
244
9157C–AVR–03/12
Atmel ATtiny88 Automotive
16
Analog Comparator ............................................................................. 160
16.1
Analog Comparator Multiplexed Input ...........................................................160
16.2
Register Description ......................................................................................161
17
Analog-to-Digital Converter ................................................................ 164
17.1
Features ........................................................................................................164
17.2
Overview ........................................................................................................164
17.3
Operation .......................................................................................................165
17.4
Starting a Conversion ....................................................................................166
17.5
Prescaling and Conversion Timing ................................................................167
17.6
Changing Channel or Reference Selection ...................................................170
17.7
ADC Noise Canceler .....................................................................................171
17.8
Analog Input Circuitry ....................................................................................171
17.9
Analog Noise Canceling Techniques .............................................................172
17.10
ADC Accuracy Definitions .............................................................................173
17.11
ADC Conversion Result .................................................................................176
17.12
Temperature Measurement ...........................................................................176
17.13
Register Description ......................................................................................177
18
debugWIRE On-chip Debug System .................................................. 182
18.1
Features ........................................................................................................182
18.2
Overview ........................................................................................................182
18.3
Physical Interface ..........................................................................................182
18.4
Software Break Points ...................................................................................183
18.5
Limitations of debugWIRE .............................................................................183
18.6
Register Description ......................................................................................183
19
Self-Programming the Flash ............................................................... 184
19.1
Addressing the Flash During Self-Programming ...........................................185
19.2
Register Description ......................................................................................189
20
Memory Programming ......................................................................... 191
20.1
Program And Data Memory Lock Bits ...........................................................191
20.2
Fuse Bits ........................................................................................................192
20.3
Signature Bytes .............................................................................................193
20.4
Calibration Byte .............................................................................................193
20.5
Page Size ......................................................................................................194
20.6
Parallel Programming Parameters, Pin Mapping, and Commands ...............194
20.7
Parallel Programming ....................................................................................196