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5.4Power-DownControl
5.5MegamoduleResets
TMS320C6454
Fixed-PointDigitalSignalProcessor
SPRS311A–APRIL2006–REVISEDDECEMBER2006
TheC64x+Megamodulesupportstheabilitytopower-downvariouspartsoftheC64x+Megamodule.The
power-downcontroller(PDC)oftheC64x+MegamodulecanbeusedtopowerdownL1P,thecache
controlhardware,theCPU,andtheentireC64x+Megamodule.Thesepower-downfeaturescanbeused
todesignsystemsforloweroverallsystempowerrequirements.
NOTE
TheC6454doesnotsupportpower-downmodesfortheL2memoryatthistime.
Moreinformationonthepower-downfeaturesoftheC64x+Megamodulecanbefoundinthe
TMS320C64x+MegamoduleReferenceGuide(literaturenumberSPRU871).
Table5-2showstheresettypessupportedontheC6454deviceandtheyaffecttheresettingofthe
Megamodule,eitherbothgloballyorjustlocally.
Table5-2.MegamoduleReset(GlobalorLocal)
GLOBALLOCAL
RESETTYPEMEGAMODULEMEGAMODULE
RESETRESET
Power-OnResetYY
WarmResetYY
SystemResetYY
CPUResetNY
FormoredetailedinformationontheglobalandlocalMegamoduleresets,seetheTMS320C64x+
MegamoduleReferenceGuide(literaturenumberSPRU871).Andformoredetailedinformationondevice
resets,seeSection7.6,ResetController.
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