Texas Instruments MSP430x4xx manuály

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Texas instruments MSP430x4xx Uživatelský manuál (512 strany)

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Tabulka s obsahem

User’s Guide

Read This First

Glossary

Contents

Introduction

1.1 Architecture

1.2 Flexible Clock System

1.3 Embedded Emulation

1.4 Address Space

1.4.3 Peripheral Modules

1.4.5 Memory Organization

System Resets, Interrupts

2.1.1 Brownout Reset (BOR)

Figure 2−2. Brownout Timing

Software Initialization

2.2 Interrupts

Reset/NMI Pin

Oscillator Fault

Flash Access Violation

2.2.2 Maskable Interrupts

2.2.3 Interrupt Processing

Interrupt Acceptance

Return From Interrupt

2.2.4 Interrupt Vectors

2.3 Operating Modes

2.5 Connection of Unused Pins

  

3.1 CPU Introduction

Figure 3−1. CPU Block Diagram

3.2 CPU Registers

3.2.2 Stack Pointer (SP)

Figure 3−3. Stack Pointer

Figure 3−4. Stack Usage

3.2.3 Status Register (SR)

3.3 Addressing Modes

3.3.1 Register Mode

3.3.2 Indexed Mode

3.3.3 Symbolic Mode

3.3.4 Absolute Mode

3.3.5 Indirect Register Mode

3.3.7 Immediate Mode

3.4 Instruction Set

B/W D/S-Reg

3.4.3 Jumps

Table 3−13.Jump Instructions

Clear carry bit

Clear negative bit

Decrement destination

] Increment destination

−> PC

No operation

Rotate left arithmetically

Rotate left through carry

Instruction Set

100

RISC 16−Bit CPU

100

Instruction Set

101

15 8 7 0

102

→ PC −−−−

109

  

110

4-3FLL+ Clock Module

112

4-4 FLL+ Clock Module

113

FLL+ Clock Module Operation

114

4-5FLL+ Clock Module

114

4.2.2 LFXT1 Oscillator

115

4.2.3 XT2 Oscillator

115

DCO Frequency Range

116

4.2.6 DCO Modulator

117

4.2.9 Buffered Clock Output

118

Table 4−2.FLL+ Registers

120

FLL+ Clock Module Registers

122

4-13FLL+ Clock Module

122

76543210

123

DCOPLUS XTS_FLL XCAPxPF XT2OF

123

XT1OF LFOF DCOF

123

4-16 FLL+ Clock Module

125

  

126

5.1 Flash Memory Introduction

127

5.2 Flash Memory Segmentation

128

5.3 Flash Memory Operation

129

5.3.2 Erasing Flash Memory

130

Table 5−1.Erase Modes

130

Initiating an Erase from RAM

132

5.3.3 Writing Flash Memory

133

Table 5−2.Write Modes

133

Byte/Word Write

133

Block Write

136

Block Write Flow and Example

137

Figure 5−11. Block Write Flow

137

Flash Memory Operation

140

5-15 Flash Memory Controller

140

- Program via JTAG

140

5-16 Flash Memory Controller

141

5.4 Flash Memory Registers

142

Flash Memory Registers

144

5-19 Flash Memory Controller

144

5-21 Flash Memory Controller

146

  

147

6.1 SVS Introduction

148

Figure 6−1. SVS Block Diagram

149

6.2 SVS Operation

150

6.2.3 Changing the VLDx Bits

151

6.2.4 SVS Operating Range

152

6.3 SVS Registers

153

Hardware Multiplier

154

7.2.1 Operand Registers

156

Table 7−1.OP1 addresses

156

7.2.2 Result Registers

157

Table 7−2.RESHI Contents

157

Table 7−3.SUMEXT Contents

157

MACS Underflow and Overflow

157

7.2.3 Software Examples

158

7.2.5 Using Interrupts

159

 

161

8.1 DMA Introduction

162

8.2 DMA Operation

164

8.2.2 DMA Transfer Modes

165

Table 8−1.DMA Transfer Modes

165

Single Transfer

166

Block Transfers

168

Burst-Block Transfers

170

Edge-Sensitive Triggers

172

Level-Sensitive Triggers

172

8.2.4 Stopping DMA Transfers

174

8.2.5 DMA Channel Priorities

174

8.2.6 DMA Transfer Cycle Time

175

8.2.9 Using the I

177

8.3 DMA Registers

178

Digital I/O

184

9.1 Digital I/O Introduction

185

9.2 Digital I/O Operation

186

Digital I/O Operation

187

9-4 Digital I/O

187

9.2.5 P1 and P2 Interrupts

188

Interrupt Enable P1IE, P2IE

189

9.3 Digital I/O Registers

190

Chapter 10

191

Watchdog Timer Introduction

193

10.2 Watchdog Timer Operation

194

10.2.5 WDT+ Enhancements

195

10.2.7 Software Examples

196

10.3 Watchdog Timer Registers

197

Watchdog Timer Registers

199

 

201

Basic Timer1 Introduction

203

11-3Basic Timer1

203

11.2 Basic Timer1 Operation

204

11-5Basic Timer1

205

11.3 Basic Timer1 Registers

206

11-8 Basic Timer1

208

11-9Basic Timer1

209

Chapter 12

210

12.1 Timer_A Introduction

211

Timer_A Introduction

212

12-3Timer_A

212

12.2 Timer_A Operation

213

12.2.2 Starting the Timer

214

12.2.3 Timer Mode Control

214

Table 12−1.Timer Modes

214

Figure 12−2. Up Mode

215

Continuous Mode

216

Figure 12−4. Continuous Mode

216

Use of the Continuous Mode

217

Up/Down Mode

218

Figure 12−7. Up/Down Mode

218

Use of the Up/Down Mode

219

12.2.4 Capture/Compare Blocks

220

Capture Mode

220

Figure 12−11.Capture Cycle

221

Compare Mode

221

12.2.5 Output Unit

222

Output Modes

222

Table 12−2.Output Modes

222

Timer_A Operation

223

12-14 Timer_A

223

12-15Timer_A

224

12-16 Timer_A

225

12.2.6 Timer_A Interrupts

226

TACCR0 Interrupt

226

12-18 Timer_A

227

12.3 Timer_A Registers

228

TAR, Timer_A Register

230

Chapter 13

233

13.1 Timer_B Introduction

234

Timer_B Introduction

235

13-3Timer_B

235

13.2 Timer_B Operation

236

13.2.2 Starting the Timer

237

13.2.3 Timer Mode Control

237

Table 13−1.Timer Modes

237

Figure 13−2. Up Mode

238

Figure 13−4. Continuous Mode

239

Figure 13−7. Up/Down Mode

241

13.2.4 Capture/Compare Blocks

243

Figure 13−11.Capture Cycle

244

Table 13−2.TBCLx Load Events

245

13.2.5 Output Unit

246

Table 13−4.Output Modes

246

Timer_B Operation

247

13-15Timer_B

247

13-16 Timer_B

248

13-17Timer_B

249

13.2.6 Timer_B Interrupts

250

13-19Timer_B

251

13.3 Timer_B Registers

252

TBR, Timer_B Register

254

Chapter 14

258

USART Introduction: UART Mode

260

14.2.2 Character Format

261

Figure 14−2. Character Format

261

Figure 14−3. Idle-Line Format

262

USART Operation: UART Mode

263

Automatic Error Detection

265

14.2.4 USART Receive Enable

266

14.2.5 USART Transmit Enable

267

Baud Rate Bit Timing

269

Transmit Bit Timing

270

Receive Bit Timing

271

Figure 14−9. Receive Error

271

Typical Baud Rates and Errors

273

14.2.7 USART Interrupts

274

UxCTL, USART Control Register

279

USART Registers: UART Mode

282

UxRXBUFx

283

UxTXBUFx

283

ME1, Module Enable Register 1

284

ME2, Module Enable Register 2

284

Chapter 15

287

USART Introduction: SPI Mode

289

15.2.2 Master Mode

291

Four-Pin SPI Master Mode

291

15.2.3 Slave Mode

292

Four-Pin SPI Slave Mode

292

15.2.4 SPI Enable

293

Transmit Enable

293

Receive Enable

294

15.2.5 Serial Clock Control

295

Figure 15−9. USART SPI Timing

296

15.2.6 SPI Interrupts

297

USART Operation: SPI Mode

298

USART Registers: SPI Mode

303

Chapter 16

308

16.1 OA Introduction

309

Figure 16−1. OA Block Diagram

310

16.2 OA Operation

311

16.2.4 OA Configurations

312

Table 16−1.OA Mode Select

312

General Purpose Opamp Mode

312

Unity Gain Mode

312

Comparator Mode

312

Non-Inverting PGA Mode

313

Inverting PGA Mode

313

Differential Amplifier Mode

313

16-10 OA

317

16.3 OA Registers

318

OANx OAPx OAPMx OAADC1 OAADC0

319

OAFBRx OAFCx Reserved OARRIP

320

Comparator_A

321

Comparator_A Introduction

323

17-3Comparator_A

323

17.2 Comparator_A Operation

324

17.2.3 Output Filter

325

17.3 Comparator_A Registers

329

LCD Controller

332

LCD Controller Introduction

334

18-3LCD Controller

334

18.2 LCD Controller Operation

335

18.2.4 LCD Voltage Generation

336

LCD Contrast Control

336

18.2.5 LCD Outputs

336

18.2.6 Static Mode

337

Static Mode Software Example

339

18.2.7 2-Mux Mode

340

2-Mux Mode Software Example

342

18.2.8 3-Mux Mode

343

3-Mux Mode Software Example

345

18.2.9 4-Mux Mode

346

4-Mux Mode Software Example

348

18.3 LCD Controller Registers

349

LCDCTL, LCD Control Register

350

LCD_A Controller

351

LCD_A Controller Introduction

353

19-3LCD_A Controller

353

19.2.1 LCD Memory

354

Figure 19−2. LCD memory

354

19.2.2 Blinking the LCD

354

LCD Voltage Selection

355

LCD Bias Generation

355

Figure 19−3. Bias Generation

356

19.2.4 LCD Timing Generation

358

19.2.5 LCD Outputs

358

19.2.6 Static Mode

359

19.2.7 2-Mux Mode

362

19.2.8 3-Mux Mode

365

19.2.9 4-Mux Mode

368

19.3 LCD Controller Registers

371

LCD_A Controller Operation

374

19-24 LCD_A Controller

374

19-26 LCD_A Controller

376

Chapter 20

377

20.1 ADC12 Introduction

378

†MSP430FG43x devices only

379

20.2 ADC12 Operation

380

Analog Port Selection

381

20.2.4 Auto Power-Down

382

Extended Sample Mode

383

Pulse Sample Mode

384

Sample Timing Considerations

385

20.2.6 Conversion Memory

386

20.2.7 ADC12 Conversion Modes

386

x = pointer to ADC12MCTLx

387

Sequence-of-Channels Mode

388

Repeat-Single-Channel Mode

389

Stopping Conversions

391

ADC12 Operation

392

20-16 ADC12

392

20-17ADC12

393

20.2.10 ADC12 Interrupts

394

20.3 ADC12 Registers

396

ADC12 Registers

401

20-25ADC12

401

20-26 ADC12

402

ADC12IEx

402

ADC12IFGx

402

ADC12 interrupt vector value

403

Chapter 21

404

21.1 SD16 Introduction

405

SD16 Introduction

406

21-3SD16

406

21.2 SD16 Operation

407

Analog Input Setup

408

21.2.6 Digital Filter

409

SD16 Operation

410

21-7SD16

410

Digital Filter Output

411

ZERO 8000 800000

412

21.2.8 Conversion Modes

413

21-11SD16

414

21-12 SD16

415

21-13SD16

416

21-14 SD16

417

21-15SD16

418

21.2.11 Interrupt Handling

419

Interrupt Delay Operation

419

21.3 SD16 Registers

421

12’s complement

423

SD16 interrupt vector value

426

Chapter 22

427

22.1 SD16_A Introduction

428

SD16_A Introduction

429

22-3SD16_A

429

22.2 SD16_A Operation

430

22.2.7 Digital Filter

432

SD16_A Operation

433

22-7SD16_A

433

22-9SD16_A

435

22.2.9 Conversion Modes

437

Single Conversion

437

Continuous Conversion

437

22-12 SD16_A

438

22.2.11 Interrupt Handling

439

22.3 SD16_A Registers

440

SD16_A Registers

445

22-19SD16_A

445

Conversion

445

SD16_A interrupt vector value

446

Chapter 23

447

23.1 DAC12 Introduction

448

DAC12 Introduction

449

23-3DAC12

449

23-4 DAC12

450

23.2 DAC12 Operation

451

23.2.2 DAC12 Reference

452

23.2.4 DAC12_xDAT Data Format

453

Figure 23−5. Negative Offset

454

Figure 23−6. Positive Offset

454

DAC12 Operation

455

23-9DAC12

455

23.2.7 DAC12 Interrupts

456

23.3 DAC12 Registers

457

 

461

24.1 Scan IF Introduction

462

Scan IF Introduction

463

24-3Scan IF

463

24.2 Scan IF Operation

464

Scan IF Operation

465

24-5Scan IF

465

Excitation

466

Mid-Voltage Generator

466

24-7Scan IF

467

Sample-And-Hold

468

24-10 Scan IF

470

Comparator and DAC

471

24-13Scan IF

473

24-14 Scan IF

474

24-15Scan IF

475

TSM Operation

476

TSM Control of the AFE

476

TSM State Duration

476

Table 24−5.TSM State Duration

476

TSM State Clock Source Select

477

TSM Stop Condition

477

TSM Test Cycles

478

TSM Example

479

24-20 Scan IF

480

PSM Operation

481

Next State Calculation

482

PSM Counters

483

Simplest State Machine

484

24.2.4 Scan IF Debug Register

486

24.2.5 Scan IF Interrupts

487

Table 24−7.Scan IF Interrupts

487

24-28 Scan IF

488

24-29Scan IF

489

24-30 Scan IF

490

24-31Scan IF

491

24-32 Scan IF

492

24.2.8 Quadrature Decoding

493

24.3 Scan IF Registers

495

Scan IF Registers

496

24-36 Scan IF

496

Reserved

496

SIFDEBUGx

496

Last PSM

496

24-37Scan IF

497

TSM Index

497

PSM Bits

497

24-39Scan IF

499

SIFCNT2x

499

SIFCNT1x

499

SIFPSMVx

499

24-41Scan IF

501

SIFTESTD

501

24-49Scan IF

509

DAC Data

509

Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0

512

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Texas Instruments MSP430x4xx manuály

Texas instruments MSP430x4xx Uživatelský manuál (512 strany)

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