Texas Instruments SM320C6455-EP Personal Computer User Manual


 
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7.8.3.3PLLControllerStatusRegister
7.8.3.4PLLControllerClockAlignControlRegister
SM320C6455-EP
FIXED-POINTDIGITALSIGNALPROCESSOR
SPRS462BSEPTEMBER2007REVISEDJANUARY2008
ThePLLcontrollerstatusregister(PLLSTAT)showsthePLLcontrollerstatus.PLLSTATisshownin
Figure7-26anddescribedinTable7-35.
3116
Reserved
R-0
1510
ReservedGOSTAT
R-0R-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Figure7-26.PLLControllerStatusRegister(PLLSTAT)[HexAddress:029C013C]
Table7-35.PLLControllerStatusRegister(PLLSTAT)FieldDescriptions
BitFieldValueDescription
31:1Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
0GOSTATGOoperationstatus.
0Gooperationisnotinprogress.SYSCLKdivideratiosarenotbeingchanged.
1GOoperationisinprogress.SYSCLKdivideratiosarebeingchanged.
ThePLLcontrollerclockaligncontrolregister(ALNCTL)isshowninFigure7-27anddescribedin
Table7-36.
3116
Reserved
R-0
1510
ReservedALN1
R-0R/W-1
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Figure7-27.PLLControllerClockAlignControlRegister(ALNCTL)[HexAddress:029C0140]
Table7-36.PLLControllerClockAlignControlRegister(ALNCTL)FieldDescriptions
BitFieldValueDescription
31:1Reserved0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfieldhasnoeffect.
0ALN1SYSCLK1alignment.Donotchangethedefaultvaluesofthesefields.
0DonotalignSYSCLK1duringGOoperation.IfSYS1inDCHANGEissetto1,SYSCLK1switches
tothenewratioimmediatelyaftertheGOSETbitinPLLCMDisset.
1AlignSYSCLK1whentheGOSETbitinPLLCMDisset.TheSYSCLK1ratioissettotheratio
programmedintheRATIObitinPLLDIV1.
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