AT91SAM9G45(2009) Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9G45
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

27.8 Functional Description ...................................................................................374

27.9 Advanced Interrupt Controller (AIC) User Interface .......................................384

28 Debug Unit (DBGU) .............................................................................. 395

28.1 Description .....................................................................................................395

28.2 Embedded Characteristics ............................................................................395

28.3 Block Diagram ...............................................................................................396

28.4 Product Dependencies ..................................................................................397

28.5 UART Operations ..........................................................................................397

28.6 Debug Unit (DBGU) User Interface ...............................................................404

29 Parallel Input/Output Controller (PIO) ................................................ 419

29.1 Description .....................................................................................................419

29.2 Block Diagram ...............................................................................................420

29.3 Product Dependencies ..................................................................................421

29.4 Functional Description ...................................................................................422

29.5 I/O Lines Programming Example ...................................................................428

29.6 Parallel Input/Output Controller (PIO) User Interface ....................................429

30 Serial Peripheral Interface (SPI) ......................................................... 449

30.1 Description .....................................................................................................449

30.2 Embedded Characteristics ............................................................................449

30.3 Block Diagram ...............................................................................................450

30.4 Application Block Diagram .............................................................................451

30.5 Signal Description .........................................................................................452

30.6 Product Dependencies ..................................................................................452

30.7 Functional Description ...................................................................................453

30.8 Serial Peripheral Interface (SPI) User Interface ............................................467

31 Two-wire Interface (TWI) ..................................................................... 481

31.1 Description .....................................................................................................481

31.2 Embedded Characteristics ............................................................................481

31.3 List of Abbreviations ......................................................................................482

31.4 Block Diagram ...............................................................................................482

31.5 Application Block Diagram .............................................................................483

31.6 Product Dependencies ..................................................................................483

31.7 Functional Description ...................................................................................484

31.8 Master Mode ..................................................................................................486

31.9 Multi-master Mode .........................................................................................498

vi AT91SAM9G45

6438D–ATARM–13-Oct-09

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