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3.7PowerandSleepController(PSC)
arm_clock
arm_mreset
arm_power
AINTC
ARM
module_power
module_mreset
MODx
module_clock
Alwayson
domain
Interrupt
PSC
clks
PLLC
Emulation
RESETN
VDD
DMSoC
3.8SystemControlModule
TMS320DM355
DigitalMediaSystem-on-Chip(DMSoC)
SPRS463A–SEPTEMBER2007–REVISEDSEPTEMBER2007
IntheDM355system,thePowerandSleepController(PSC)isresponsibleformanagingtransitionsof
systempoweron/off,clockon/off,andreset.AblockdiagramofthePSCisshowninFigure3-5.Manyof
theoperationsofthePSCaretransparenttosoftware,suchaspower-on-resetoperations.However,the
PSCprovidesyouwithaninterfacetocontrolseveralimportantclockandresetoperations.
ThePSCincludesthefollowingfeatures:
•Manageschippower-on/off,clockon/off,andresets
•Providesasoftwareinterfaceto:
–ControlmoduleclockON/OFF
–Controlmoduleresets
•SupportsIcePickemulationfeatures:power,clock,andreset
FormoreinformationonthePSC,seetheARMSubsystemUser'sGuide.
Figure3-5.DM355PowerandSleepController(PSC)
TheDM355’ssystemcontrolmoduleisasystem-levelmodulecontainingstatusandtop-levelcontrollogic
requiredbythedevice.Thesystemcontrolmoduleconsistsofamiscellaneoussetofstatusandcontrol
registers,accessiblebytheARMandsupportingallofthefollowingsystemfeaturesandoperations:
•Deviceidentification
•Deviceconfiguration
–Pinmultiplexingcontrol
–Devicebootconfigurationstatus
•ARMinterruptandEDMAeventmultiplexingcontrol
•Specialperipheralstatusandcontrol
–Timer64+
–USBPHYcontrol
–VPSSclockandvideoDACcontrolandstatus
–DDRVTPcontrol
–Clockoutcircuitry
–GIOde-bouncecontrol
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