AT90PWM3_08 Datasheet, PDF (358/361 Pages) ATMEL Corporation – 8-bit Microcontroller with 8K Bytes In-System Programmable Flash

21.9 Amplifier .........................................................................................................252
21.10 Amplifier Control Registers ............................................................................256
22 Digital to Analog Converter - DAC ..................................................... 259
22.1 Features ........................................................................................................259
22.2 Operation .......................................................................................................260
22.3 Starting a Conversion ....................................................................................260
22.4 DAC Register Description ..............................................................................261
23 debugWIRE On-chip Debug System .................................................. 264
23.1 Features ........................................................................................................264
23.2 Overview ........................................................................................................264
23.3 Physical Interface ..........................................................................................264
23.4 Software Break Points ...................................................................................265
23.5 Limitations of debugWIRE .............................................................................265
23.6 debugWIRE Related Register in I/O Memory ................................................265
24 Boot Loader Support – Read-While-Write Self-Programming ......... 265
24.1 Boot Loader Features ....................................................................................266
24.2 Application and Boot Loader Flash Sections .................................................266
24.3 Read-While-Write and No Read-While-Write Flash Sections ........................266
24.4 Boot Loader Lock Bits ...................................................................................269
24.5 Entering the Boot Loader Program ................................................................270
24.6 Addressing the Flash During Self-Programming ...........................................272
24.7 Self-Programming the Flash ..........................................................................273
25 Memory Programming ......................................................................... 279
25.1 Program And Data Memory Lock Bits ...........................................................279
25.2 Fuse Bits ........................................................................................................281
25.3 PSC Output Behaviour During Reset ............................................................281
25.4 Signature Bytes .............................................................................................283
25.5 Calibration Byte .............................................................................................283
25.6 Parallel Programming Parameters, Pin Mapping, and Commands ...............283
25.7 Serial Programming Pin Mapping ..................................................................285
25.8 Parallel Programming ....................................................................................286
25.9 Serial Downloading ........................................................................................294
26 Electrical Characteristics^{(1) ................................................................................................ 299}
26.1 Absolute Maximum Ratings* .........................................................................299
360 AT90PWM2/3/2B/3B
4317I–AVR–01/08