vi
8271D–AVR–05/11
ATmega48A/PA/88A/PA/168A/PA/328/P
26 Self-Programming the Flash, ATmega 48A/48PA ............................. 271
26.1Overview .............................................................................................................271
26.2Addressing the Flash During Self-Programming .................................................272
26.3Register Description ............................................................................................278
27 Boot Loader Support – Read-While-Write Self-Programming ......... 280
27.1Features ..............................................................................................................280
27.2Overview .............................................................................................................280
27.3Application and Boot Loader Flash Sections .......................................................280
27.4Read-While-Write and No Read-While-Write Flash Sections ..............................281
27.5Boot Loader Lock Bits .........................................................................................283
27.6Entering the Boot Loader Program ......................................................................284
27.7Addressing the Flash During Self-Programming .................................................285
27.8Self-Programming the Flash ................................................................................285
27.9Register Description ............................................................................................295
28 Memory Programming ......................................................................... 297
28.1Program And Data Memory Lock Bits .................................................................297
28.2Fuse Bits .............................................................................................................298
28.3Signature Bytes ...................................................................................................301
28.4Calibration Byte ...................................................................................................302
28.5Page Size ............................................................................................................302
28.6Parallel Programming Parameters, Pin Mapping, and Commands .....................303
28.7Parallel Programming ..........................................................................................305
28.8Serial Downloading .............................................................................................312
29 Electrical Characteristics .................................................................... 317
29.1Absolute Maximum Ratings* ...............................................................................317
29.2DC Characteristics ..............................................................................................317
29.3Speed Grades .....................................................................................................322
29.4Clock Characteristics ...........................................................................................323
29.5System and Reset Characteristics ......................................................................324
29.6SPI Timing Characteristics ..................................................................................325
29.7Two-wire Serial Interface Characteristics ............................................................327
29.8ADC Characteristics ............................................................................................329
29.9Parallel Programming Characteristics .................................................................330
30 Typical Characteristics ........................................................................ 332
30.1ATmega48A Typical Characteristics ...................................................................333
To Next Page
Loading...
Need help?
General
