Datasheet

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ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET]
8284E–AVR–02/2013
26.7Boundary-scan Description Language Files ........................................................276
26.8Register description .............................................................................................277
27 Boot Loader Support – Read-While-Write Self-Programming ......... 278
27.1Features ..............................................................................................................278
27.2Overview ..............................................................................................................278
27.3Application and Boot Loader Flash Sections .......................................................278
27.4Read-While-Write and No Read-While-Write Flash Sections ..............................278
27.5Boot Loader Lock Bits .........................................................................................281
27.6Entering the Boot Loader Program ......................................................................283
27.7Addressing the Flash During Self-Programming .................................................283
27.8Self-Programming the Flash ................................................................................284
27.9Register description .............................................................................................291
28 Memory programming ......................................................................... 293
28.1Program and Data Memory Lock Bits ..................................................................293
28.2Fuse bits ..............................................................................................................294
28.3Signature Bytes ...................................................................................................296
28.4Calibration Byte ...................................................................................................296
28.5Page size .............................................................................................................296
28.6Parallel Programming Parameters, Pin Mapping, and Commands .....................297
28.7Parallel programming ..........................................................................................298
28.8Serial downloading ..............................................................................................307
28.9Programming via the JTAG Interface ..................................................................312
29 Electrical characteristics – TA = -40°C to 85°C ................................. 325
29.1Absolute maximum ratings* .................................................................................325
29.2DC Characteristics ...............................................................................................325
29.3Speed Grades .....................................................................................................332
29.4Clock characteristics ............................................................................................333
29.5System and reset characteristics .........................................................................334
29.6Brown-out Detection ............................................................................................334
29.7External Interrupts Characteristics ......................................................................334
29.8SPI Timing Characteristics ..................................................................................335
29.9ADC characteristics .............................................................................................337
29.10LCD controller characteristics ............................................................................338
30 Electrical Characteristics – TA = -40°C to 105°C ............................... 339
30.1Absolute Maximum Ratings* ...............................................................................339