Rainbow-electronics ATmega64C1 Instrukcja Użytkownika Pobierz pdf (Strona 363)

363

7647A–AVR–02/08

ATmega32/64/M1/C1

19.3 Control Register .............................................................................................257

20 Analog Comparator ............................................................................. 258

20.1 Features ........................................................................................................258

20.2 Overview ........................................................................................................258

20.3 Use of ADC Amplifiers ...................................................................................259

20.4 Analog Comparator Register Description ......................................................260

21 Digital to Analog Converter - DAC ..................................................... 266

21.1 Features ........................................................................................................266

21.2 Operation .......................................................................................................267

21.3 Starting a Conversion ....................................................................................267

21.4 DAC Register Description ..............................................................................268

22 debugWIRE On-chip Debug System .................................................. 271

22.1 Features ........................................................................................................271

22.2 Overview ........................................................................................................271

22.3 Physical Interface ..........................................................................................271

22.4 Software Break Points ...................................................................................272

22.5 Limitations of debugWIRE .............................................................................272

22.6 debugWIRE Related Register in I/O Memory ................................................272

23 Boot Loader Support – Read-While-Write Self-Programming

ATmega32/64M1 272

23.1 Boot Loader Features ....................................................................................273

23.2 Application and Boot Loader Flash Sections .................................................273

23.3 Read-While-Write and No Read-While-Write Flash Sections ........................273

23.4 Boot Loader Lock Bits ...................................................................................276

23.5 Entering the Boot Loader Program ................................................................277

23.6 Addressing the Flash During Self-Programming ...........................................279

23.7 Self-Programming the Flash ..........................................................................280

24 Memory Programming ......................................................................... 289

24.1 Program And Data Memory Lock Bits ...........................................................289

24.2 Fuse Bits ........................................................................................................290

24.3 PSC Output Behavior During Reset ..............................................................291

24.4 Signature Bytes .............................................................................................293

24.5 Calibration Byte .............................................................................................293

24.6 Parallel Programming Parameters, Pin Mapping, and Commands ...............293

24.7 Serial Programming Pin Mapping ..................................................................296

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Rainbow-electronics ATmega64C1 Instrukcja Użytkownika Strona 363