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Texas Instruments TMS320DM643x manual Overview, Reset Pins, Device Configurations at Reset

Models: TMS320DM643x

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10.1 Overview

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Overview

10.1 Overview

There are different types of reset in the TMS320DM643x DMP. The types of reset differ by how they are initiated and/or by their effect on the chip. Each type is briefly described in Table 10-1. Refer to the device-specific data manual for more details on each of the reset types.

		Table 10-1. Reset Types
Type	Initiator	Effect
POR (Power-On-Reset)	POR pin low	Total reset of the chip (cold reset). Resets all
		modules including memory, emulation logic. The
		power-on reset (POR) pin must be driven low
		during power ramp of the device. Device boot and
		configuration pins are latched.
Warm Reset	RESET pin low	Resets all modules including memory, except
		emulation logic. Emulator stays alive during warm
		reset. Device boot and configuration pins are
		latched.

Max Reset

DSP emulator or Watchdog Timer (Timer 2).

Same effect as warm reset, except the device boot and configuration pins are not re-latched.

Module/Peripheral Local	DSP or external host software	Independently resets a specific module. Module
Reset		reset is intended as a debug tool, not necessarily
		as a tool to use in production.
DSP Local Reset	External host software	Resets the DSP CPU. DSP internal memories
		(L1P, L1D, and L2) are not reset.

10.2 Reset Pins

There are two device-level global reset pins on the DM6437 DMP: Power-On-Reset (POR) and warm reset (RESET). See device-specific data manual for more details on these reset pins.

10.3 Device Configurations at Reset

Upon POR and warm reset, the DM6437 DMP latches the values from the boot and configuration pins. Refer to device-specific data manual for the list of boot and configuration pins, and the device's default states.

92

Reset

SPRU978E–March 2008

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Image 92

Texas Instruments TMS320DM643x manual Overview, Reset Pins, Device Configurations at Reset, 1. Reset Types

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 TablesSubmit Documentation Feedback List of TablesSPRU978E-March Read This First PrefaceAbout This Manual Notational ConventionsTMS320C6000, C6000 are trademarks of Texas Instruments Read This FirstSPRU978E-March Submit Documentation FeedbackBlock Diagram IntroductionChapter Introduction1.1 Introduction 1.2 Block DiagramFigure 1-1. TMS320DM643x DMP Block Diagram 1.3 DSP Subsystem in TMS320DM643x DMP 1.3.1 Components of the DSP SubsystemSubmit Documentation Feedback IntroductionSPRU978E-March 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 IDMA2.4.1 Interrupt Controller INTC 2.4.2 Power-Down Controller PDC2.4 Internal Peripherals 2.4.3 Bandwidth Manager Submit Documentation Feedback TMS320C64x+ MegamoduleSPRU978E-March 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 InterfaceSubmit Documentation Feedback System MemorySPRU978E-March 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 InputTable 4-4. Example PLL2 Frequencies Core Voltage = 4.2.3 DDR2/EMIF ClockTable 4-3. 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 Events6.6.1.1 Module State Emulation Events 6.6.1.2 Local Reset Emulation Events6.6.2 Interrupt Registers 6.7 PSC Registers Table 6-5. Power and Sleep Controller PSC Registers6.6.3 Interrupt Handling 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 DescriptionsSubmit Documentation Feedback Power and Sleep ControllerSPRU978E-March Power Management DSP Sleep Mode Management3.3 V I/O Power Down Video DAC Power Down7.2 PSC and PLLC Overview Table 7-1. Power Management Features7.1 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 ON7.4.2.2 DSP Module Clock Off 7.5 3.3 V I/O Power Down7.6 Video DAC Power Down Submit Documentation Feedback Power ManagementSPRU978E-March Interrupt Controller Interrupt ControllerChapter Submit Documentation Feedback Interrupt ControllerSPRU978E-March 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 ControlTable 9-1. TMS320DM643x DMP Master IDs 9.6 Bandwidth Management9.6.1 Bus Master DMA Priority Control Table 9-2. TMS320DM643x DMP Default Master Priorities 9.6.2 EDMA Transfer Controller Configuration9.7 Boot Control Submit Documentation Feedback System ModuleSPRU978E-March 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 ChapterSubmit Documentation Feedback Boot ModesSPRU978E-March Revision History Appendix ATable A-1. Document Revision History SPRU978E-Marchpower.ti.com IMPORTANT NOTICEProducts Applications