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Texas Instruments TMS320DM643x 18. SYSCLK Status Register SYSTAT, PLL Controller Registers

Models: TMS320DM643x

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5.4.16 SYSCLK Status Register (SYSTAT)

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PLL Controller Registers

5.4.16 SYSCLK Status Register (SYSTAT)

The SYSCLK status register (SYSTAT) is shown in Figure 5-18and described in Table 5-20. Indicates SYSCLK on/off status. Actual default is determined by actual clock on/off status, which depends on the D[n]EN bit in PLLDIV[n] default.

Figure 5-18. SYSCLK Status Register (SYSTAT)

31				16
	Reserved
	R-0
15	3	2	1	0
Reserved		SYS3ON	SYS2ON	SYS1ON
R-0		R-0 or 1(1)	R-1	R-1

LEGEND: R = Read only; -n= value after reset

(1)For PLLC1, SYS3ON defaults to 1; for PLLC2, SYS3ON is reserved and defaults to 0.

Table 5-20. SYSCLK Status Register (SYSTAT) Field Descriptions

Bit	Field	Value	Description
31-3	Reserved	0	Reserved
2	SYS3ON		SYSCLK3 on status. SYSCLK3 is controlled in the PLL controller divider 3 register (PLLDIV3). Not
			applicable on PLLC2 (this bit is reserved).
		0	SYSCLK3 is off.
		1	SYSCLK3 is on.
1	SYS2ON		SYSCLK2 on status. SYSCLK2 is controlled in the PLL controller divider 2 register (PLLDIV2).
		0	SYSCLK2 is off.
		1	SYSCLK2 is on.
0	SYS1ON		SYSCLK1 on status. SYSCLK1 is controlled in the PLL controller divider 1 register (PLLDIV1).
		0	SYSCLK1 is off.
		1	SYSCLK1 is on.

60	PLL Controller	SPRU978E–March 2008
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Image 60

Texas Instruments TMS320DM643x 18. SYSCLK Status Register SYSTAT, 20. SYSCLK Status Register SYSTAT Field Descriptions

Contents

Reference Guide TMS320DM643x DMP DSP SubsystemSPRU978E-March Submit Documentation FeedbackContents 6.7.3 Module Error Pending Register 1 MERRPR1 Reset Boot ModesList of Figures List of Tables List of TablesList of Tables SPRU978E-MarchSubmit Documentation Feedback Read This First PrefaceAbout This Manual Notational ConventionsTMS320C6000, C6000 are trademarks of Texas Instruments Read This FirstSPRU978E-March Submit Documentation FeedbackBlock Diagram IntroductionChapter Introduction1.2 Block Diagram Figure 1-1. TMS320DM643x DMP Block Diagram1.1 Introduction 1.3 DSP Subsystem in TMS320DM643x DMP 1.3.1 Components of the DSP SubsystemIntroduction SPRU978E-MarchSubmit Documentation Feedback TMS320C64x+ Megamodule TMS320C64x+ CPUMemory Controllers Internal Peripherals2.1 Introduction 2.2 TMS320C64x+ CPUFigure 2-1. TMS320C64x+ Megamodule Block Diagram 2.3 Memory Controllers 2.3.1 L1P ControllerFigure 2-2. C64x+ Cache Memory Architecture Memory Controllers2.3.2 L1D Controller 2.3.3 L2 Controller2.3.4 External Memory Controller EMC 2.3.5 Internal DMA IDMA2.4.2 Power-Down Controller PDC 2.4 Internal Peripherals2.4.1 Interrupt Controller INTC 2.4.3 Bandwidth Manager TMS320C64x+ Megamodule SPRU978E-MarchSubmit Documentation Feedback System Memory Memory MapMemory Interfaces Overview Chapter3.1 Memory Map 3.1.1 DSP Internal Memory L1P, L1D, L23.1.2 External Memory 3.1.3 Internal Peripherals3.2 Memory Interfaces Overview 3.2.1 DDR2 External Memory Interface3.2.2 External Memory Interface 3.2.2.1 Asynchronous EMIF InterfaceSystem Memory SPRU978E-MarchSubmit Documentation Feedback Device Clocking OverviewClock Domains Chapter4.1 Overview 4.2 Clock Domains4.2.1 Core Domains Table 4-1. System Clock Modes and Fixed Ratios for Core Clock DomainsFigure 4-1. Overall Clocking Diagram Clock Domains4.2.2 Core Frequency Flexibility Table 4-2. Example PLL1 Frequencies and Dividers 27 MHZ Clock Input4.2.3 DDR2/EMIF Clock Table 4-3. Example PLL2 Frequencies Core Voltage =Table 4-4. Example PLL2 Frequencies Core Voltage = 4.2.4 I/O Domains Table 4-5. Peripheral I/O Domain Clock4.2.5 Video Processing Back End Figure 4-2. VPBE/DAC ClockingClocking Mode Table 4-6. Possible Clocking ModesClock Domains VPSSCLKCTL.MUXSEL BitPLL Controller PLL ModulePLL1 Control PLL2 Control5.1 PLL Module 5.2 PLL1 Control5.2.1 Device Clock Generation 5.2.2 Steps for Changing PLL1/Core Domain FrequencyFigure 5-1. PLL1 Structure in the TMS320DM643x DMP Table 5-1. System PLLC1 Output Clocks5.2.2.1 Initialization to PLL Mode from PLL Power Down 5.2.2.2 Changing PLL Multiplier 5.2.2.3 Changing SYSCLK Dividers Example 5-1. Calculating Number of Clock Cycles N5.3 PLL2 Control 5.3.1 Device Clock GenerationFigure 5-2. PLL2 Structure in the TMS320DM643x DMP Table 5-2. DDR PLLC2 Output Clocks5.3.2.1 DDR2 Considerations When Modifying PLL2 Frequency 5.3.2 Steps for Changing PLL2 Frequency5.3.2.2 Initialization to PLL Mode from PLL Power Down 5.3.2.3 Changing PLL Multiplier 5.3.2.4 Changing SYSCLK Dividers Example 5-2. Calculating Number of Clock Cycles NTable 5-3. PLL and Reset Controller List Table 5-4. PLL and Reset Controller RegistersPLL and Reset Controller 5.4 PLL Controller Registers5.4.2 Reset Type Status Register RSTYPE Figure 5-4. Reset Type Status Register RSTYPETable 5-6. Reset Type Status Register RSTYPE Field Descriptions 5.4.1 Peripheral ID Register PID5.4.3 PLL Control Register PLLCTL Figure 5-5. PLL Control Register PLLCTLTable 5-7. PLL Control Register PLLCTL Field Descriptions PLL Controller Registers5.4.4 PLL Multiplier Control Register PLLM 5.4.5 PLL Controller Divider 1 Register PLLDIV1Figure 5-6. PLL Multiplier Control Register PLLM Table 5-8. PLL Multiplier Control Register PLLM Field Descriptions5.4.6 PLL Controller Divider 2 Register PLLDIV2 5.4.7 PLL Controller Divider 3 Register PLLDIV3Figure 5-8. PLL Controller Divider 2 Register PLLDIV2 Figure 5-9. PLL Controller Divider 3 Register PLLDIV35.4.8 Oscillator Divider 1 Register OSCDIV1 Figure 5-10. Oscillator Divider 1 Register OSCDIV1Table 5-12. Oscillator Divider 1 Register OSCDIV1 Field Descriptions PLL Controller Registers5.4.9 Bypass Divider Register BPDIV Figure 5-11. Bypass Divider Register BPDIVTable 5-13. Bypass Divider Register BPDIV Field Descriptions PLL Controller Registers5.4.10 PLL Controller Command Register PLLCMD Figure 5-12. PLL Controller Command Register PLLCMDTable 5-14. PLL Controller Command Register PLLCMD Field Descriptions 5.4.11 PLL Controller Status Register PLLSTAT5.4.12 PLL Controller Clock Align Control Register ALNCTL Figure 5-14. PLL Controller Clock Align Control Register ALNCTLPLL Controller Registers Field5.4.13 PLLDIV Ratio Change Status Register DCHANGE Figure 5-15. PLLDIV Ratio Change Status Register DCHANGEPLL Controller Registers Field5.4.14 Clock Enable Control Register CKEN Figure 5-16. Clock Enable Control Register CKENTable 5-18. Clock Enable Control Register CKEN Field Descriptions PLL Controller Registers5.4.15 Clock Status Register CKSTAT Figure 5-17. Clock Status Register CKSTATTable 5-19. Clock Status Register CKSTAT Field Descriptions PLL Controller Registers5.4.16 SYSCLK Status Register SYSTAT Figure 5-18. SYSCLK Status Register SYSTATTable 5-20. SYSCLK Status Register SYSTAT Field Descriptions PLL Controller RegistersPower and Sleep Controller Power Domain and Module TopologyPower Domain and Module States Executing State TransitionsFigure 6-1. Power and Sleep Controller PSC Integration 6.1 Introduction6.2 Power Domain and Module Topology Table 6-1. DM643x DMP Default Module Configuration6.3 Power Domain and Module States 6.3.1 Power Domain States6.3.2 Module States Table 6-2. Module States6.3.3 Local Reset 6.4.1 Power Domain State Transitions6.4 Executing State Transitions 6.4.2 Module State TransitionsTable 6-3. IcePick Emulation Commands 6.5 IcePick Emulation Support in the PSC6.6 PSC Interrupts 6.6.1 Interrupt Events6.6.1.2 Local Reset Emulation Events 6.6.2 Interrupt Registers6.6.1.1 Module State Emulation Events Table 6-5. Power and Sleep Controller PSC Registers 6.6.3 Interrupt Handling6.7 PSC Registers 6.7.1 Peripheral Revision and Class Information Register PID 6.7.2 Interrupt Evaluation Register INTEVALFigure 6-2. Peripheral Revision and Class Information Register PID Figure 6-3. Interrupt Evaluation Register INTEVAL6.7.3 Module Error Pending Register 1 MERRPR1 6.7.4 Module Error Clear Register 1 MERRCR1Figure 6-4. Module Error Pending Register 1 MERRPR1 Table 6-8. Module Error Pending Register 1 MERRPR1 Field Descriptions6.7.5 Power Domain Transition Command Register PTCMD 6.7.6 Power Domain Transition Status Register PTSTATFigure 6-6. Power Domain Transition Command Register PTCMD Figure 6-7. Power Domain Transition Status Register PTSTAT6.7.7 Power Domain Status 0 Register PDSTAT0 Figure 6-8. Power Domain Status 0 Register PDSTAT0Table 6-12. Power Domain Status 0 Register PDSTAT0 Field Descriptions Power and Sleep Controller6.7.8 Power Domain Control 0 Register PDCTL0 Figure 6-9. Power Domain Control 0 Register PDCTL0Table 6-13. Power Domain Control 0 Register PDCTL0 Field Descriptions Power and Sleep ControllerPower and Sleep Controller 6.7.9 Module Status n Register MDSTATnFigure 6-10. Module Status n Register MDSTATn Table 6-14. Module Status n Register MDSTATn Field DescriptionsPower and Sleep Controller 6.7.10 Module Control n Register MDCTLnFigure 6-11. Module Control n Register MDCTLn Table 6-15. Module Control n Register MDCTLn Field DescriptionsPower and Sleep Controller SPRU978E-MarchSubmit Documentation Feedback Power Management DSP Sleep Mode Management3.3 V I/O Power Down Video DAC Power DownTable 7-1. Power Management Features 7.1 Overview7.2 PSC and PLLC Overview 7.3.3 PLL Bypass and Power Down 7.3 Clock Management7.3.1 Module Clock ON/OFF 7.3.2 Module Clock Frequency Scaling7.4 DSP Sleep Mode Management 7.4.1 DSP Sleep Modes7.4.2 DSP Module Clock ON/OFF 7.4.2.1 DSP Module Clock ON7.5 3.3 V I/O Power Down 7.6 Video DAC Power Down7.4.2.2 DSP Module Clock Off Power Management SPRU978E-MarchSubmit Documentation Feedback Interrupt Controller ChapterInterrupt Controller Interrupt Controller SPRU978E-MarchSubmit Documentation Feedback Device Configuration 3.3 V I/O Power-Down ControlBoot Control System Module9.3 Device Configuration 9.3.2 Device Boot Configuration Status9.1 Overview 9.2 Device Identification9.4 3.3 V I/O Power-Down Control 9.5.1 Timer Control9.5 Peripheral Status and Control 9.5.2 VPSS Clock and DAC Control9.6 Bandwidth Management 9.6.1 Bus Master DMA Priority ControlTable 9-1. TMS320DM643x DMP Master IDs 9.6.2 EDMA Transfer Controller Configuration 9.7 Boot ControlTable 9-2. TMS320DM643x DMP Default Master Priorities System Module SPRU978E-MarchSubmit Documentation Feedback Reset Reset PinsDevice Configurations at Reset DSP Reset10.2 Reset Pins 10.3 Device Configurations at ResetTable 10-1. Reset Types 10.1 Overview10.4 DSP Reset 10.4.1 DSP Local Reset10.4.2 DSP Module Reset 10.4.2.1 Software Reset Disable SwRstDisable10.4.2.2 Synchronous Reset SyncReset Boot Modes ChapterBoot Modes SPRU978E-MarchSubmit Documentation Feedback Revision History Appendix ATable A-1. Document Revision History SPRU978E-Marchpower.ti.com IMPORTANT NOTICEProducts Applications