Texas Instruments TMS320DM646x Computer Hardware User Manual


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PLLControllerRegisterMap
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Table5-16.PLLDIVRatioChangeStatusRegister(DCHANGE)FieldDescriptions(continued)
BitFieldValueDescription
3SYS4SYSCLK4divideratioismodified.SYSCLK4divideratioischangedduringGOoperation.ForPLL1
only,notsupportedforPLL2.
0Ratiohasnotbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK4isnotaffected.
1Ratiohasbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK4changestothenewdivideratio.
2SYS3SYSCLK3divideratioismodified.SYSCLK3divideratioischangedduringGOoperation.ForPLL1
only,notsupportedforPLL2.
0Ratiohasnotbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK3isnotaffected.
1Ratiohasbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK3changestothenewdivideratio.
1SYS2SYSCLK2divideratioismodified.SYSCLK2divideratioischangedduringGOoperation.ForPLL1
only,notsupportedforPLL2.
0Ratiohasnotbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK2isnotaffected.
1Ratiohasbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK2changestothenewdivideratio.
0SYS1SYSCLK1divideratioismodified.SYSCLK1divideratioischangedduringGOoperation.
0Ratiohasnotbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK1isnotaffected.
1Ratiohasbeenmodified.WhentheGOSETbitinthePLLcontrollercommandregister(PLLCMD)is
set,SYSCLK1changestothenewdivideratio.
PLLController 56SPRUEP9A–May2008
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