Rainbow Electronics ATtiny43U - Manual (Page 179)

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8048B–AVR–03/09
11.4 Register Description ........................................................................................78
12 8-bit Timer/Counter with PWM (Timer/Counter0 and Timer/Counter1) .
79
12.1 Features ..........................................................................................................79
12.2 Overview ..........................................................................................................79
12.3 Timer/Counter Clock Sources .........................................................................80
12.4 Counter Unit ....................................................................................................80
12.5 Output Compare Unit .......................................................................................81
12.6 Compare Match Output Unit ............................................................................83
12.7 Modes of Operation .........................................................................................84
12.8 Timer/Counter Timing Diagrams .....................................................................88
12.9 Register Description ........................................................................................90
13 Timer/Counter Prescaler ....................................................................... 98
13.1 Prescaler Reset ...............................................................................................98
13.2 External Clock Source .....................................................................................98
13.3 Register Description ........................................................................................99
14 USI – Universal Serial Interface .......................................................... 100
14.1 Features ........................................................................................................100
14.2 Overview ........................................................................................................100
14.3 Functional Descriptions .................................................................................101
14.4 Alternative USI Usage ...................................................................................107
14.5 Register Descriptions ....................................................................................107
15 Analog Comparator ............................................................................. 112
15.1 Analog Comparator Multiplexed Input ...........................................................112
15.2 Register Description ......................................................................................113
16 Analog to Digital Converter ................................................................ 115
16.1 Features ........................................................................................................115
16.2 Overview ........................................................................................................115
16.3 ADC Operation ..............................................................................................116
16.4 Starting a Conversion ....................................................................................116
16.5 Prescaling and Conversion Timing ................................................................117
16.6 Changing Channel or Reference Selection ...................................................120
16.7 ADC Noise Canceler .....................................................................................121
16.8 Analog Input Circuitry ....................................................................................122
16.9 Analog Noise Canceling Techniques .............................................................122