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Texas Instruments TMS3320C5515 Figure 1-37. LDO Control Register (LDOCNTL) [7004h], Table 1-46. LDOCNTL Register Bit Descriptions Field Descriptions, Table 1-47. LDO Controls Matrix

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System Configuration and Control

Figure 1-37. LDO Control Register (LDOCNTL) [7004h]

15 8

Reserved

R-0

7 2 1 0

Reserved DSP_LDO_V USB_LDO_EN

R-0 R/W-0 R/W-0

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

Table 1-46. LDOCNTL Register Bit Descriptions Field Descriptions

Bit Field Value Description

15-2 Reserved 0 Reserved.Read-only, writes have no effect.

1 DSP_LDO_V DSP_LDOvoltage select bit.

0 DSP_LDOOis regulated to 1.3 V.

1 DSP_LDOOis regulated to 1.05 V.

0 USB_LDO_EN USB_LDOenable bit.

0 USB_LDOoutput is disabled. USB_LDOO pin is placed in high-impedance (Hi-Z) state.

1 USB_LDOoutput is enabled. USB_LDOO is regulated to 1.3 V.

Table 1-47. LDO Controls Matrix

RTCPMGTRegister LDOCNTLRegister

(0x1930) (0x7004) DSP_LDO_EN

BG_PDBit LDO_PD Bit USB_LDO_ENBit (PinD12) ANA_LDO DSP_LDO USB_LDO

1 Don'tCare Don'tCare Don'tCare OFF OFF OFF

Don'tCare 1 Don't Care Don't Care OFF OFF OFF

0 0 0 Low ON ON OFF

0 0 0 High ON OFF OFF

0 0 1 Low ON ON ON

65

SPRUFX5A–October 2010 –Revised November 2010 SystemControl

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Contents

Main Page Contents Page Page Page Page Page Preface Read This First About This Manual Notational Conventions Related Documentation From Texas Instruments Page Page Page Chapter 1 System Control 1.1 Introduction 1.1.1 BlockDiagram 1.1.2 CPU Core 1.1.3 FFT Hardware Accelerator 1.1.4 Power Management 1.1.5 Peripherals 1.2 System Memory 1.2.1 Program/DataMemory Map System Memory Figure 1-2. DSP Memory Map System Memory Table 1-2. DARAM Blocks (continued) Page 1.2.2 I/O Memory Map 1.3 Device Clocking 1.3.1 Overview Page Device Clocking www.ti.com Copyright 2010, Texas Instruments Incorporated Figure 1-3. DSP Clocking Diagram 22 SystemControl SPRUFX5AOctober 2010 Revised November 2010 SubmitDocumentation Feedback 1.3.2 Clock Domains 1.4 System Clock Generator 1.4.1 Overview ( ) 1.4.2 Functional Description Page 1.4.3 Configuration Page Page 1.4.4 Clock Generator Registers Page Page System Clock Generator Table 1-17. Clock Configuration Register 1 (CCR1) Field Descriptions Table 1-18. Clock Configuration Register 2 (CCR2) Field Descriptions 1.5 Power Management 1.5.1 Overview 1.5.2 Power Domains Table 1-20. DSP Power Domains 1.5.3 Clock Management Page Figure 1-12. Idle Configuration Register (ICR) [0001h] Table 1-21. Idle Configuration Register (ICR) Field Descriptions Page Page Table 1-24. Peripheral Clock Gating Configuration Register 1 (PCGCR1) Field Descriptions Table 1-24. Peripheral Clock Gating Configuration Register 1 (PCGCR1) Field Descriptions (continued) Table 1-25. Peripheral Clock Gating Configuration Register 2 (PCGCR2) Field Descriptions Page Page Page Page 1.5.4 Static Power Management Table 1-28. RTC Power Management Register (RTCPMGT) Field Descriptions Table 1-29. RTC Interrupt Flag Register (RTCINTFL) Field Descriptions Page Figure 1-21. RAM Sleep Mode Control Register2 [0x1C2A] Figure 1-22. RAM Sleep Mode Control Register3 [0x1C2B] Figure 1-23. RAM Sleep Mode Control Register4 [0x1C2C] Figure 1-24. RAM Sleep Mode Control Register5 [0x1C2D] 1.5.5 Power Configurations Table 1-31. Power Configurations Page Page 1.6 Interrupts Interrupts Table 1-32. Interrupt Table (continued) 1.6.1 IFR and IER Registers Table 1-33. IFR0 and IER0 Bit Descriptions 1.6.2 InterruptTiming 1.6.3 Timer Interrupt Aggregation Flag Register (TIAFR) [1C14h] 1.6.4 GPIO Interrupt Enable and Aggregation Flag Registers 1.6.5 DMA Interrupt Enable and Aggregation Flag Registers 1.7 System Configuration and Control 1.7.1 Overview 1.7.2 DeviceIdentification Page Page Page 1.7.3 Device Configuration Table 1-44. EBSR Register Bit Descriptions Field Descriptions Page Table 1-45. RTCPMGT Register Bit Descriptions Field Descriptions Figure 1-37. LDO Control Register (LDOCNTL) [7004h] Table 1-46. LDOCNTL Register Bit Descriptions Field Descriptions Table 1-47. LDO Controls Matrix Page Table 1-49. Pull-Down Inhibit Register 1 (PDINHIBR1) Field Descriptions Table 1-49. Pull-Down Inhibit Register 1 (PDINHIBR1) Field Descriptions (continued) Table 1-50. Pull-Down Inhibit Register 2 (PDINHIBR2) Field Descriptions Table 1-50. Pull-Down Inhibit Register 2 (PDINHIBR2) Field Descriptions (continued) Table 1-51. Pull-Down Inhibit Register 3 (PDINHIBR3) Field Descriptions 1.7.4 DMA Controller Configuration Page Page 1.7.5 Peripheral Reset Page Table 1-59. Peripheral Reset Control Register (PRCR) Field Descriptions (continued) 1.7.6 EMIF and USB Byte Access Table 1-60. Effect of BYTEMODE Bits on EMIF Accesses Table 1-62. EMIF System Control Register (ESCR) Field Descriptions 1.7.7 EMIF Clock Divider Register (ECDR) [1C26h] IMPORTANT NOTICE