Atmel ATtiny13A - Page 173

iii
8126F–AVR–05/12
ATtiny13A
13.2 Register Description ........................................................................................80
14 Analog to Digital Converter .................................................................. 82
14.1 Features ..........................................................................................................82
14.2 Overview ..........................................................................................................82
14.3 Operation .........................................................................................................83
14.4 Starting a Conversion ......................................................................................83
14.5 Prescaling and Conversion Timing ..................................................................84
14.6 Changing Channel or Reference Selection .....................................................87
14.7 ADC Noise Canceler .......................................................................................88
14.8 Analog Input Circuitry ......................................................................................88
14.9 Analog Noise Canceling Techniques ...............................................................89
14.10 ADC Accuracy Definitions ...............................................................................89
14.11 ADC Conversion Result ...................................................................................92
14.12 Register Description ........................................................................................92
15 debugWIRE On-chip Debug System .................................................... 96
15.1 Features ..........................................................................................................96
15.2 Overview ..........................................................................................................96
15.3 Physical Interface ............................................................................................96
15.4 Software Break Points .....................................................................................97
15.5 Limitations of debugWIRE ...............................................................................97
15.6 Register Description ........................................................................................97
16 Self-Programming the Flash ................................................................. 98
16.1 Performing Page Erase by SPM ......................................................................98
16.2 Filling the Temporary Buffer (Page Loading) ...................................................98
16.3 Performing a Page Write .................................................................................99
16.4 Addressing the Flash During Self-Programming .............................................99
16.5 EEPROM Write Prevents Writing to SPMCSR ..............................................100
16.6 Reading Fuse and Lock Bits from Firmware .................................................100
16.7 Preventing Flash Corruption ..........................................................................101
16.8 Programming Time for Flash when Using SPM ............................................101
16.9 Register Description ......................................................................................102
17 Memory Programming ......................................................................... 103
17.1 Program And Data Memory Lock Bits ...........................................................103
17.2 Fuse Bytes .....................................................................................................104
17.3 Calibration Bytes ...........................................................................................105