write;R=Readonly;-n=Valueafterreset
Table176.PortIPDiscoveryTimerfor4xModeRegister(SP_IP_DISCOVERY_TIMER)Field
Descriptions
BitFieldValueDescription
31–28DISCOVERY_TIMERDiscoverytimerfor4xmode.Thediscoverytimerallowstimeforthelinkpartner
toenteritsDISCOVERYstateandifthelinkpartnerissupporting4xmode,for
all4lanestobealigned.
0000bReserved
0001b0.84ms
0010b0.84msx2=1.68ms
......
1001b0.84msx9=7.56ms(default)
......
1111b0.84msx15=12.6ms
27–24Reserved0000bTheseread-onlybitsreturn0swhenread.
23–20PW_TIMERPort-writetimer.Thetimerdefinesaperiodtorepeatsendinganerrorreporting
port-writerequestforsoftwareassistance.Thetimerisstoppedbysoftware
writingtotheerrordetectregisters.
0000bDisabled.Port-writeissentonceonly.
0001b107ms–214ms
0010b214ms–321ms
0100b428ms–535ms
1000b856ms–963ms(default)
OtherReserved
19–0Reserved0000hTheseread-onlybitsreturn0swhenread.
SerialRapidIO(SRIO) 230SPRUE13A–September2006
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