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2.7TerminalFunctions
SM320C6455-EP
FIXED-POINTDIGITALSIGNALPROCESSOR
SPRS462B–SEPTEMBER2007–REVISEDJANUARY2008
Theterminalfunctionstable(Table2-3)identifiestheexternalsignalnames,theassociatedpin(ball)
numbersalongwiththemechanicalpackagedesignator,thepintype(I,O/Z,orI/O/Z),whetherthepin
hasanyinternalpullup/pulldownresistors,andafunctionalpindescription.Formoredetailedinformation
ondeviceconfiguration,peripheralselection,multiplexed/sharedpins,andpullup/pulldownresistors,see
Section3,DeviceConfiguration.
Table2-3.TerminalFunctions
SIGNAL
TYPE
(1)
IPD/IPU
(2)
DESCRIPTION
NAMENO.
CLOCK/PLLCONFIGURATIONS
CLKIN1N28IIPDClockInputforPLL1.
CLKIN2G3IIPDClockInputforPLL2.
PLLV1T29A1.8-VI/OsupplyvoltageforPLL1
PLLV2A5A1.8-VI/OsupplyvoltageforPLL2
SYSCLK4istheclockoutputat1/8ofthedevicespeed(O/Z)orthispincanbe
SYSCLK4/GP[1]
(3)
AJ13I/O/ZIPD
programmedastheGP1pin(I/O/Z)[default].
JTAGEMULATION
TMSAJ10IIPUJTAGtest-portmodeselect
TDOAH8O/ZIPUJTAGtest-portdataout
TDIAH9IIPUJTAGtest-portdatain
TCKAJ9IIPUJTAGtest-portclock
JTAGtest-portreset.ForIEEE1149.1JTAGcompatibility,seetheIEEE
TRSTAH7IIPD
1149.1JTAGcompatibilitystatementportionofthisdocument.
EMU0
(4)
AF7I/O/ZIPUEmulationpin0
EMU1
(4)
AE11I/O/ZIPUEmulationpin1
EMU2AG9I/O/ZIPUEmulationpin2
EMU3AF10I/O/ZIPUEmulationpin3
EMU4AF9I/O/ZIPUEmulationpin4
EMU5AE12I/O/ZIPUEmulationpin5
EMU6AG8I/O/ZIPUEmulationpin6
EMU7AF12I/O/ZIPUEmulationpin7
EMU8AF11I/O/ZIPUEmulationpin8
EMU9AH13I/O/ZIPUEmulationpin9
EMU10AD10I/O/ZIPUEmulationpin10
EMU11AD12I/O/ZIPUEmulationpin11
EMU12AE10I/O/ZIPUEmulationpin12
EMU13AD8I/O/ZIPUEmulationpin13
EMU14AF13I/O/ZIPUEmulationpin14
EMU15AE9I/O/ZIPUEmulationpin15
EMU16AH12I/O/ZIPUEmulationpin16
EMU17AH10I/O/ZIPUEmulationpin17
EMU18AE13I/O/ZIPUEmulationpin18
(1)I=Input,O=Output,Z=Highimpedance,S=Supplyvoltage,GND=Ground,A=Analogsignal
(2)IPD=Internalpulldown,IPU=Internalpullup.Formostsystems,a1-kΩresistorcanbeusedtoopposetheIPU/IPD.Formoredetailed
informationonpullup/pulldownresistorsandsituationswhereexternalpullup/pulldownresistorsarerequired,seeSection3.7,
Pullup/PulldownResistors.
(3)Thesepinsaremultiplexedpins.Formoredetails,seeSection3,DeviceConfiguration.
(4)TheC6455DSPdoesnotrequireexternalpulldownresistorsontheEMU0andEMU1pinsfornormalorboundary-scanoperation.
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