AT91SAM7X128B-CU(2009) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

AT91SAM7X128B-CU
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM7X512/256/128 Preliminary

25.4 USB Clock Controller .....................................................................................182

25.5 Peripheral Clock Controller ............................................................................182

25.6 Programmable Clock Output Controller .........................................................183

25.7 Programming Sequence ................................................................................183

25.8 Clock Switching Details .................................................................................187

25.9 Power Management Controller (PMC) User Interface ..................................190

26 Debug Unit (DBGU) .............................................................................. 205

26.1 Overview ........................................................................................................205

26.2 Block Diagram ...............................................................................................206

26.3 Product Dependencies ..................................................................................207

26.4 UART Operations ..........................................................................................207

26.5 Debug Unit (DBGU) User Interface ..............................................................214

27 Parallel Input/Output Controller (PIO) ................................................ 229

27.1 Overview ........................................................................................................229

27.2 Block Diagram ...............................................................................................230

27.3 Product Dependencies ..................................................................................231

27.4 Functional Description ...................................................................................232

27.5 I/O Lines Programming Example ...................................................................237

27.6 Parallel Input/Output Controller (PIO) User Interface ....................................238

28 Serial Peripheral Interface (SPI) ......................................................... 255

28.1 Overview ........................................................................................................255

28.2 Block Diagram ...............................................................................................256

28.3 Application Block Diagram .............................................................................256

28.4 Signal Description .........................................................................................257

28.5 Product Dependencies ..................................................................................257

28.6 Functional Description ...................................................................................258

28.7 Serial Peripheral Interface (SPI) User Interface ............................................267

29 Two-wire Interface (TWI) ...................................................................... 281

29.1 Overview ........................................................................................................281

29.2 Block Diagram ...............................................................................................281

29.3 Application Block Diagram .............................................................................282

29.4 Product Dependencies ..................................................................................282

29.5 Functional Description ...................................................................................283

29.6 TWI User Interface ........................................................................................294

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6120H–ATARM–17-Feb-09

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