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SM320C6455-EP
FIXED-POINTDIGITALSIGNALPROCESSOR
SPRS462B–SEPTEMBER2007–REVISEDJANUARY2008
Table2-3.TerminalFunctions(continued)
SIGNAL
TYPE
(1)
IPD/IPU
(2)
DESCRIPTION
NAMENO.
SUPPLYVOLTAGEMONITORPINS
Die-side1.2-Vcoresupply(CV
DD
)voltagemonitorpin.Themonitorpins
indicatethevoltageonthedieand,therefore,providethebestprobepointfor
voltagemonitoringpurposes.Formoreinformationregardingtheuseofthis
CV
DDMON
N1andothervoltagemonitoringpins,seetheTMS320C6455DesignGuideand
ComparisonstoTMS320TC6416Tapplicationreport(literaturenumber
SPRAA89).IftheCV
DDMON
pinisnotused,itshouldbeconnecteddirectlyto
the1.2-Vcoresupply(CV
DD
).
Die-side3.3-VI/Osupply(DV
DD33
)voltagemonitorpin.Themonitorpins
indicatethevoltageonthedieand,therefore,providethebestprobepointfor
voltagemonitoringpurposes.Formoreinformationregardingtheuseofthis
DV
DD33MON
L6andothervoltagemonitoringpins,seetheTMS320C6455DesignGuideand
ComparisonstoTMS320TC6416Tapplicationreport(literaturenumber
SPRAA89).IftheDV
DD33MON
pinisnotused,itshouldbeconnecteddirectlyto
the3.3-VI/Osupply(DV
DD33
).
Die-side1.5-/1.8-VI/Osupply(DV
DD15
)voltagemonitorpin.Themonitorpins
indicatethevoltageonthedieand,therefore,providethebestprobepointfor
voltagemonitoringpurposes.Formoreinformationregardingtheuseofthis
andothervoltagemonitoringpins,seetheTMS320C6455DesignGuideand
ComparisonstoTMS320TC6416Tapplicationreport(literaturenumber
SPRAA89).IftheDV
DD15MON
pinisnotused,itshouldbeconnecteddirectlyto
DV
DD15MON
F3I
the1.5-/1.8-VI/Osupply(DV
DD15
).
NOTE:IftheRGMIImodeoftheEMACisnotused,theDV
DD15
,DV
DD15MON
,
V
REFHSTL
,RSV13,andRSV14pinscanbeconnecteddirectlytoground(V
SS
)
tosavepower.However,connectingthesepinsdirectlytogroundprevents
boundary-scanfromfunctioningontheRGMIIpinsoftheEMAC.Topreserve
boundary-scanfunctionalityontheRGMIIpins,seeSection7.3.4.
Die-side1.8-VI/Osupply(DV
DD18
)voltagemonitorpin.Themonitorpins
indicatethevoltageonthedieand,therefore,providethebestprobepointfor
voltagemonitoringpurposes.Formoreinformationregardingtheuseofthis
DV
DD18MON
A26andothervoltagemonitoringpins,seetheTMS320C6455DesignGuideand
ComparisonstoTMS320TC6416Tapplicationreport(literaturenumber
SPRAA89).IftheDV
DD18MON
pinisnotused,itshouldbeconnecteddirectlyto
the1.8-VI/Osupply(DV
DD18
).
SUPPLYVOLTAGEPINS
(DV
DD18
/2)-VreferenceforSSTLbuffer(DDR2MemoryController).Thisinput
voltagecanbegenerateddirectlyfromDV
DD18
usingtwo1-kΩresistorstoform
aresistordividercircuit.
NOTE:TheDDR2MemoryControllerisnotused,theV
REFSSTL
,RSV11,and
V
REFSSTL
C14ARSV12pinscanbeconnecteddirectlytoground(V
SS
)tosavepower.
However,connectingthesepinsdirectlytogroundpreventsboundary-scan
fromfunctioningontheDDR2MemoryControllerpins.Topreserve
boundary-scanfunctionalityontheDDR2MemoryControllerpins,see
Section7.3.4.
(DV
DD15
/2)-VreferenceforHSTLbuffer(EMACRGMII).V
REFHSTL
canbe
generateddirectlyfromDV
DD15
usingtwo1-kΩresistorstoformaresistor
dividercircuit.
NOTE:IftheRGMIImodeoftheEMACisnotused,theDV
DD15
,V
REFHSTL
,
V
REFHSTL
B2A
RSV13,andRSV14pinscanbeconnectedtodirectlyground(V
SS
)tosave
power.However,connectingthesepinsdirectlytogroundprevents
boundary-scanfromfunctioningontheRGMIIpinsoftheEMAC.Topreserve
boundary-scanfunctionalityontheRGMIIpins,seeSection7.3.4.
1.8-VI/Osupplyvoltage(SRIOregulatorsupply).
DV
DDR
AD20S
NOTE:IfRapidI/Oisnotused,thispincanbeconnecteddirectlytoV
SS
.
AC15SRIOanalogsupply:
1.25-VI/Osupplyvoltage(-1000and-1200devices)
AC17
AV
DDA
A1.2-VI/Osupplyvoltage(-850and-720devices).
Donotusecoresupply.
AD16
NOTE:IfRapidI/Oisnotused,thesepinscanbeconnecteddirectlytoV
SS
.
AV
DLL1
A13
A1.8-VI/Osupplyvoltage.
AV
DLL2
E18
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