Texas instruments STELLARIS LM3S1110 DATA SHEET

TEXAS INSTRUMENTS-PRODUCTION DATA

Stellaris® LM3S1110 Microcontroller

DATA SHEET

DS-LM3S1110-7787

Copyright © 2007-2010 Texas Instruments

 

Incorporated

Copyright

Copyright © 2007-2010 Texas Instruments Incorporated All rights reserved. Stellaris and StellarisWare are registered trademarks of Texas Instruments Incorporated. ARM and Thumb are registered trademarks and Cortex is a trademark of ARM Limited. Other names and brands may be claimed as the property of others.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

Pleasebe awarethatan importantnoticeconcerningavailability, standardwarranty, and use in criticalapplicationsof TexasInstrumentssemiconductor products and disclaimers thereto appears at the end of this data sheet.

Texas Instruments Incorporated

108 Wild Basin, Suite 350 Austin, TX 78746

http://www.ti.com/stellaris http://www-k.ext.ti.com/sc/technical-support/product-information-centers.htm

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Stellaris® LM3S1110 Microcontroller

Table of Contents

 

Revision History .............................................................................................................................

19

About This Document ....................................................................................................................

23

Audience ..............................................................................................................................................

 

23

About This Manual ................................................................................................................................

23

Related Documents ...............................................................................................................................

23

Documentation Conventions ..................................................................................................................

24

1

Architectural Overview ..........................................................................................

26

1.1

Product Features ..........................................................................................................

26

1.2

Target Applications ........................................................................................................

32

1.3

High-Level Block Diagram .............................................................................................

32

1.4

Functional Overview ......................................................................................................

34

1.4.1

ARM Cortex™-M3 .........................................................................................................

34

1.4.2

Motor Control Peripherals ..............................................................................................

35

1.4.3

Analog Peripherals ........................................................................................................

35

1.4.4

Serial Communications Peripherals ................................................................................

35

1.4.5

System Peripherals .......................................................................................................

36

1.4.6

Memory Peripherals ......................................................................................................

37

1.4.7

Additional Features .......................................................................................................

37

1.4.8

Hardware Details ..........................................................................................................

38

2

The Cortex-M3 Processor ......................................................................................

39

2.1

Block Diagram ..............................................................................................................

40

2.2

Overview ......................................................................................................................

41

2.2.1

System-Level Interface ..................................................................................................

41

2.2.2

Integrated Configurable Debug ......................................................................................

41

2.2.3

Trace Port Interface Unit (TPIU) .....................................................................................

42

2.2.4

Cortex-M3 System Component Details ...........................................................................

42

2.3

Programming Model ......................................................................................................

43

2.3.1

Processor Mode and Privilege Levels for Software Execution ...........................................

43

2.3.2

Stacks ..........................................................................................................................

43

2.3.3

Register Map ................................................................................................................

44

2.3.4

Register Descriptions ....................................................................................................

45

2.3.5

Exceptions and Interrupts ..............................................................................................

58

2.3.6

Data Types ...................................................................................................................

58

2.4

Memory Model ..............................................................................................................

58

2.4.1

Memory Regions, Types and Attributes ...........................................................................

59

2.4.2

Memory System Ordering of Memory Accesses ..............................................................

60

2.4.3

Behavior of Memory Accesses .......................................................................................

60

2.4.4

Software Ordering of Memory Accesses .........................................................................

61

2.4.5

Bit-Banding ...................................................................................................................

62

2.4.6

Data Storage ................................................................................................................

64

2.4.7

Synchronization Primitives .............................................................................................

65

2.5

Exception Model ...........................................................................................................

66

2.5.1

Exception States ...........................................................................................................

66

2.5.2

Exception Types ............................................................................................................

67

2.5.3

Exception Handlers .......................................................................................................

70

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2.5.4

Vector Table ..................................................................................................................

70

2.5.5

Exception Priorities .......................................................................................................

71

2.5.6

Interrupt Priority Grouping ..............................................................................................

71

2.5.7

Exception Entry and Return ...........................................................................................

71

2.6

Fault Handling ..............................................................................................................

74

2.6.1

Fault Types ...................................................................................................................

74

2.6.2

Fault Escalation and Hard Faults ....................................................................................

75

2.6.3

Fault Status Registers and Fault Address Registers ........................................................

75

2.6.4

Lockup .........................................................................................................................

76

2.7

Power Management ......................................................................................................

76

2.7.1

Entering Sleep Modes ...................................................................................................

76

2.7.2

Wake Up from Sleep Mode ............................................................................................

77

2.8

Instruction Set Summary ...............................................................................................

77

3

Cortex-M3 Peripherals ...........................................................................................

81

3.1

Functional Description ...................................................................................................

81

3.1.1

System Timer (SysTick) .................................................................................................

81

3.1.2

Nested Vectored Interrupt Controller (NVIC) ....................................................................

82

3.1.3

System Control Block (SCB) ..........................................................................................

84

3.1.4

Memory Protection Unit (MPU) .......................................................................................

84

3.2

Register Map ................................................................................................................

89

3.3

System Timer (SysTick) Register Descriptions ................................................................

91

3.4

NVIC Register Descriptions ...........................................................................................

95

3.5

System Control Block (SCB) Register Descriptions ........................................................

108

3.6

Memory Protection Unit (MPU) Register Descriptions ....................................................

137

4

JTAG Interface ......................................................................................................

147

4.1

Block Diagram ............................................................................................................

148

4.2

Functional Description .................................................................................................

148

4.2.1

JTAG Interface Pins .....................................................................................................

148

4.2.2

JTAG TAP Controller ...................................................................................................

150

4.2.3

Shift Registers ............................................................................................................

151

4.2.4

Operational Considerations ..........................................................................................

151

4.3

Initialization and Configuration .....................................................................................

154

4.4

Register Descriptions ..................................................................................................

154

4.4.1

Instruction Register (IR) ...............................................................................................

154

4.4.2

Data Registers ............................................................................................................

156

5

System Control .....................................................................................................

159

5.1

Functional Description .................................................................................................

159

5.1.1

Device Identification ....................................................................................................

159

5.1.2

Reset Control ..............................................................................................................

159

5.1.3

Power Control .............................................................................................................

162

5.1.4

Clock Control ..............................................................................................................

163

5.1.5

System Control ...........................................................................................................

169

5.2

Initialization and Configuration .....................................................................................

170

5.3

Register Map ..............................................................................................................

170

5.4

Register Descriptions ..................................................................................................

172

6

Hibernation Module ..............................................................................................

217

6.1

Block Diagram ............................................................................................................

218

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6.2

Functional Description .................................................................................................

218

6.2.1

Register Access Timing ...............................................................................................

218

6.2.2

Clock Source ..............................................................................................................

219

6.2.3

Battery Management ...................................................................................................

220

6.2.4

Real-Time Clock ..........................................................................................................

221

6.2.5

Non-Volatile Memory ...................................................................................................

221

6.2.6

Power Control .............................................................................................................

221

6.2.7

Initiating Hibernate ......................................................................................................

222

6.2.8

Interrupts and Status ...................................................................................................

222

6.3

Initialization and Configuration .....................................................................................

222

6.3.1

Initialization .................................................................................................................

223

6.3.2

RTC Match Functionality (No Hibernation) ....................................................................

223

6.3.3

RTC Match/Wake-Up from Hibernation .........................................................................

223

6.3.4

External Wake-Up from Hibernation ..............................................................................

223

6.3.5

RTC/External Wake-Up from Hibernation ......................................................................

224

6.4

Register Map ..............................................................................................................

224

6.5

Register Descriptions ..................................................................................................

224

7

Internal Memory ...................................................................................................

237

7.1

Block Diagram ............................................................................................................

237

7.2

Functional Description .................................................................................................

237

7.2.1

SRAM Memory ............................................................................................................

237

7.2.2

Flash Memory .............................................................................................................

238

7.3

Flash Memory Initialization and Configuration ...............................................................

239

7.3.1

Flash Programming .....................................................................................................

239

7.3.2

Nonvolatile Register Programming ...............................................................................

240

7.4

Register Map ..............................................................................................................

241

7.5

Flash Register Descriptions (Flash Control Offset) .........................................................

242

7.6

Flash Register Descriptions (System Control Offset) ......................................................

250

8

General-Purpose Input/Outputs (GPIOs) ...........................................................

263

8.1

Functional Description .................................................................................................

263

8.1.1

Data Control ...............................................................................................................

264

8.1.2

Interrupt Control ..........................................................................................................

265

8.1.3

Mode Control ..............................................................................................................

266

8.1.4

Commit Control ...........................................................................................................

266

8.1.5

Pad Control .................................................................................................................

266

8.1.6

Identification ...............................................................................................................

266

8.2

Initialization and Configuration .....................................................................................

266

8.3

Register Map ..............................................................................................................

267

8.4

Register Descriptions ..................................................................................................

269

9

General-Purpose Timers ......................................................................................

304

9.1

Block Diagram ............................................................................................................

304

9.2

Functional Description .................................................................................................

305

9.2.1

GPTM Reset Conditions ..............................................................................................

306

9.2.2

32-Bit Timer Operating Modes ......................................................................................

306

9.2.3

16-Bit Timer Operating Modes ......................................................................................

307

9.3

Initialization and Configuration .....................................................................................

311

9.3.1

32-Bit One-Shot/Periodic Timer Mode ...........................................................................

311

9.3.2

32-Bit Real-Time Clock (RTC) Mode .............................................................................

312

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9.3.3

16-Bit One-Shot/Periodic Timer Mode ...........................................................................

312

9.3.4

16-Bit Input Edge Count Mode .....................................................................................

313

9.3.5

16-Bit Input Edge Timing Mode ....................................................................................

313

9.3.6

16-Bit PWM Mode .......................................................................................................

314

9.4

Register Map ..............................................................................................................

314

9.5

Register Descriptions ..................................................................................................

315

10

Watchdog Timer ...................................................................................................

340

10.1

Block Diagram ............................................................................................................

341

10.2

Functional Description .................................................................................................

341

10.3

Initialization and Configuration .....................................................................................

342

10.4

Register Map ..............................................................................................................

342

10.5

Register Descriptions ..................................................................................................

343

11

Universal Asynchronous Receivers/Transmitters (UARTs) .............................

364

11.1

Block Diagram ............................................................................................................

365

11.2

Functional Description .................................................................................................

365

11.2.1

Transmit/Receive Logic ...............................................................................................

365

11.2.2

Baud-Rate Generation .................................................................................................

366

11.2.3

Data Transmission ......................................................................................................

367

11.2.4

Serial IR (SIR) .............................................................................................................

367

11.2.5

FIFO Operation ...........................................................................................................

368

11.2.6

Interrupts ....................................................................................................................

368

11.2.7

Loopback Operation ....................................................................................................

369

11.2.8

IrDA SIR block ............................................................................................................

369

11.3

Initialization and Configuration .....................................................................................

369

11.4

Register Map ..............................................................................................................

370

11.5

Register Descriptions ..................................................................................................

371

12

Synchronous Serial Interface (SSI) ....................................................................

405

12.1

Block Diagram ............................................................................................................

405

12.2

Functional Description .................................................................................................

405

12.2.1

Bit Rate Generation .....................................................................................................

406

12.2.2

FIFO Operation ...........................................................................................................

406

12.2.3

Interrupts ....................................................................................................................

406

12.2.4

Frame Formats ...........................................................................................................

407

12.3

Initialization and Configuration .....................................................................................

414

12.4

Register Map ..............................................................................................................

415

12.5

Register Descriptions ..................................................................................................

416

13

Analog Comparators ............................................................................................

442

13.1

Block Diagram ............................................................................................................

442

13.2

Functional Description .................................................................................................

443

13.2.1

Internal Reference Programming ..................................................................................

443

13.3

Initialization and Configuration .....................................................................................

444

13.4

Register Map ..............................................................................................................

445

13.5

Register Descriptions ..................................................................................................

445

14

Pin Diagram ..........................................................................................................

453

15

Signal Tables ........................................................................................................

455

15.1

100-Pin LQFP Package Pin Tables ...............................................................................

455

15.2

108-Pin BGA Package Pin Tables ................................................................................

466

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15.3

Connections for Unused Signals ...................................................................................

477

16

Operating Characteristics ...................................................................................

479

17

Electrical Characteristics ....................................................................................

480

17.1

DC Characteristics ......................................................................................................

480

17.1.1

Maximum Ratings .......................................................................................................

480

17.1.2

Recommended DC Operating Conditions ......................................................................

480

17.1.3

On-Chip Low Drop-Out (LDO) Regulator Characteristics ................................................

481

17.1.4

GPIO Module Characteristics .......................................................................................

481

17.1.5

Power Specifications ...................................................................................................

481

17.1.6

Flash Memory Characteristics ......................................................................................

483

17.1.7

Hibernation .................................................................................................................

483

17.2

AC Characteristics .......................................................................................................

483

17.2.1

Load Conditions ..........................................................................................................

483

17.2.2

Clocks ........................................................................................................................

484

17.2.3

JTAG and Boundary Scan ............................................................................................

485

17.2.4

Reset .........................................................................................................................

487

17.2.5

Sleep Modes ...............................................................................................................

489

17.2.6

Hibernation Module .....................................................................................................

489

17.2.7

General-Purpose I/O (GPIO) ........................................................................................

489

17.2.8

Synchronous Serial Interface (SSI) ...............................................................................

490

17.2.9

Analog Comparator .....................................................................................................

491

A

Serial Flash Loader ..............................................................................................

493

A.1

Serial Flash Loader .....................................................................................................

493

A.2

Interfaces ...................................................................................................................

493

A.2.1

UART .........................................................................................................................

493

A.2.2

SSI .............................................................................................................................

493

A.3

Packet Handling ..........................................................................................................

494

A.3.1

Packet Format ............................................................................................................

494

A.3.2

Sending Packets .........................................................................................................

494

A.3.3

Receiving Packets .......................................................................................................

494

A.4

Commands .................................................................................................................

495

A.4.1

COMMAND_PING (0X20) ............................................................................................

495

A.4.2

COMMAND_GET_STATUS (0x23) ...............................................................................

495

A.4.3

COMMAND_DOWNLOAD (0x21) .................................................................................

495

A.4.4

COMMAND_SEND_DATA (0x24) .................................................................................

496

A.4.5

COMMAND_RUN (0x22) .............................................................................................

496

A.4.6

COMMAND_RESET (0x25) .........................................................................................

496

B

Register Quick Reference ...................................................................................

498

C

Ordering and Contact Information .....................................................................

514

C.1

Ordering Information ....................................................................................................

514

C.2

Part Markings ..............................................................................................................

514

C.3

Kits .............................................................................................................................

515

C.4

Support Information .....................................................................................................

515

D

Package Information ............................................................................................

516

D.1

108-Ball BGA Package ................................................................................................

516

D.1.1

Package Dimensions ...................................................................................................

516

D.1.2

Tray Dimensions .........................................................................................................

518

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D.1.3

Tape and Reel Dimensions ..........................................................................................

519

D.2

100-Pin LQFP Package ...............................................................................................

520

D.2.1

Package Dimensions ...................................................................................................

520

D.2.2

Tray Dimensions .........................................................................................................

522

D.2.3

Tape and Reel Dimensions ..........................................................................................

523

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List of Figures

 

Figure 1-1.

Stellaris® LM3S1110 Microcontroller High-Level Block Diagram .............................

33

Figure 2-1.

CPU Block Diagram .............................................................................................

41

Figure 2-2.

TPIU Block Diagram ............................................................................................

42

Figure 2-3.

Cortex-M3 Register Set ........................................................................................

44

Figure 2-4.

Bit-Band Mapping ................................................................................................

64

Figure 2-5.

Data Storage .......................................................................................................

65

Figure 2-6.

Vector table .........................................................................................................

70

Figure 2-7.

Exception Stack Frame ........................................................................................

72

Figure 3-1.

SRD Use Example ...............................................................................................

87

Figure 4-1.

JTAG Module Block Diagram ..............................................................................

148

Figure 4-2.

Test Access Port State Machine .........................................................................

151

Figure 4-3.

IDCODE Register Format ...................................................................................

157

Figure 4-4.

BYPASS Register Format ...................................................................................

157

Figure 4-5.

Boundary Scan Register Format .........................................................................

158

Figure 5-1.

Basic RST Configuration ....................................................................................

160

Figure 5-2.

External Circuitry to Extend Power-On Reset .......................................................

161

Figure 5-3.

Reset Circuit Controlled by Switch ......................................................................

161

Figure 5-4.

Power Architecture ............................................................................................

163

Figure 5-5.

Main Clock Tree ................................................................................................

166

Figure 6-1.

Hibernation Module Block Diagram .....................................................................

218

Figure 6-2.

Clock Source Using Crystal ................................................................................

220

Figure 6-3.

Clock Source Using Dedicated Oscillator .............................................................

220

Figure 7-1.

Flash Block Diagram ..........................................................................................

237

Figure 8-1.

GPIO Port Block Diagram ...................................................................................

264

Figure 8-2.

GPIODATA Write Example .................................................................................

265

Figure 8-3.

GPIODATA Read Example .................................................................................

265

Figure 9-1.

GPTM Module Block Diagram ............................................................................

305

Figure 9-2.

16-Bit Input Edge Count Mode Example ..............................................................

309

Figure 9-3.

16-Bit Input Edge Time Mode Example ...............................................................

310

Figure 9-4.

16-Bit PWM Mode Example ................................................................................

311

Figure 10-1.

WDT Module Block Diagram ..............................................................................

341

Figure 11-1.

UART Module Block Diagram .............................................................................

365

Figure 11-2.

UART Character Frame .....................................................................................

366

Figure 11-3.

IrDA Data Modulation .........................................................................................

368

Figure 12-1.

SSI Module Block Diagram .................................................................................

405

Figure 12-2.

TI Synchronous Serial Frame Format (Single Transfer) ........................................

408

Figure 12-3.

TI Synchronous Serial Frame Format (Continuous Transfer) ................................

408

Figure 12-4.

Freescale SPI Format (Single Transfer) with SPO=0 and SPH=0 ..........................

409

Figure 12-5.

Freescale SPI Format (Continuous Transfer) with SPO=0 and SPH=0 ..................

409

Figure 12-6.

Freescale SPI Frame Format with SPO=0 and SPH=1 .........................................

410

Figure 12-7.

Freescale SPI Frame Format (Single Transfer) with SPO=1 and SPH=0 ...............

411

Figure 12-8.

Freescale SPI Frame Format (Continuous Transfer) with SPO=1 and SPH=0 ........

411

Figure 12-9.

Freescale SPI Frame Format with SPO=1 and SPH=1 .........................................

412

Figure 12-10.

MICROWIRE Frame Format (Single Frame) ........................................................

413

Figure 12-11.

MICROWIRE Frame Format (Continuous Transfer) .............................................

414

Figure 12-12.

MICROWIRE Frame Format, SSIFss Input Setup and Hold Requirements ............

414

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Figure 13-1.

Analog Comparator Module Block Diagram .........................................................

442

Figure 13-2.

Structure of Comparator Unit ..............................................................................

443

Figure 13-3.

Comparator Internal Reference Structure ............................................................

444

Figure 14-1.

100-Pin LQFP Package Pin Diagram ..................................................................

453

Figure 14-2.

108-Ball BGA Package Pin Diagram (Top View) ...................................................

454

Figure 17-1.

Load Conditions ................................................................................................

484

Figure 17-2.

JTAG Test Clock Input Timing .............................................................................

486

Figure 17-3.

JTAG Test Access Port (TAP) Timing ..................................................................

486

Figure 17-4.

JTAG TRST Timing ............................................................................................

487

Figure 17-5.

External Reset Timing (RST) ..............................................................................

487

Figure 17-6.

Power-On Reset Timing .....................................................................................

488

Figure 17-7.

Brown-Out Reset Timing ....................................................................................

488

Figure 17-8.

Software Reset Timing .......................................................................................

488

Figure 17-9.

Watchdog Reset Timing .....................................................................................

488

Figure 17-10.

Hibernation Module Timing .................................................................................

489

Figure 17-11.

SSI Timing for TI Frame Format (FRF=01), Single Transfer Timing

 

 

Measurement ....................................................................................................

490

Figure 17-12.

SSI Timing for MICROWIRE Frame Format (FRF=10), Single Transfer .................

491

Figure 17-13.

SSI Timing for SPI Frame Format (FRF=00), with SPH=1 .....................................

491

Figure D-1.

108-Ball BGA Package Dimensions ....................................................................

516

Figure D-2.

108-Ball BGA Tray Dimensions ...........................................................................

518

Figure D-3.

108-Ball BGA Tape and Reel Dimensions ............................................................

519

Figure D-4.

100-Pin LQFP Package Dimensions ...................................................................

520

Figure D-5.

100-Pin LQFP Tray Dimensions ..........................................................................

522

Figure D-6.

100-Pin LQFP Tape and Reel Dimensions ...........................................................

523

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List of Tables

 

Table 1.

Revision History ..................................................................................................

19

Table 2.

Documentation Conventions ................................................................................

24

Table 2-1.

Summary of Processor Mode, Privilege Level, and Stack Use ................................

44

Table 2-2.

Processor Register Map .......................................................................................

45

Table 2-3.

PSR Register Combinations .................................................................................

50

Table 2-4.

Memory Map .......................................................................................................

58

Table 2-5.

Memory Access Behavior .....................................................................................

60

Table 2-6.

SRAM Memory Bit-Banding Regions ....................................................................

62

Table 2-7.

Peripheral Memory Bit-Banding Regions ...............................................................

62

Table 2-8.

Exception Types ..................................................................................................

68

Table 2-9.

Interrupts ............................................................................................................

69

Table 2-10.

Exception Return Behavior ...................................................................................

73

Table 2-11.

Faults .................................................................................................................

74

Table 2-12.

Fault Status and Fault Address Registers ..............................................................

75

Table 2-13.

Cortex-M3 Instruction Summary ...........................................................................

77

Table 3-1.

Core Peripheral Register Regions .........................................................................

81

Table 3-2.

Memory Attributes Summary ................................................................................

84

Table 3-3.

TEX, S, C, and B Bit Field Encoding .....................................................................

87

Table 3-4.

Cache Policy for Memory Attribute Encoding .........................................................

88

Table 3-5.

AP Bit Field Encoding ..........................................................................................

88

Table 3-6.

Memory Region Attributes for Stellaris® Microcontrollers ........................................

88

Table 3-7.

Peripherals Register Map .....................................................................................

89

Table 3-8.

Interrupt Priority Levels ......................................................................................

115

Table 3-9.

Example SIZE Field Values ................................................................................

144

Table 4-1.

JTAG Port Pins Reset State ...............................................................................

149

Table 4-2.

JTAG Instruction Register Commands .................................................................

154

Table 5-1.

Clock Source Options ........................................................................................

164

Table 5-2.

Possible System Clock Frequencies Using the SYSDIV Field ...............................

167

Table 5-3.

Examples of Possible System Clock Frequencies Using the SYSDIV2 Field ..........

167

Table 5-4.

System Control Register Map .............................................................................

171

Table 5-5.

RCC2 Fields that Override RCC fields .................................................................

185

Table 6-1.

Hibernation Module Register Map .......................................................................

224

Table 7-1.

Flash Protection Policy Combinations .................................................................

238

Table 7-2.

User-Programmable Flash Memory Resident Registers .......................................

240

Table 7-3.

Flash Register Map ............................................................................................

241

Table 8-1.

GPIO Pad Configuration Examples .....................................................................

267

Table 8-2.

GPIO Interrupt Configuration Example ................................................................

267

Table 8-3.

GPIO Register Map ...........................................................................................

268

Table 9-1.

Available CCP Pins ............................................................................................

305

Table 9-2.

16-Bit Timer With Prescaler Configurations .........................................................

308

Table 9-3.

Timers Register Map ..........................................................................................

314

Table 10-1.

Watchdog Timer Register Map ............................................................................

342

Table 11-1.

UART Register Map ...........................................................................................

370

Table 12-1.

SSI Register Map ..............................................................................................

415

Table 13-1.

Internal Reference Voltage and ACREFCTL Field Values .....................................

444

Table 13-2.

Analog Comparators Register Map .....................................................................

445

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Table 15-1.

Signals by Pin Number .......................................................................................

455

Table 15-2.

Signals by Signal Name .....................................................................................

459

Table 15-3.

Signals by Function, Except for GPIO .................................................................

462

Table 15-4.

GPIO Pins and Alternate Functions .....................................................................

465

Table 15-5.

Signals by Pin Number .......................................................................................

466

Table 15-6.

Signals by Signal Name .....................................................................................

470

Table 15-7.

Signals by Function, Except for GPIO .................................................................

473

Table 15-8.

GPIO Pins and Alternate Functions .....................................................................

476

Table 15-9.

Connections for Unused Signals (100-pin LQFP) .................................................

477

Table 15-10.

Connections for Unused Signals, 108-pin BGA ....................................................

478

Table 16-1.

Temperature Characteristics ...............................................................................

479

Table 16-2.

Thermal Characteristics .....................................................................................

479

Table 16-3.

ESD Absolute Maximum Ratings ........................................................................

479

Table 17-1.

Maximum Ratings ..............................................................................................

480

Table 17-2.

Recommended DC Operating Conditions ............................................................

480

Table 17-3.

LDO Regulator Characteristics ...........................................................................

481

Table 17-4.

GPIO Module DC Characteristics ........................................................................

481

Table 17-5.

Detailed Power Specifications ............................................................................

482

Table 17-6.

Flash Memory Characteristics ............................................................................

483

Table 17-7.

Hibernation Module DC Characteristics ...............................................................

483

Table 17-8.

Phase Locked Loop (PLL) Characteristics ...........................................................

484

Table 17-9.

Actual PLL Frequency ........................................................................................

484

Table 17-10.

Clock Characteristics .........................................................................................

484

Table 17-11.

Crystal Characteristics .......................................................................................

485

Table 17-12.

JTAG Characteristics .........................................................................................

485

Table 17-13.

Reset Characteristics .........................................................................................

487

Table 17-14.

Sleep Modes AC Characteristics .........................................................................

489

Table 17-15.

Hibernation Module AC Characteristics ...............................................................

489

Table 17-16.

GPIO Characteristics .........................................................................................

490

Table 17-17.

SSI Characteristics ............................................................................................

490

Table 17-18.

Analog Comparator Characteristics .....................................................................

491

Table 17-19.

Analog Comparator Voltage Reference Characteristics ........................................

492

Table C-1.

Part Ordering Information ...................................................................................

514

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Stellaris® LM3S1110 Microcontroller

List of Registers

 

The Cortex-M3 Processor .............................................................................................................

39

Register 1:

Cortex General-Purpose Register 0 (R0) ...........................................................................

46

Register 2:

Cortex General-Purpose Register 1 (R1) ...........................................................................

46

Register 3:

Cortex General-Purpose Register 2 (R2) ...........................................................................

46

Register 4:

Cortex General-Purpose Register 3 (R3) ...........................................................................

46

Register 5:

Cortex General-Purpose Register 4 (R4) ...........................................................................

46

Register 6:

Cortex General-Purpose Register 5 (R5) ...........................................................................

46

Register 7:

Cortex General-Purpose Register 6 (R6) ...........................................................................

46

Register 8:

Cortex General-Purpose Register 7 (R7) ...........................................................................

46

Register 9:

Cortex General-Purpose Register 8 (R8) ...........................................................................

46

Register 10:

Cortex General-Purpose Register 9 (R9) ...........................................................................

46

Register 11:

Cortex General-Purpose Register 10 (R10) .......................................................................

46

Register 12:

Cortex General-Purpose Register 11 (R11) ........................................................................

46

Register 13:

Cortex General-Purpose Register 12 (R12) .......................................................................

46

Register 14:

Stack Pointer (SP) ...........................................................................................................

47

Register 15:

Link Register (LR) ............................................................................................................

48

Register 16:

Program Counter (PC) .....................................................................................................

49

Register 17:

Program Status Register (PSR) ........................................................................................

50

Register 18:

Priority Mask Register (PRIMASK) ....................................................................................

54

Register 19:

Fault Mask Register (FAULTMASK) ..................................................................................

55

Register 20:

Base Priority Mask Register (BASEPRI) ............................................................................

56

Register 21:

Control Register (CONTROL) ...........................................................................................

57

Cortex-M3 Peripherals ...................................................................................................................

81

Register 1:

SysTick Control and Status Register (STCTRL), offset 0x010 .............................................

92

Register 2:

SysTick Reload Value Register (STRELOAD), offset 0x014 ................................................

94

Register 3:

SysTick Current Value Register (STCURRENT), offset 0x018 .............................................

95

Register 4:

Interrupt 0-31 Set Enable (EN0), offset 0x100 ....................................................................

96

Register 5:

Interrupt 32-43 Set Enable (EN1), offset 0x104 ..................................................................

97

Register 6:

Interrupt 0-31 Clear Enable (DIS0), offset 0x180 ................................................................

98

Register 7:

Interrupt 32-43 Clear Enable (DIS1), offset 0x184 ..............................................................

99

Register 8:

Interrupt 0-31 Set Pending (PEND0), offset 0x200 ...........................................................

100

Register 9:

Interrupt 32-43 Set Pending (PEND1), offset 0x204 .........................................................

101

Register 10:

Interrupt 0-31 Clear Pending (UNPEND0), offset 0x280 ...................................................

102

Register 11:

Interrupt 32-43 Clear Pending (UNPEND1), offset 0x284 ..................................................

103

Register 12:

Interrupt 0-31 Active Bit (ACTIVE0), offset 0x300 .............................................................

104

Register 13:

Interrupt 32-43 Active Bit (ACTIVE1), offset 0x304 ...........................................................

105

Register 14:

Interrupt 0-3 Priority (PRI0), offset 0x400 .........................................................................

106

Register 15:

Interrupt 4-7 Priority (PRI1), offset 0x404 .........................................................................

106

Register 16:

Interrupt 8-11 Priority (PRI2), offset 0x408 .......................................................................

106

Register 17:

Interrupt 12-15 Priority (PRI3), offset 0x40C ....................................................................

106

Register 18:

Interrupt 16-19 Priority (PRI4), offset 0x410 .....................................................................

106

Register 19:

Interrupt 20-23 Priority (PRI5), offset 0x414 .....................................................................

106

Register 20:

Interrupt 24-27 Priority (PRI6), offset 0x418 .....................................................................

106

Register 21:

Interrupt 28-31 Priority (PRI7), offset 0x41C ....................................................................

106

Register 22:

Interrupt 32-35 Priority (PRI8), offset 0x420 .....................................................................

106

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Register 23: Interrupt 36-39 Priority (PRI9), offset 0x424 .....................................................................

106

Register 24: Interrupt 40-43 Priority (PRI10), offset 0x428 ...................................................................

106

Register 25: Software Trigger Interrupt (SWTRIG), offset 0xF00 ..........................................................

108

Register 26: CPU ID Base (CPUID), offset 0xD00 ...............................................................................

109

Register 27: Interrupt Control and State (INTCTRL), offset 0xD04 ........................................................

110

Register 28: Vector Table Offset (VTABLE), offset 0xD08 ....................................................................

114

Register 29: Application Interrupt and Reset Control (APINT), offset 0xD0C .........................................

115

Register 30: System Control (SYSCTRL), offset 0xD10 .......................................................................

117

Register 31: Configuration and Control (CFGCTRL), offset 0xD14 .......................................................

119

Register 32: System Handler Priority 1 (SYSPRI1), offset 0xD18 .........................................................

121

Register 33: System Handler Priority 2 (SYSPRI2), offset 0xD1C ........................................................

122

Register 34: System Handler Priority 3 (SYSPRI3), offset 0xD20 .........................................................

123

Register 35: System Handler Control and State (SYSHNDCTRL), offset 0xD24 ....................................

124

Register 36: Configurable Fault Status (FAULTSTAT), offset 0xD28 .....................................................

128

Register 37: Hard Fault Status (HFAULTSTAT), offset 0xD2C ..............................................................

134

Register 38: Memory Management Fault Address (MMADDR), offset 0xD34 ........................................

136

Register 39: Bus Fault Address (FAULTADDR), offset 0xD38 ..............................................................

137

Register 40: MPU Type (MPUTYPE), offset 0xD90 .............................................................................

138

Register 41: MPU Control (MPUCTRL), offset 0xD94 ..........................................................................

139

Register 42: MPU Region Number (MPUNUMBER), offset 0xD98 .......................................................

141

Register 43: MPU Region Base Address (MPUBASE), offset 0xD9C ...................................................

142

Register 44: MPU Region Base Address Alias 1 (MPUBASE1), offset 0xDA4 .......................................

142

Register 45: MPU Region Base Address Alias 2 (MPUBASE2), offset 0xDAC ......................................

142

Register 46: MPU Region Base Address Alias 3 (MPUBASE3), offset 0xDB4 .......................................

142

Register 47: MPU Region Attribute and Size (MPUATTR), offset 0xDA0 ...............................................

144

Register 48: MPU Region Attribute and Size Alias 1 (MPUATTR1), offset 0xDA8 ..................................

144

Register 49: MPU Region Attribute and Size Alias 2 (MPUATTR2), offset 0xDB0 ..................................

144

Register 50: MPU Region Attribute and Size Alias 3 (MPUATTR3), offset 0xDB8 ..................................

144

System Control ............................................................................................................................

159

Register 1:

Device Identification 0 (DID0), offset 0x000 .....................................................................

173

Register 2:

Brown-Out Reset Control (PBORCTL), offset 0x030 ........................................................

175

Register 3:

LDO Power Control (LDOPCTL), offset 0x034 .................................................................

176

Register 4:

Raw Interrupt Status (RIS), offset 0x050 ..........................................................................

177

Register 5:

Interrupt Mask Control (IMC), offset 0x054 ......................................................................

178

Register 6:

Masked Interrupt Status and Clear (MISC), offset 0x058 ..................................................

179

Register 7:

Reset Cause (RESC), offset 0x05C ................................................................................

180

Register 8:

Run-Mode Clock Configuration (RCC), offset 0x060 .........................................................

181

Register 9:

XTAL to PLL Translation (PLLCFG), offset 0x064 .............................................................

184

Register 10:

Run-Mode Clock Configuration 2 (RCC2), offset 0x070 ....................................................

185

Register 11:

Deep Sleep Clock Configuration (DSLPCLKCFG), offset 0x144 ........................................

187

Register 12:

Device Identification 1 (DID1), offset 0x004 .....................................................................

188

Register 13:

Device Capabilities 0 (DC0), offset 0x008 ........................................................................

190

Register 14:

Device Capabilities 1 (DC1), offset 0x010 ........................................................................

191

Register 15:

Device Capabilities 2 (DC2), offset 0x014 ........................................................................

193

Register 16:

Device Capabilities 3 (DC3), offset 0x018 ........................................................................

195

Register 17:

Device Capabilities 4 (DC4), offset 0x01C .......................................................................

197

Register 18:

Run Mode Clock Gating Control Register 0 (RCGC0), offset 0x100 ...................................

198

Register 19:

Sleep Mode Clock Gating Control Register 0 (SCGC0), offset 0x110 .................................

199

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Stellaris® LM3S1110 Microcontroller

Register 20:

Deep Sleep Mode Clock Gating Control Register 0 (DCGC0), offset 0x120 .......................

200

Register 21:

Run Mode Clock Gating Control Register 1 (RCGC1), offset 0x104 ...................................

201

Register 22:

Sleep Mode Clock Gating Control Register 1 (SCGC1), offset 0x114 .................................

203

Register 23:

Deep Sleep Mode Clock Gating Control Register 1 (DCGC1), offset 0x124 .......................

205

Register 24:

Run Mode Clock Gating Control Register 2 (RCGC2), offset 0x108 ...................................

207

Register 25:

Sleep Mode Clock Gating Control Register 2 (SCGC2), offset 0x118 .................................

209

Register 26:

Deep Sleep Mode Clock Gating Control Register 2 (DCGC2), offset 0x128 .......................

211

Register 27:

Software Reset Control 0 (SRCR0), offset 0x040 .............................................................

213

Register 28:

Software Reset Control 1 (SRCR1), offset 0x044 .............................................................

214

Register 29:

Software Reset Control 2 (SRCR2), offset 0x048 .............................................................

216

Hibernation Module .....................................................................................................................

217

Register 1:

Hibernation RTC Counter (HIBRTCC), offset 0x000 .........................................................

225

Register 2:

Hibernation RTC Match 0 (HIBRTCM0), offset 0x004 .......................................................

226

Register 3:

Hibernation RTC Match 1 (HIBRTCM1), offset 0x008 .......................................................

227

Register 4:

Hibernation RTC Load (HIBRTCLD), offset 0x00C ...........................................................

228

Register 5:

Hibernation Control (HIBCTL), offset 0x010 .....................................................................

229

Register 6:

Hibernation Interrupt Mask (HIBIM), offset 0x014 .............................................................

231

Register 7:

Hibernation Raw Interrupt Status (HIBRIS), offset 0x018 ..................................................

232

Register 8:

Hibernation Masked Interrupt Status (HIBMIS), offset 0x01C ............................................

233

Register 9:

Hibernation Interrupt Clear (HIBIC), offset 0x020 .............................................................

234

Register 10:

Hibernation RTC Trim (HIBRTCT), offset 0x024 ...............................................................

235

Register 11:

Hibernation Data (HIBDATA), offset 0x030-0x12C ............................................................

236

Internal Memory ...........................................................................................................................

237

Register 1:

Flash Memory Address (FMA), offset 0x000 ....................................................................

243

Register 2:

Flash Memory Data (FMD), offset 0x004 .........................................................................

244

Register 3:

Flash Memory Control (FMC), offset 0x008 .....................................................................

245

Register 4:

Flash Controller Raw Interrupt Status (FCRIS), offset 0x00C ............................................

247

Register 5:

Flash Controller Interrupt Mask (FCIM), offset 0x010 ........................................................

248

Register 6:

Flash Controller Masked Interrupt Status and Clear (FCMISC), offset 0x014 .....................

249

Register 7:

USec Reload (USECRL), offset 0x140 ............................................................................

251

Register 8:

Flash Memory Protection Read Enable 0 (FMPRE0), offset 0x130 and 0x200 ...................

252

Register 9:

Flash Memory Protection Program Enable 0 (FMPPE0), offset 0x134 and 0x400 ...............

253

Register 10:

User Debug (USER_DBG), offset 0x1D0 .........................................................................

254

Register 11:

User Register 0 (USER_REG0), offset 0x1E0 ..................................................................

255

Register 12:

User Register 1 (USER_REG1), offset 0x1E4 ..................................................................

256

Register 13:

Flash Memory Protection Read Enable 1 (FMPRE1), offset 0x204 ....................................

257

Register 14:

Flash Memory Protection Read Enable 2 (FMPRE2), offset 0x208 ....................................

258

Register 15:

Flash Memory Protection Read Enable 3 (FMPRE3), offset 0x20C ...................................

259

Register 16:

Flash Memory Protection Program Enable 1 (FMPPE1), offset 0x404 ...............................

260

Register 17:

Flash Memory Protection Program Enable 2 (FMPPE2), offset 0x408 ...............................

261

Register 18:

Flash Memory Protection Program Enable 3 (FMPPE3), offset 0x40C ...............................

262

General-Purpose Input/Outputs (GPIOs) ...................................................................................

263

Register 1:

GPIO Data (GPIODATA), offset 0x000 ............................................................................

270

Register 2:

GPIO Direction (GPIODIR), offset 0x400 .........................................................................

271

Register 3:

GPIO Interrupt Sense (GPIOIS), offset 0x404 ..................................................................

272

Register 4:

GPIO Interrupt Both Edges (GPIOIBE), offset 0x408 ........................................................

273

Register 5:

GPIO Interrupt Event (GPIOIEV), offset 0x40C ................................................................

274

Register 6:

GPIO Interrupt Mask (GPIOIM), offset 0x410 ...................................................................

275

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Register 7:

GPIO Raw Interrupt Status (GPIORIS), offset 0x414 ........................................................

276

Register 8:

GPIO Masked Interrupt Status (GPIOMIS), offset 0x418 ...................................................

277

Register 9:

GPIO Interrupt Clear (GPIOICR), offset 0x41C ................................................................

278

Register 10:

GPIO Alternate Function Select (GPIOAFSEL), offset 0x420 ............................................

279

Register 11:

GPIO 2-mA Drive Select (GPIODR2R), offset 0x500 ........................................................

281

Register 12:

GPIO 4-mA Drive Select (GPIODR4R), offset 0x504 ........................................................

282

Register 13:

GPIO 8-mA Drive Select (GPIODR8R), offset 0x508 ........................................................

283

Register 14:

GPIO Open Drain Select (GPIOODR), offset 0x50C .........................................................

284

Register 15:

GPIO Pull-Up Select (GPIOPUR), offset 0x510 ................................................................

285

Register 16:

GPIO Pull-Down Select (GPIOPDR), offset 0x514 ...........................................................

286

Register 17:

GPIO Slew Rate Control Select (GPIOSLR), offset 0x518 ................................................

287

Register 18:

GPIO Digital Enable (GPIODEN), offset 0x51C ................................................................

288

Register 19:

GPIO Lock (GPIOLOCK), offset 0x520 ............................................................................

289

Register 20:

GPIO Commit (GPIOCR), offset 0x524 ............................................................................

290

Register 21:

GPIO Peripheral Identification 4 (GPIOPeriphID4), offset 0xFD0 .......................................

292

Register 22:

GPIO Peripheral Identification 5 (GPIOPeriphID5), offset 0xFD4 .......................................

293

Register 23:

GPIO Peripheral Identification 6 (GPIOPeriphID6), offset 0xFD8 .......................................

294

Register 24:

GPIO Peripheral Identification 7 (GPIOPeriphID7), offset 0xFDC ......................................

295

Register 25:

GPIO Peripheral Identification 0 (GPIOPeriphID0), offset 0xFE0 .......................................

296

Register 26:

GPIO Peripheral Identification 1 (GPIOPeriphID1), offset 0xFE4 .......................................

297

Register 27:

GPIO Peripheral Identification 2 (GPIOPeriphID2), offset 0xFE8 .......................................

298

Register 28:

GPIO Peripheral Identification 3 (GPIOPeriphID3), offset 0xFEC ......................................

299

Register 29:

GPIO PrimeCell Identification 0 (GPIOPCellID0), offset 0xFF0 ..........................................

300

Register 30:

GPIO PrimeCell Identification 1 (GPIOPCellID1), offset 0xFF4 ..........................................

301

Register 31:

GPIO PrimeCell Identification 2 (GPIOPCellID2), offset 0xFF8 ..........................................

302

Register 32:

GPIO PrimeCell Identification 3 (GPIOPCellID3), offset 0xFFC .........................................

303

General-Purpose Timers .............................................................................................................

304

Register 1:

GPTM Configuration (GPTMCFG), offset 0x000 ..............................................................

316

Register 2:

GPTM TimerA Mode (GPTMTAMR), offset 0x004 ............................................................

317

Register 3:

GPTM TimerB Mode (GPTMTBMR), offset 0x008 ............................................................

319

Register 4:

GPTM Control (GPTMCTL), offset 0x00C ........................................................................

321

Register 5:

GPTM Interrupt Mask (GPTMIMR), offset 0x018 ..............................................................

324

Register 6:

GPTM Raw Interrupt Status (GPTMRIS), offset 0x01C .....................................................

326

Register 7:

GPTM Masked Interrupt Status (GPTMMIS), offset 0x020 ................................................

327

Register 8:

GPTM Interrupt Clear (GPTMICR), offset 0x024 ..............................................................

328

Register 9:

GPTM TimerA Interval Load (GPTMTAILR), offset 0x028 .................................................

330

Register 10:

GPTM TimerB Interval Load (GPTMTBILR), offset 0x02C ................................................

331

Register 11:

GPTM TimerA Match (GPTMTAMATCHR), offset 0x030 ...................................................

332

Register 12:

GPTM TimerB Match (GPTMTBMATCHR), offset 0x034 ..................................................

333

Register 13:

GPTM TimerA Prescale (GPTMTAPR), offset 0x038 ........................................................

334

Register 14:

GPTM TimerB Prescale (GPTMTBPR), offset 0x03C .......................................................

335

Register 15:

GPTM TimerA Prescale Match (GPTMTAPMR), offset 0x040 ...........................................

336

Register 16:

GPTM TimerB Prescale Match (GPTMTBPMR), offset 0x044 ...........................................

337

Register 17:

GPTM TimerA (GPTMTAR), offset 0x048 ........................................................................

338

Register 18:

GPTM TimerB (GPTMTBR), offset 0x04C .......................................................................

339

Watchdog Timer ...........................................................................................................................

340

Register 1: Watchdog Load (WDTLOAD), offset 0x000 ......................................................................

344

Register 2: Watchdog Value (WDTVALUE), offset 0x004 ...................................................................

345

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Stellaris® LM3S1110 Microcontroller

Register 3:

Watchdog Control (WDTCTL), offset 0x008 .....................................................................

346

Register 4:

Watchdog Interrupt Clear (WDTICR), offset 0x00C ..........................................................

347

Register 5:

Watchdog Raw Interrupt Status (WDTRIS), offset 0x010 ..................................................

348

Register 6:

Watchdog Masked Interrupt Status (WDTMIS), offset 0x014 .............................................

349

Register 7:

Watchdog Test (WDTTEST), offset 0x418 .......................................................................

350

Register 8:

Watchdog Lock (WDTLOCK), offset 0xC00 .....................................................................

351

Register 9:

Watchdog Peripheral Identification 4 (WDTPeriphID4), offset 0xFD0 .................................

352

Register 10:

Watchdog Peripheral Identification 5 (WDTPeriphID5), offset 0xFD4 .................................

353

Register 11:

Watchdog Peripheral Identification 6 (WDTPeriphID6), offset 0xFD8 .................................

354

Register 12:

Watchdog Peripheral Identification 7 (WDTPeriphID7), offset 0xFDC ................................

355

Register 13:

Watchdog Peripheral Identification 0 (WDTPeriphID0), offset 0xFE0 .................................

356

Register 14:

Watchdog Peripheral Identification 1 (WDTPeriphID1), offset 0xFE4 .................................

357

Register 15:

Watchdog Peripheral Identification 2 (WDTPeriphID2), offset 0xFE8 .................................

358

Register 16:

Watchdog Peripheral Identification 3 (WDTPeriphID3), offset 0xFEC .................................

359

Register 17:

Watchdog PrimeCell Identification 0 (WDTPCellID0), offset 0xFF0 ....................................

360

Register 18:

Watchdog PrimeCell Identification 1 (WDTPCellID1), offset 0xFF4 ....................................

361

Register 19:

Watchdog PrimeCell Identification 2 (WDTPCellID2), offset 0xFF8 ....................................

362

Register 20:

Watchdog PrimeCell Identification 3 (WDTPCellID3 ), offset 0xFFC ..................................

363

Universal Asynchronous Receivers/Transmitters (UARTs) .....................................................

364

Register 1:

UART Data (UARTDR), offset 0x000 ...............................................................................

372

Register 2:

UART Receive Status/Error Clear (UARTRSR/UARTECR), offset 0x004 ...........................

374

Register 3:

UART Flag (UARTFR), offset 0x018 ................................................................................

376

Register 4:

UART IrDA Low-Power Register (UARTILPR), offset 0x020 .............................................

378

Register 5:

UART Integer Baud-Rate Divisor (UARTIBRD), offset 0x024 ............................................

379

Register 6:

UART Fractional Baud-Rate Divisor (UARTFBRD), offset 0x028 .......................................

380

Register 7:

UART Line Control (UARTLCRH), offset 0x02C ...............................................................

381

Register 8:

UART Control (UARTCTL), offset 0x030 .........................................................................

383

Register 9:

UART Interrupt FIFO Level Select (UARTIFLS), offset 0x034 ...........................................

385

Register 10:

UART Interrupt Mask (UARTIM), offset 0x038 .................................................................

387

Register 11:

UART Raw Interrupt Status (UARTRIS), offset 0x03C ......................................................

389

Register 12:

UART Masked Interrupt Status (UARTMIS), offset 0x040 .................................................

390

Register 13:

UART Interrupt Clear (UARTICR), offset 0x044 ...............................................................

391

Register 14:

UART Peripheral Identification 4 (UARTPeriphID4), offset 0xFD0 .....................................

393

Register 15:

UART Peripheral Identification 5 (UARTPeriphID5), offset 0xFD4 .....................................

394

Register 16:

UART Peripheral Identification 6 (UARTPeriphID6), offset 0xFD8 .....................................

395

Register 17:

UART Peripheral Identification 7 (UARTPeriphID7), offset 0xFDC .....................................

396

Register 18:

UART Peripheral Identification 0 (UARTPeriphID0), offset 0xFE0 ......................................

397

Register 19:

UART Peripheral Identification 1 (UARTPeriphID1), offset 0xFE4 ......................................

398

Register 20:

UART Peripheral Identification 2 (UARTPeriphID2), offset 0xFE8 ......................................

399

Register 21:

UART Peripheral Identification 3 (UARTPeriphID3), offset 0xFEC .....................................

400

Register 22:

UART PrimeCell Identification 0 (UARTPCellID0), offset 0xFF0 ........................................

401

Register 23:

UART PrimeCell Identification 1 (UARTPCellID1), offset 0xFF4 ........................................

402

Register 24:

UART PrimeCell Identification 2 (UARTPCellID2), offset 0xFF8 ........................................

403

Register 25:

UART PrimeCell Identification 3 (UARTPCellID3), offset 0xFFC ........................................

404

Synchronous Serial Interface (SSI) ............................................................................................

405

Register 1:

SSI Control 0 (SSICR0), offset 0x000 ..............................................................................

417

Register 2:

SSI Control 1 (SSICR1), offset 0x004 ..............................................................................

419

Register 3:

SSI Data (SSIDR), offset 0x008 ......................................................................................

421

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Register 4:

SSI Status (SSISR), offset 0x00C ...................................................................................

422

Register 5:

SSI Clock Prescale (SSICPSR), offset 0x010 ..................................................................

424

Register 6:

SSI Interrupt Mask (SSIIM), offset 0x014 .........................................................................

425

Register 7:

SSI Raw Interrupt Status (SSIRIS), offset 0x018 ..............................................................

427

Register 8:

SSI Masked Interrupt Status (SSIMIS), offset 0x01C ........................................................

428

Register 9:

SSI Interrupt Clear (SSIICR), offset 0x020 .......................................................................

429

Register 10:

SSI Peripheral Identification 4 (SSIPeriphID4), offset 0xFD0 .............................................

430

Register 11:

SSI Peripheral Identification 5 (SSIPeriphID5), offset 0xFD4 .............................................

431

Register 12:

SSI Peripheral Identification 6 (SSIPeriphID6), offset 0xFD8 .............................................

432

Register 13:

SSI Peripheral Identification 7 (SSIPeriphID7), offset 0xFDC ............................................

433

Register 14:

SSI Peripheral Identification 0 (SSIPeriphID0), offset 0xFE0 .............................................

434

Register 15:

SSI Peripheral Identification 1 (SSIPeriphID1), offset 0xFE4 .............................................

435

Register 16:

SSI Peripheral Identification 2 (SSIPeriphID2), offset 0xFE8 .............................................

436

Register 17:

SSI Peripheral Identification 3 (SSIPeriphID3), offset 0xFEC ............................................

437

Register 18:

SSI PrimeCell Identification 0 (SSIPCellID0), offset 0xFF0 ...............................................

438

Register 19:

SSI PrimeCell Identification 1 (SSIPCellID1), offset 0xFF4 ...............................................

439

Register 20:

SSI PrimeCell Identification 2 (SSIPCellID2), offset 0xFF8 ...............................................

440

Register 21:

SSI PrimeCell Identification 3 (SSIPCellID3), offset 0xFFC ...............................................

441

Analog Comparators ...................................................................................................................

442

Register 1:

Analog Comparator Masked Interrupt Status (ACMIS), offset 0x000 ..................................

446

Register 2:

Analog Comparator Raw Interrupt Status (ACRIS), offset 0x004 .......................................

447

Register 3:

Analog Comparator Interrupt Enable (ACINTEN), offset 0x008 .........................................

448

Register 4:

Analog Comparator Reference Voltage Control (ACREFCTL), offset 0x010 .......................

449

Register 5:

Analog Comparator Status 0 (ACSTAT0), offset 0x020 .....................................................

450

Register 6:

Analog Comparator Status 1 (ACSTAT1), offset 0x040 .....................................................

450

Register 7:

Analog Comparator Control 0 (ACCTL0), offset 0x024 .....................................................

451

Register 8:

Analog Comparator Control 1 (ACCTL1), offset 0x044 .....................................................

451

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Revision History

The revision history table notes changes made between the indicated revisions of the LM3S1110 data sheet.

Table 1. Revision History

Date

Revision

Description

September 2010

7787

■ Reorganized ARM Cortex-M3 Processor Core, Memory Map and Interrupts chapters, creating two

 

 

new chapters, The Cortex-M3 Processor and Cortex-M3 Peripherals. Much additional content was

 

 

added, including all the Cortex-M3 registers.

 

 

■ Changed register names to be consistent with StellarisWare® names: the Cortex-M3 Interrupt

 

 

Control and Status (ICSR) register to the Interrupt Control and State (INTCTRL) register, and

 

 

the Cortex-M3 Interrupt Set Enable (SETNA) register to the Interrupt 0-31 Set Enable (EN0)

 

 

register.

 

 

■ Added clarification of instruction execution during Flash operations.

 

 

■ Modified Figure 8-1 on page 264 to clarify operation of the GPIO inputs when used as an alternate

 

 

function.

 

 

■ Corrected GPIOAMSEL bit field in GPIO Analog Mode Select (GPIOAMSEL) register to be eight-bits

 

 

wide, bits[7:0].

 

 

■ Added caution not to apply a Low value to PB7 when debugging; a Low value on the pin causes

 

 

the JTAG controller to be reset, resulting in a loss of JTAG communication.

 

 

■ In General-Purpose Timers chapter, clarified operation of the 32-bit RTC mode.

 

 

■ In Electrical Characteristics chapter:

 

 

– Added ILKG parameter (GPIO input leakage current) to Table 17-4 on page 481.

 

 

– Corrected values for tCLKRF parameter (SSIClk rise/fall time) in Table 17-17 on page 490.

 

 

■ Added dimensions for Tray and Tape and Reel shipping mediums.

June 2010

7393

■ Corrected base address for SRAM in architectural overview chapter.

 

 

■ Clarified system clock operation, adding content to “Clock Control” on page 163.

 

 

■ In Signal Tables chapter, added table "Connections for Unused Signals."

 

 

■ In "Thermal Characteristics" table, corrected thermal resistance value from 34 to 32.

 

 

■ In "Reset Characteristics" table, corrected value for supply voltage (VDD) rise time.

 

 

■ Additional minor data sheet clarifications and corrections.

April 2010

7007

■ Added caution note to the I2C Master Timer Period (I2CMTPR) register description and changed

field width to 7 bits.

■ Removed erroneous text about restoring the Flash Protection registers. ■ Added note about RST signal routing.

■ Clarified the function of the TnSTALL bit in the GPTMCTL register. ■ Additional minor data sheet clarifications and corrections.

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Revision History

Table 1. Revision History (continued)

Date

Revision

Description

January 2010

6712

■ In "System Control" section, clarified Debug Access Port operation after Sleep modes.

 

 

■ Clarified wording on Flash memory access errors.

 

 

■ Added section on Flash interrupts.

 

 

■ Clarified operation of SSI transmit FIFO.

 

 

■ Made these changes to the Operating Characteristics chapter:

 

 

– Added storage temperature ratings to "Temperature Characteristics" table

 

 

– Added "ESD Absolute Maximum Ratings" table

 

 

■ Made these changes to the Electrical Characteristics chapter:

 

 

– In "Flash Memory Characteristics" table, corrected Mass erase time

 

 

– Added sleep and deep-sleep wake-up times ("Sleep Modes AC Characteristics" table)

 

 

– In "Reset Characteristics" table, corrected units for supply voltage (VDD) rise time

October 2009

6462

■ Removed erroneous reference to the WRC bit in the Hibernation chapter.

 

 

■ Deletedresetvaluefor16-bitmodefrom GPTMTAILR, GPTMTAMATCHR,and GPTMTAR registers

 

 

because the module resets in 32-bit mode.

 

 

■ Made these changes to the Electrical Characteristics chapter:

 

 

– Removed VSIH and VSIL parameters from Operating Conditions table.

 

 

– Added table showing actual PLL frequency depending on input crystal.

 

 

– Changed the name of the tHIB_REG_WRITE parameter to tHIB_REG_ACCESS.

 

 

– Changed SSI set up and hold times to be expressed in system clocks, not ns.

July 2009

5920

Corrected ordering numbers.

July 2009

5902

■ Clarified Power-on reset and

 

pin operation; added new diagrams.

RST

■ Corrected the reset value of the Hibernation Data (HIBDATA) and Hibernation Control (HIBCTL)

registers.

■ Clarified explanation of nonvolatile register programming in Internal Memory chapter.

■ AddedexplanationofresetvaluetoFMPRE0/1/2/3,FMPPE0/1/2/3,USER_DBG,andUSER_REG0/1

registers.

■ Changed buffer type for WAKE pin to TTL and HIB pin to OD.

■ In ADC characteristics table, changed Max value for GAIN parameter from ±1 to ±3 and added EIR (Internal voltage reference error) parameter.

■ Additional minor data sheet clarifications and corrections.

April 2009

5367

■ Added JTAG/SWD clarification (see “Communication with JTAG/SWD” on page 153).

Added clarification that the PLL operates at 400 MHz, but is divided by two prior to the application of the output divisor.

Added "GPIO Module DC Characteristics" table (see Table 17-4 on page 481).

Additional minor data sheet clarifications and corrections.

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Table 1. Revision History (continued)

Date

Revision

Description

January 2009

4660

■ Corrected bit type for RELOAD bit field in SysTick Reload Value register; changed to R/W.

 

 

■ Clarification added as to what happens when the SSI in slave mode is required to transmit but there

 

 

is no data in the TX FIFO.

 

 

■ Additional minor data sheet clarifications and corrections.

November 2008

4283

■ Revised High-Level Block Diagram.

 

 

■ Additional minor data sheet clarifications and corrections were made.

October 2008

4149

■ Corrected values for DSOSCSRC bit field in Deep Sleep Clock Configuration (DSLPCLKCFG)

 

 

register.

 

 

■ The FMA value for the FMPRE3 register was incorrect in the Flash Resident Registers table in the

 

 

Internal Memory chapter. The correct value is 0x0000.0006.

 

 

■ Incorrect Comparator Operating Modes tables were removed from the Analog Comparators chapter.

August 2008

3447

■ Added note on clearing interrupts to Interrupts chapter.

 

 

■ Added Power Architecture diagram to System Control chapter.

 

 

■ Additional minor data sheet clarifications and corrections.

July 2008

3108

■ Additional minor data sheet clarifications and corrections.

May 2008

2972

■ As noted in the PCN, the option to provide VDD25 power from external sources was removed. Use

 

 

the LDO output as the source of VDD25 input.

 

 

■ Additional minor data sheet clarifications and corrections.

April 2008

2881

■ The ΘJA value was changed from 55.3 to 34 in the "Thermal Characteristics" table in the Operating

 

 

Characteristics chapter.

■ Bit 31 of the DC3 register was incorrectly described in prior versions of the data sheet. A reset of 1 indicates that an even CCP pin is present and can be used as a 32-KHz input clock.

■ Values for IDD_HIBERNATE were added to the "Detailed Power Specifications" table in the "Electrical Characteristics" chapter.

■ The "Hibernation Module DC Electricals"table was added to the "Electrical Characteristics"chapter.

■ The TVDDRISE parameter in the "Reset Characteristics" table in the "Electrical Characteristics" chapter was changed from a max of 100 to 250.

■ The maximum value on Core supply voltage (VDD25) in the "Maximum Ratings" table in the "Electrical

Characteristics" chapter was changed from 4 to 3.

■ The operational frequency of the internal 30-kHz oscillator clock source is 30 kHz ± 50% (prior data sheets incorrectly noted it as 30 kHz ± 30%).

■ A value of 0x3 in bits 5:4 of the MISC register (OSCSRC) indicates the 30-KHz internal oscillator is the input source for the oscillator. Prior data sheets incorrectly noted 0x3 as a reserved value.

■ The reset for bits 6:4 of the RCC2 register (OSCSRC2) is 0x1 (IOSC). Prior data sheets incorrectly noted the reset was 0x0 (MOSC).

■ Two figures on clock source were added to the "Hibernation Module":

– Clock Source Using Crystal

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Revision History

Table 1. Revision History (continued)

Date

Revision Description

Clock Source Using Dedicated Oscillator

The following notes on battery management were added to the "Hibernation Module" chapter:

Battery voltage is not measured while in Hibernate mode.

System level factors may affect the accuracy of the low battery detect circuit. The designer should consider battery type, discharge characteristics, and a test load during battery voltage measurements.

A note on high-current applications was added to the GPIO chapter:

For special high-current applications, the GPIO output buffers may be used with the following restrictions. With the GPIO pins configured as 8-mA output drivers, a total of four GPIO outputs may be used to sink current loads up to 18 mA each. At 18-mA sink current loading, the VOL value is specified as 1.2 V. The high-current GPIO package pins must be selected such that there are only a maximum of two per side of the physical package or BGA pin group with the total number of high-current GPIO outputs not exceeding four for the entire package.

A note on Schmitt inputs was added to the GPIO chapter: Pins configured as digital inputs are Schmitt-triggered.

The Buffer type on the WAKE pin changed from OD to - in the Signal Tables.

The "Differential Sampling Range" figures in the ADC chapter were clarified.

Thelastrevisionofthedatasheet(revision2550)introducedtwoerrorsthathavenowbeencorrected:

The LQFP pin diagrams and pin tables were missing the comparator positive and negative input pins.

The base address was listed incorrectly in the FMPRE0 and FMPPE0 register bit diagrams.

Additional minor data sheet clarifications and corrections.

March 2008

2550

Started tracking revision history.

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About This Document

This data sheet provides reference information for the LM3S1110 microcontroller, describing the functional blocks of the system-on-chip (SoC) device designed around the ARM® Cortex™-M3 core.

Audience

This manual is intended for system software developers, hardware designers, and application developers.

About This Manual

This document is organized into sections that correspond to each major feature.

Related Documents

The following related documents are available on the Stellaris® web site at www.ti.com/stellaris:

Stellaris® Errata

ARM® Cortex™-M3 Errata

Cortex™-M3 Instruction Set Technical User's Manual

Stellaris® Graphics Library User's Guide

Stellaris® Peripheral Driver Library User's Guide

The following related documents are also referenced:

ARM® Debug Interface V5 Architecture Specification

IEEE Standard 1149.1-Test Access Port and Boundary-Scan Architecture

This documentation list was current as of publication date. Please check the web site for additional documentation, including application notes and white papers.

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Texas instruments STELLARIS LM3S1110 DATA SHEET

About This Document

Documentation Conventions

This document uses the conventions shown in Table 2 on page 24.

Table 2. Documentation Conventions

Notation Meaning

General Register Notation

REGISTER

APB registers are indicated in uppercase bold. For example, PBORCTL is the Power-On and

 

Brown-Out Reset Control register. If a register name contains a lowercase n, it represents more

 

than one register. For example, SRCRn represents any (or all) of the three Software Reset Control

 

registers: SRCR0, SRCR1 , and SRCR2.

bit

A single bit in a register.

bit field

Two or more consecutive and related bits.

offset 0xnnn

A hexadecimal increment to a register's address, relative to that module's base address as specified

 

in Table 2-4 on page 58.

Register N

Registers are numbered consecutively throughout the document to aid in referencing them. The

 

register number has no meaning to software.

reserved

Register bits marked reserved are reserved for future use. In most cases, reserved bits are set to

 

0; however, user software should not rely on the value of a reserved bit. To provide software

 

compatibility with future products, the value of a reserved bit should be preserved across a

 

read-modify-write operation.

yy:xx

The range of register bits inclusive from xx to yy. For example, 31:15 means bits 15 through 31 in

 

that register.

Register Bit/Field

This value in the register bit diagram indicates whether software running on the controller can

Types

change the value of the bit field.

RC

Software can read this field. The bit or field is cleared by hardware after reading the bit/field.

RO

Software can read this field. Always write the chip reset value.

R/W

Software can read or write this field.

R/WC

Software can read or write this field. Writing to it with any value clears the register.

R/W1C

Software can read or write this field. A write of a 0 to a W1C bit does not affect the bit value in the

 

register. A write of a 1 clears the value of the bit in the register; the remaining bits remain unchanged.

 

This register type is primarily used for clearing interrupt status bits where the read operation

 

provides the interrupt status and the write of the read value clears only the interrupts being reported

 

at the time the register was read.

R/W1S

Software can read or write a 1 to this field. A write of a 0 to a R/W1S bit does not affect the bit

 

value in the register.

W1C

Software can write this field. A write of a 0 to a W1C bit does not affect the bit value in the register.

 

A write of a 1 clears the value of the bit in the register; the remaining bits remain unchanged. A

 

read of the register returns no meaningful data.

 

This register is typically used to clear the corresponding bit in an interrupt register.

WO

Only a write by software is valid; a read of the register returns no meaningful data.

Register Bit/Field

This value in the register bit diagram shows the bit/field value after any reset, unless noted.

Reset Value

 

0

Bit cleared to 0 on chip reset.

1

Bit set to 1 on chip reset.

-

Nondeterministic.

Pin/Signal Notation

 

[ ]

Pin alternate function; a pin defaults to the signal without the brackets.

pin

Refers to the physical connection on the package.

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Table 2. Documentation Conventions (continued)

Notation

Meaning

signal

Refers to the electrical signal encoding of a pin.

assert a signal

Change the value of the signal from the logically False state to the logically True state. For active

 

 

High signals, the asserted signal value is 1 (High); for active Low signals, the asserted signal value

 

 

is 0 (Low). The active polarity (High or Low) is defined by the signal name (see SIGNAL and

 

 

 

 

SIGNAL

 

 

below).

deassert a signal

Change the value of the signal from the logically True state to the logically False state.

 

 

Signal names are in uppercase and in the Courier font. An overbar on a signal name indicates that

SIGNAL

 

 

it is active Low. To assert

 

is to drive it Low; to deassert

 

is to drive it High.

 

 

SIGNAL

SIGNAL

SIGNAL

Signal names are in uppercase and in the Courier font. An active High signal has no overbar. To

 

 

assert SIGNAL is to drive it High; to deassert SIGNAL is to drive it Low.

Numbers

XAn uppercase X indicates any of several values is allowed, where X can be any legal pattern. For example, a binary value of 0X00 can be either 0100 or 0000, a hex value of 0xX is 0x0 or 0x1, and so on.

0x

Hexadecimal numbers have a prefix of 0x. For example, 0x00FF is the hexadecimal number FF.

 

All other numbers within register tables are assumed to be binary. Within conceptual information,

 

binary numbers are indicated with a b suffix, for example, 1011b, and decimal numbers are written

 

without a prefix or suffix.

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Architectural Overview

1Architectural Overview

The Stellaris® family of microcontrollers—the first ARM® Cortex™-M3 based controllers—brings high-performance 32-bit computing to cost-sensitive embedded microcontroller applications. These pioneering parts deliver customers 32-bit performance at a cost equivalent to legacy 8- and 16-bit devices, all in a package with a small footprint.

The Stellaris® family offers efficient performance and extensive integration, favorably positioning the device into cost-conscious applications requiring significant control-processing and connectivity capabilities. The Stellaris® LM3S1000 series extends the Stellaris® family with larger on-chip memories, enhanced power management, and expanded I/O and control capabilities.

The LM3S1110 microcontroller is targeted for industrial applications, including remote monitoring, electronic point-of-sale machines, test and measurement equipment, network appliances and switches, factory automation, HVAC and building control, gaming equipment, motion control, medical instrumentation, and fire and security.

For applications requiring extreme conservation of power, the LM3S1110 microcontroller features a battery-backed Hibernation module to efficiently power down the LM3S1110 to a low-power state during extended periods of inactivity. With a power-up/power-down sequencer, a continuous time counter (RTC), a pair of match registers, an APB interface to the system bus, and dedicated non-volatile memory, the Hibernation module positions the LM3S1110 microcontroller perfectly for battery applications.

In addition, the LM3S1110 microcontroller offers the advantages of ARM's widely available development tools,System-on-Chip(SoC) infrastructureIPapplications,and a large user community. Additionally, the microcontroller uses ARM's Thumb®-compatible Thumb-2 instruction set to reduce memory requirements and, thereby, cost. Finally, the LM3S1110 microcontroller is code-compatible to all members of the extensive Stellaris® family; providing flexibility to fit our customers' precise needs.

Texas Instruments offers a complete solution to get to market quickly, with evaluation and development boards, white papers and application notes, an easy-to-use peripheral driver library, and a strong support, sales, and distributor network. See “Ordering and Contact

Information” on page 514 for ordering information for Stellaris® family devices.

1.1Product Features

The LM3S1110 microcontroller includes the following product features:

32-Bit RISC Performance

32-bit ARM® Cortex™-M3 v7M architecture optimized for small-footprint embedded applications

System timer (SysTick), providing a simple, 24-bit clear-on-write, decrementing, wrap-on-zero counter with a flexible control mechanism

Thumb®-compatible Thumb-2-only instruction set processor core for high code density

25-MHz operation

Hardware-division and single-cycle-multiplication

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Integrated Nested Vectored Interrupt Controller (NVIC) providing deterministic interrupt handling

23 interrupts with eight priority levels

Memory protection unit (MPU), providing a privileged mode for protected operating system functionality

Unaligned data access, enabling data to be efficiently packed into memory

Atomic bit manipulation (bit-banding), delivering maximum memory utilization and streamlined peripheral control

ARM® Cortex™-M3 Processor Core

Compact core.

Thumb-2 instruction set, delivering the high-performance expected of an ARM core in the memory size usually associated with 8- and 16-bit devices; typically in the range of a few kilobytes of memory for microcontroller class applications.

Rapid application execution through Harvard architecture characterized by separate buses for instruction and data.

Exceptionalinterrupthandling,byimplementingtheregistermanipulationsrequiredforhandling an interrupt in hardware.

Deterministic, fast interrupt processing: always 12 cycles, or just 6 cycles with tail-chaining

Memory protection unit (MPU) to provide a privileged mode of operation for complex applications.

Migration from the ARM7™ processor family for better performance and power efficiency.

Full-featured debug solution

Serial Wire JTAG Debug Port (SWJ-DP)

Flash Patch and Breakpoint (FPB) unit for implementing breakpoints

Data Watchpoint and Trigger (DWT) unit for implementing watchpoints, trigger resources, and system profiling

Instrumentation Trace Macrocell (ITM) for support of printf style debugging

Trace Port Interface Unit (TPIU) for bridging to a Trace Port Analyzer

Optimized for single-cycle flash usage

Three sleep modes with clock gating for low power

Single-cycle multiply instruction and hardware divide

Atomic operations

ARM Thumb2 mixed 16-/32-bit instruction set

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Architectural Overview

1.25 DMIPS/MHz

JTAG

IEEE 1149.1-1990 compatible Test Access Port (TAP) controller

Four-bit Instruction Register (IR) chain for storing JTAG instructions

IEEE standard instructions: BYPASS, IDCODE, SAMPLE/PRELOAD, EXTEST and INTEST

ARM additional instructions: APACC, DPACC and ABORT

Integrated ARM Serial Wire Debug (SWD)

Hibernation

System power control using discrete external regulator

Dedicated pin for waking from an external signal

Low-battery detection, signaling, and interrupt generation

32-bit real-time clock (RTC)

Two 32-bit RTC match registers for timed wake-up and interrupt generation

Clock source from a 32.768-kHz external oscillator or a 4.194304-MHz crystal

RTC predivider trim for making fine adjustments to the clock rate

64 32-bit words of non-volatile memory

Programmable interrupts for RTC match, external wake, and low battery events

Internal Memory

64 KB single-cycle flash

User-managed flash block protection on a 2-KB block basis

User-managed flash data programming

User-defined and managed flash-protection block

16 KB single-cycle SRAM

GPIOs

20-41 GPIOs, depending on configuration

5-V-tolerant in input configuration

Programmable control for GPIO interrupts

Interrupt generation masking

Edge-triggered on rising, falling, or both

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Level-sensitive on High or Low values

Bit masking in both read and write operations through address lines

Pins configured as digital inputs are Schmitt-triggered.

Programmable control for GPIO pad configuration

Weak pull-up or pull-down resistors

2-mA, 4-mA, and 8-mA pad drive for digital communication; up to four pads can be configured with an 18-mA pad drive for high-current applications

Slew rate control for the 8-mA drive

Open drain enables

Digital input enables

General-Purpose Timers

Three General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timers/counters. Each GPTM can be configured to operate independently:

As a single 32-bit timer

As one 32-bit Real-Time Clock (RTC) to event capture

For Pulse Width Modulation (PWM)

32-bit Timer modes

Programmable one-shot timer

Programmable periodic timer

Real-Time Clock when using an external 32.768-KHz clock as the input

User-enabled stalling when the controller asserts CPU Halt flag during debug

16-bit Timer modes

General-purpose timer function with an 8-bit prescaler (for one-shot and periodic modes only)

Programmable one-shot timer

Programmable periodic timer

User-enabled stalling when the controller asserts CPU Halt flag during debug

16-bit Input Capture modes

Input edge count capture

Input edge time capture

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Architectural Overview

16-bit PWM mode

Simple PWM mode with software-programmable output inversion of the PWM signal

ARM FiRM-compliant Watchdog Timer

32-bit down counter with a programmable load register

Separate watchdog clock with an enable

Programmable interrupt generation logic with interrupt masking

Lock register protection from runaway software

Reset generation logic with an enable/disable

User-enabled stalling when the controller asserts the CPU Halt flag during debug

UART

Two fully programmable 16C550-type UARTs with IrDA support

Separate 16x8 transmit (TX) and receive (RX) FIFOs to reduce CPU interrupt service loading

Programmable baud-rate generator allowing speeds up to 1.5625 Mbps

Programmable FIFO length, including 1-byte deep operation providing conventional double-buffered interface

FIFO trigger levels of 1/8, 1/4, 1/2, 3/4, and 7/8

Standard asynchronous communication bits for start, stop, and parity

False-start bit detection

Line-break generation and detection

Fully programmable serial interface characteristics

5, 6, 7, or 8 data bits

Even, odd, stick, or no-parity bit generation/detection

1 or 2 stop bit generation

IrDA serial-IR (SIR) encoder/decoder providing

Programmable use of IrDA Serial Infrared (SIR) or UART input/output

Support of IrDA SIR encoder/decoder functions for data rates up to 115.2 Kbps half-duplex

Support of normal 3/16 and low-power (1.41-2.23 μs) bit durations

Programmable internal clock generator enabling division of reference clock by 1 to 256 for low-power mode bit duration

Synchronous Serial Interface (SSI)

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