ATTINY43U_14 Datasheet, PDF (208/210 Pages) ATMEL Corporation – High Performance, Low Power AVR

17.1 Features ........................................................................................................129
17.2 Overview ........................................................................................................129
17.3 Physical Interface ..........................................................................................129
17.4 Software Break Points ...................................................................................130
17.5 Limitations of debugWIRE .............................................................................130
17.6 Register Description ......................................................................................130
18 Self-Programming the Flash ............................................................... 131
18.1 Performing Page Erase by SPM ....................................................................131
18.2 Filling the Temporary Buffer (Page Loading) .................................................131
18.3 Performing a Page Write ...............................................................................132
18.4 Addressing the Flash During Self-Programming ...........................................132
18.5 EEPROM Write Prevents Writing to SPMCSR ..............................................133
18.6 Reading the Fuse and Lock Bits from Software ............................................133
18.7 Preventing Flash Corruption ..........................................................................135
18.8 Programming Time for Flash when Using SPM ............................................135
18.9 Register Description ......................................................................................135
19 Memory Programming ......................................................................... 137
19.1 Program And Data Memory Lock Bits ...........................................................137
19.2 Fuse Bytes .....................................................................................................138
19.3 Device Signature Imprint Table .....................................................................139
19.4 Page Size ......................................................................................................140
19.5 Parallel Programming Parameters, Pin Mapping, and Commands ...............140
19.6 Parallel Programming ....................................................................................142
19.7 Serial Programming .......................................................................................149
20 Electrical Characteristics .................................................................... 153
20.1 Absolute Maximum Ratings* .........................................................................153
20.2 DC Characteristics .........................................................................................153
20.3 Speed Grades ...............................................................................................155
20.4 Clock Characteristics .....................................................................................155
20.5 System and Reset Characteristics ................................................................156
20.6 External Interrupt Characteristics ..................................................................157
20.7 Boost Converter Characteristics ....................................................................158
20.8 ADC Characteristics – Preliminary Data ........................................................159
20.9 Parallel Programming Characteristics ...........................................................161
20.10 Serial Programming Characteristics ..............................................................163
iv ATtiny43U
8048C–AVR–02/12