Intel PXA26X manuals

Intel PXA26X User Manual (624 pages)

Brand: Intel | Category: Laptops | Size: 4.33 MB |

Developer’s Manual

Contents

Revision History

Introduction 1

1.2.1 Memory Controller

1.2.22 Hardware UART (HWUART)

System Architecture 2

2.2 Package Types

Management

2.4 Input/Output Ordering

2.5 Semaphores

2.6 Interrupts

2.7 Reset

2.8 Internal Registers

2.11 Power Management

2.12 Pin List

System Architecture

2.13 Register Address Summary

2.14 Memory Map

Clocks and Power Manager 3

3.3 Clock Manager

3.3.1 32.768-KHz Oscillator

3.3.2 3.6864-MHz Oscillator

3.3.3 Core Phase Locked Loop

3.4 Resets and Power Modes

3.4.1 Hardware Reset

3.4.2 Watchdog Reset

3.4.3 GPIO Reset

3.4.4 Run Mode

3.4.5 Turbo Mode

3.4.6 Idle Mode

3.4.7 33-MHz Idle Mode

3.4.9 Sleep Mode

3.4.9.3 Entering Sleep Mode

3.4.9.5 Exiting Sleep Mode

3.4.10 Power Mode Summary

3.5 Power Manager Registers

PGSR1, PGSR2)

• GPIO reset

• Sleep mode

• Watchdog reset

• Hardware reset

Clocks and Power Manager

100

3.6 Clocks Manager Registers

101

Oscillator

108

System Integration Unit 4

109

System Integration Unit

112

4.2 Interrupt Controller

130

134

4.3 Real-Time Clock (RTC)

140

4.3.3 Trim Procedure

143

4.4 Operating System Timer

146

OSMR2, OSMR3)

147

4.5 Pulse Width Modulator

151

4.5.2 Register Descriptions

152

PWM_DUTYn = 6

155

PWM_PERVALn = 10 (+1)

155

4.5.4 Register Summary

156

DMA Controller

160

(external)

160

(internal)

160

Memory Controller

160

5.1.2 Signal Descriptions

161

• Set zero

163

• Set three

163

5.1.4.2 Descriptor Fetch Mode

165

(running)

166

5.1.5 Channel States

167

5.1.6 Read and Write Order

167

5.2 Transferring Data

169

• DCMD[INCTRGADDR] = 1

171

• DCMD[FLOWSRC] = 1

171

• DCMD[FLOWTRG] = 0

171

5.2.4 Memory-to-Memory Moves

174

5.3.1 DMA Interrupt Register

175

5.3.7 DMA Command Registers

181

5.4 Examples

183

Locations

186

Memory Controller 6

191

6.2 Functional Description

192

6.3 Memory System Examples

194

6.4 Memory Accesses

196

6.4.1 Reads and Writes

197

6.6.1 SDRAM MDCNFG Register

199

6.6.3 SDRAM MDREFR Register

204

Refer to Table 6-6

205

6.6.4 SDRAM Memory Options

207

6.6.5 SDRAM Command Overview

215

• Power-Down (PWRDN)

216

• Enter Self-Refresh (SLFRSH)

216

• Exit Power-Down (PWRDNX)

216

• No Operation (NOP)

216

Figure 6-5. SDRAM Read

217

Figure 6-9. SDRAM Write

219

6.7.1.1 SMROM Memory Options

225

Configuration Register

226

CL = 5CL = 5RL = 2RL = 2

228

6.8.1 Static Memory Interface

231

6.8.3 ROM Interface

238

MSC0:RDN = 1, MSC0:RRR = 1)

239

MSC0:RDN = 1, MSC0:RRR = 0)

240

6.8.4 SRAM Interface Overview

241

6.8.6 FLASH Memory Interface

246

6.9.3 16-Bit PC Card Overview

251

0ns 50ns 100ns 150ns

257

6.10 Companion Chip Interface

258

6.10.1.1 GPIO Reset

261

6.11.1 Alternate Booting

262

6.11.2 Boot Time Defaults

262

7.1 Overview

269

7.1.1 Features

270

7.1.2 Pin Descriptions

272

7.2.1 Enabling the Controller

272

7.3.1 Input FIFOs

274

7.3.2 Lookup Palette

274

7.3.4 Output FIFOs

277

7.3.6 Direct Memory Access

278

7.4.1 External-Palette Buffer

279

7.4.2 External-Frame Buffer

280

• 32 pixels for 1-bit pixels

282

• 16 pixels for 2-bit pixels

282

• 8 pixels for 4-bit pixels

282

• 4 pixels for 8-bit pixels

282

• 2 pixels for 16-bit pixels

282

7.5 Functional Timing

283

PPL = 319

284

Line 239 Data Line 0 Data

285

ENB set to 1

286

PCP - Pixel Clock Polarity

287

• DMA bus errors

288

7.6.1.2 Branch Mask (BM)

290

7.6.1.5 LCD Disable (DIS)

291

7.6.1.14 LCD Enable (ENB)

296

7.6.2.4 Pixels Per Line (PPL)

298

7.6.3.4 Lines Per Panel (LPP)

301

7.6.4.2 Bits Per Pixel (BPP)

302

7.6.5 LCD Controller DMA

305

7.6.5.1 Frame Descriptors

306

Reserved

307

7.6.5.5.1 Load Palette (PAL)

308

7.6.7.2 Branch Status (BS)

312

7.6.9 TMED RGB Seed Register

314

Matrix (COAM)

317

8.1 Overview

319

8.2 Signal Description

319

8.3 Functional Description

320

8.4 Data Formats

320

8.4.1.2 SPI Format Details

322

8.6 Baud Rate Generation

325

8.7 SSP Serial Port Registers

325

8.7.1.2 Frame Format (FRF)

328

8.7.2.3 Loop Back Mode (LBM)

330

Min Max Min Max

333

8 Bytes 0 11 3 15

333

16 Bytes 0 7 7 15

333

8.7.4.7 Transmit FIFO Level

337

8.7.4.8 Receive FIFO Level

337

9.1 Overview

339

9.2 Signal Description

339

9.3 Functional Description

339

9.3.1 Operational Blocks

341

9.3.3.1 START Condition

343

9.3.3.3 STOP Condition

344

9.4.4 Arbitration

347

9.4.4.2 SDA Arbitration

348

9.4.5 Master Operations

349

9.4.6 Slave Operations

353

9.4.7 General Call Address

354

• Sets the ISR[GCAD] bit

355

• Sets the ISR[SAD] bit

355

9.5.1 Initialize Unit

356

9.5.3 Read n Bytes as a Slave

357

9.6.1 Initialize Unit

357

9.6.3 Read 1 Byte as a Master

358

9.7 Glitch Suppression Logic

360

9.8 Reset Conditions

360

9.9 Register Definitions

360

C Data Buffer Register- IDBR

361

C Control Register- ICR

362

for the following I

363

Table 9-11. I

363

C Status Register

364

Table 9-12. I

365

Transmitter 10

367

10.2 Overview

368

10.3 Signal Descriptions

369

10.4.1 Reset

371

– IER (Sheet 1 of 2)

375

– IER (Sheet 2 of 2)

376

– LCR (Sheet 1 of 2)

380

– LCR (Sheet 2 of 2)

381

– LSR (Sheet 1 of 2)

382

– LSR (Sheet 2 of 2)

383

– MCR (Sheet 1 of 2)

384

– MCR (Sheet 2 of 2)

385

10.4.5 DMA Requests

388

10.4.6.2 Operation

390

10.5 Register Summary

392

11.1 Signal Description

395

11.2.2 Frame Format

397

11.2.3 Address Field

398

11.2.4 Control Field

398

11.2.5 Data Field

398

11.2.6 CRC Field

398

11.2.7 Baud Rate Generation

399

11.2.8 Receive Operation

399

11.2.9 Transmit Operation

400

Descriptions

402

11.3.4 FICP Data Register

406

11.3.5 FICP Status Register 0

407

11.3.6 FICP Status Register 1

408

Universal Serial Bus Device

411

Controller 12

411

12.2 Device Configuration

412

12.3.1 Signalling Levels

413

12.3.2 Bit Encoding

414

12.3.3 Field Formats

414

12.3.4 Packet Formats

415

12.3.4.3 Data Packet Type

416

12.3.5 Transaction Formats

417

12.3.6 UDC Device Requests

418

12.4 UDC Hardware Connection

420

(optional)

421

12.5 UDC Operation

422

Status Stage

424

12.5.7.1 Software Enables DMA

427

12.6.1 UDC Control Register

432

12, or 14

455

AC97 Controller Unit 13

463

13.3 Signal Description

464

OUTGOING STREAMS

466

INCOMING STREAMS

466

Data PhaseTag Phase

466

SDATA_OUT

467

13.4.1.1 Slot 0: Tag Phase

468

13.4.1.7 Slots 6-11: Reserved

470

13.4.1.8 Slot 12: I/O Control

470

13.4.2.1 Slot 0: Tag Phase

471

Bit Name Description

473

13.5 AC-link Low Power Mode

474

13.5.2 Waking up the AC-link

475

13.6 ACUNIT Operation

476

13.6.1 Initialization

477

13.6.2 Trailing bytes

478

13.8 Functional Description

479

13.8.2 Interrupts

480

13.8.3 Registers

480

• Audio codec registers

481

• Modem codec registers

481

AC97 Controller Unit

482

Controller 14

497

14.2 Signal Descriptions

498

14.3 Controller Operation

499

14.3.4 Transmit FIFO Errors

501

14.3.5 Receive FIFO Errors

501

14.3.6 Trailing Bytes

501

14.5 Data Formats

502

A8842-01

503

A8843-01

503

• Setting ENB to one does:

504

14.7 Interrupts

512

MultiMediaCard Controller 15

513

15.2.1 Signal Description

516

15.2.4 MMC and SPI Modes

517

15.2.4.2 SPI Mode

518

15.2.5 Error Detection

519

15.2.6 Interrupts

519

15.2.7 Clock Control

519

15.2.8 Data FIFOs

520

• Receive 96 bytes of data:

521

• Receive 98 bytes of data:

521

• Receive 105 bytes:

521

• Transmit 96 bytes of data:

522

• Transmit 98 bytes of data:

522

• Transmit 105 bytes:

523

15.2.8.4 DMA and Program I/O

523

15.3.2 Data Transfer

524

15.3.2.1 Block Data Write

525

15.3.2.2 Block Data Read

525

Time-out Delay

526

MMC_RDTO[READ_TO]

526

15.3.3 Busy Sequence

527

15.3.4 SPI Functionality

527

15.4.1 Start and Stop Clock

528

15.4.2 Initialize

528

15.4.3 Enabling SPI Mode

528

15.4.5 Erase

529

15.4.7 Single Block Read

530

15.4.8 Multiple Block Write

530

15.4.9 Multiple Block Read

531

15.4.10 Stream Write

531

15.4.11 Stream Read

532

15.5.1 MMC_STRPCL Register

533

15.5.2 MMC_STAT Register

534

15.5.3 MMC_CLKRT Register

535

15.5.4 MMC_SPI Register

536

15.5.5 MMC_CMDAT Register

537

15.5.6 MMC_RESTO Register

538

15.5.7 MMC_RDTO Register

539

15.5.8 MMC_BLKLEN Register

540

15.5.9 MMC_NOB Register

540

15.5.10 MMC_PRTBUF Register

540

15.5.11 MMC_I_MASK Register

541

15.5.12 MMC_I_REG Register

542

15.5.13 MMC_CMD Register

543

MultiMediaCard Controller

544

Table 15-18. MMC_CMD Register

544

15.5.14 MMC_ARGH Register

546

15.5.15 MMC_ARGL Register

546

15.5.18 MMC_TXFIFO FIFO

547

Protocol Serial Ports 16

549

16.3 Signal Description

550

16.4 Operation

550

16.4.2.1 Time-out

551

16.4.3 Data Formats

552

A9650-01

554

A9518-02

554

A9651-01

555

A9519-02

555

A9652-01

556

A9520-02

557

A9653-01

558

A9521-02

558

A9523-02

559

T1 T2 T3 T4

560

16.4.4 Hi-Z on SSPTXD

561

A9975-01

562

MSB 4 to 32 Bits LSB

562

Bit[N] Bit[N-1] Bit[1] Bit[0]

562

A9976-01

562

A9977-01

563

A9978-01

563

16.4.5 FIFO Operation

565

16.4.6 Baud-Rate Generation

565

Table 16-4

569

(Start Delay)

575

+ (Dummy start)

575

+ (Data size)

575

+ (Dummy Stop)

575

SSTO Bit Definitions

577

16.6 Register Summary

582

Hardware UART 17

585

17.2 Features

586

17.3 Signal Descriptions

587

17.4 Operation

587

17.4.1 Reset

589

17.4.3 Autoflow Control

591

can be programmed by the

592

17.4.5.1 Operation

593

(see Table 17-2)

594

Settings

595

Hardware UART

616

Internal Flash 18

617

Software

618

18.1.4 SXCNFG Configuration

618

Internal Flash

620

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Intel PXA26X manuals

Intel PXA26X User Manual (624 pages)

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